{"title":"Drone ESCs \u0026 Multirotor Electronic Speed Controllers","description":"\u003cstyle\u003e\n  .desc-section {\n    max-width: 75rem; \/* 1200px *\/\n    margin: 0 auto;\n    padding: 1.5rem 1rem;\n    background-color: #ffffff;\n    border-radius: 0;\n  }\n  .desc-text p {\n    color: #333333;\n    line-height: 1.75;\n    margin-bottom: 1rem;\n  }\n.desc-text.collapsed .collapsible {\n  display: none;\n}\n@media screen and (min-width: 768px) {\n  .desc-text.collapsed .collapsible {\n    display: block;\n  }\n}\n  .desc-btn-wrapper {\n    display: flex;\n    justify-content: center;\n    margin-top: 1rem;\n  }\n  .desc-button {\n    background-color: #E60073;\n    color: white;\n    border: none;\n    padding: 0.75rem 1.5rem;\n    border-radius: 9999px;\n    font-weight: 700;\n    text-transform: uppercase;\n    font-size: 0.875rem;\n    letter-spacing: 0.05em;\n    cursor: pointer;\n    transition: background-color 0.3s ease;\n  }\n  .desc-button:hover {\n    background-color: #D5006B;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"desc-section\"\u003e\n  \u003cdiv class=\"desc-text collapsed\" id=\"descText\"\u003e\n\u003cp\u003eChoose the right \u003cstrong\u003edrone ESC\u003c\/strong\u003e by matching more than just the amp rating. A reliable multirotor power system depends on the ESC supporting the correct LiPo cell count, motor and propeller load, flight-controller signal, wiring layout, cooling and onboard power arrangement.\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003eThis collection brings together \u003cstrong\u003eelectronic speed controllers for multirotors, quadcopters and UAV power systems\u003c\/strong\u003e, including dedicated brushless ESCs designed for the rapid motor-speed changes required during multirotor flight. Compare the specifications of each model carefully before selecting an ESC for your build.\u003c\/p\u003e\n\n\u003cp class=\"collapsible\"\u003e\u003cstrong\u003eQuick Selection Tip:\u003c\/strong\u003e Check LiPo voltage first, then continuous current, motor\/propeller load, BEC or external power requirements, signal compatibility, dimensions, wire configuration and cooling. Frame size alone is not enough to determine ESC compatibility.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"desc-btn-wrapper\"\u003e\n    \u003cbutton class=\"desc-button\" id=\"descToggleBtn\" aria-expanded=\"false\" aria-controls=\"descText\"\u003e\n      Read Full Guide\n    \u003c\/button\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\n  const text = document.getElementById('descText');\n  const btn = document.getElementById('descToggleBtn');\n\n  function updateButton(expanded) {\n    btn.textContent = expanded ? 'Show Less' : 'Read Full Guide';\n    btn.setAttribute('aria-expanded', expanded);\n  }\n\n  btn.addEventListener('click', () =\u003e {\n    const isCollapsed = text.classList.toggle('collapsed');\n    updateButton(!isCollapsed);\n  });\n\n  function handleResize() {\n    if(window.innerWidth \u003e= 768) {\n      text.classList.remove('collapsed');\n      updateButton(true);\n    } else {\n      text.classList.add('collapsed');\n      updateButton(false);\n    }\n  }\n\n  window.addEventListener('resize', handleResize);\n  window.addEventListener('load', handleResize);\n\u003c\/script\u003e","products":[{"product_id":"hobbywing-xrotor-20a-multirotor-esc","title":"Hobbywing XRotor 20A 4S BLDC Multirotor ESC – 3-4S, 20A\/30A for Drone","description":"\u003cdiv style=\"background:#f7f7f7;padding:14px 16px;margin:0 0 20px;border-left:4px solid #E60073;font-size:15px;line-height:1.7;\"\u003e\n  \u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong\u003eQuick Fit Check\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cul style=\"margin:0;padding-left:20px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eContinuous \/ Peak Current:\u003c\/strong\u003e 20A \/ 30A peak\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 3-4S LiPo\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e No\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMotor Connectors:\u003c\/strong\u003e 3.5mm gold female connectors\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBattery Connector:\u003c\/strong\u003e Not installed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTypical Application:\u003c\/strong\u003e 330\/450 class multirotors and quadcopters\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAvailable SKUs:\u003c\/strong\u003e 30901004 and 30901012\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHobbywing XRotor 20A 4S BLDC ESC\u003c\/strong\u003e is a dedicated brushless electronic speed controller developed for multirotor aircraft. Rated for \u003cstrong\u003e20A continuous current and 30A peak current\u003c\/strong\u003e, it supports \u003cstrong\u003e3-4S LiPo batteries\u003c\/strong\u003e and is intended primarily for 330\/450 class multirotor and quadcopter power systems.\u003c\/p\u003e\n\n\u003cp\u003eUnlike a general-purpose surface or airplane ESC, the XRotor 20A uses control software developed specifically for the rapid and repeated throttle changes required by multirotor flight. Its key features include fast throttle response, optimized compatibility with multirotor motors, twisted-pair throttle signal wiring, low-resistance MOSFETs and throttle signal frequency support up to 621Hz.\u003c\/p\u003e\n\n\u003cp\u003eThis product page combines two XRotor 20A variants: \u003cstrong\u003e30901004\u003c\/strong\u003e and \u003cstrong\u003e30901012\u003c\/strong\u003e. Their principal electrical ratings, supported battery range, BEC configuration, wiring and intended application are the same. Their physical dimensions and weight differ, so check the selected version against the available mounting space and wiring layout of your aircraft before ordering.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eHobbywing XRotor 20A Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;width:34%;\"\u003eContinuous Current\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e20A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e30A\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eBattery\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e3-4S LiPo\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eBEC Output\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNo BEC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eInput Wires\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eRed 18AWG × 150mm × 1; Black 18AWG × 150mm × 1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eMotor Output Wires\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eBlack 18AWG × 75mm × 3\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eInput Connector\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNone\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eMotor Connectors\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e3.5mm gold female connectors\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eThrottle Range Calibration\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eProgramming Method\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eTransmitter throttle-stick programming\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eTiming\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eIntermediate \/ High\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eDEO\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eOneShot Throttle Mode\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eLED Color Programming\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eMotor Rotation Programming\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eTypical Application\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e330\/450 class multirotors \/ quadcopters\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eChoose the Correct XRotor 20A Version\u003c\/h2\u003e\n\n\u003cp\u003eBoth variants on this page use the same 20A \/ 30A current rating, 3-4S LiPo operating range, no-BEC configuration, wire gauge and 3.5mm female motor connectors. The main differences relevant when ordering are their physical dimensions and weight.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eVersion\u003c\/th\u003e\n      \u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eSKU\u003c\/th\u003e\n      \u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eDimensions\u003c\/th\u003e\n      \u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eWeight\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eXRotor-20A Asian Version\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e30901004\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e50.0 × 21.6 × 12.0mm\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eApprox. 15g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eXRotor-20A Wire Leaded Asian Version\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e30901012\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e42.0 × 21.6 × 12.0mm\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eApprox. 18.5g\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f7f7f7;padding:12px 14px;margin:14px 0;font-size:14px;line-height:1.65;border-left:4px solid #E60073;\"\u003e\n  \u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eVersion Note:\u003c\/strong\u003e Select the version according to the exact SKU required for your build. Confirm ESC mounting space, wire routing and connector clearance before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eRapid Throttle Response for Multirotor Flight\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 20A uses a dedicated control program developed specifically for multirotor ESC operation. In a multirotor aircraft, the flight controller continuously changes the speed of individual motors to control pitch, roll, yaw and altitude, so rapid ESC response is an important part of stable flight-control performance.\u003c\/p\u003e\n\n\u003cp\u003eHobbywing's XRotor firmware is designed around these frequent throttle changes rather than simply adapting a conventional surface-model or airplane ESC control strategy.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_b2f3eead-1e93-4f27-a1df-31517298a548.png\" alt=\"Hobbywing XRotor 20A 4S multirotor ESC with rapid throttle response for drone motor control\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eSimple Setup with Preset Multirotor Settings\u003c\/h2\u003e\n\n\u003cp\u003eMost operating parameters are preset to simplify installation and setup. The primary user-adjustable parameter on the XRotor 20A is \u003cstrong\u003emotor Timing\u003c\/strong\u003e, which can be set to Intermediate or High using the transmitter throttle stick.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIntermediate Timing is the default setting\u003c\/strong\u003e and is suitable for most motors, generally providing a practical balance between efficiency and operating temperature. High Timing can increase motor RPM in applications that require it, but it can also increase motor temperature. Check motor and ESC temperatures carefully after changing the Timing setting.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/002_6ec79d21-e223-4cbd-8519-96a6e4ed1eb9.png\" alt=\"Hobbywing XRotor 20A ESC with preset multirotor settings and adjustable motor timing\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eOptimized for Multirotor Brushless Motors\u003c\/h2\u003e\n\n\u003cp\u003eHobbywing developed dedicated XRotor software to provide strong compatibility with the brushless motor types commonly used in multirotor aircraft, including disc-type multirotor motors.\u003c\/p\u003e\n\n\u003cp\u003eESC compatibility should still be evaluated as part of the complete propulsion system. Motor KV, propeller diameter and pitch, battery voltage, motor current draw, cooling and aircraft weight can all affect the electrical and thermal load placed on the ESC.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_5d7c29c6-a71d-4120-a43c-5afbf1445a32.png\" alt=\"Hobbywing XRotor 20A ESC compatibility with brushless multirotor and quadcopter motors\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eTwisted-Pair Throttle Cable Helps Reduce Signal Interference\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 20A uses a twisted-pair throttle signal cable designed to reduce interference and crosstalk during signal transmission.\u003c\/p\u003e\n\n\u003cp\u003eThis is particularly useful in multirotor installations where several ESCs, motors, high-current power wires and flight-control electronics may be installed close together. Reducing signal interference helps support stable and reliable communication between the flight controller and ESC.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/004_519d8ea7-43f1-4ebb-8484-996b1bf54b48.png\" alt=\"Hobbywing XRotor 20A ESC twisted pair throttle signal cable designed to reduce interference\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eLow-Resistance MOSFET Design\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 20A uses low-resistance MOSFETs together with a dedicated MOSFET drive design to provide efficient switching and dependable current handling in a compact multirotor ESC.\u003c\/p\u003e\n\n\u003cp\u003eThe ESC is rated for \u003cstrong\u003e20A continuous current and 30A peak current\u003c\/strong\u003e. These ratings are hardware limits rather than automatic targets for every installation. Actual operating current depends on the complete motor, propeller and battery combination as well as airflow and ambient temperature.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/005_a2e5c241-a64a-42ac-a862-c48115ac6608.png\" alt=\"Hobbywing XRotor 20A multirotor ESC with low resistance MOSFET design for efficient current handling\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eThrottle Signal Frequency up to 621Hz\u003c\/h2\u003e\n\n\u003cp\u003eThe Hobbywing XRotor 20A is compatible with various flight-control systems and supports throttle signal frequencies of up to \u003cstrong\u003e621Hz\u003c\/strong\u003e. This allows frequent throttle updates between the flight controller and ESC during multirotor operation.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7e6;padding:12px 14px;margin:12px 0 16px;border-left:4px solid #f0ad00;font-size:14px;line-height:1.65;\"\u003e\n  \u003cstrong\u003eImportant:\u003c\/strong\u003e Hobbywing notes that throttle signals above 500Hz are non-standard signals. Confirm that the selected flight controller and its throttle output configuration support the intended signal frequency before use.\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/006_b7db3070-4af4-43ef-80ed-05d1a4f3d0f1.png\" alt=\"Hobbywing XRotor 20A ESC supporting multirotor throttle signal frequency up to 621Hz\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eNo Built-In BEC\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 20A is a \u003cstrong\u003eno-BEC multirotor ESC\u003c\/strong\u003e. It does not provide a regulated power output for the flight controller, receiver or other onboard electronics.\u003c\/p\u003e\n\n\u003cp\u003eA suitable separate regulated power source, power module, UBEC or other flight-controller power arrangement must therefore be used where required by the aircraft's electrical system. Always verify the voltage and current requirements of the connected electronics before powering the aircraft.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eThrottle Range Calibration \u0026amp; Timing Programming\u003c\/h2\u003e\n\n\u003cp\u003eHobbywing recommends calibrating the throttle range when first using a new XRotor ESC or when changing to another transmitter or control setup.\u003c\/p\u003e\n\n\u003cp\u003eThe XRotor 20A can also be programmed through the transmitter throttle stick. Motor tones identify the available programming functions, including throttle calibration, Intermediate Timing and High Timing.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eFunction\u003c\/th\u003e\n      \u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eXRotor 20A\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eThrottle Range Calibration\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eTransmitter Programming\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eIntermediate Timing\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported \/ Default\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eHigh Timing\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eDEO\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eOneShot Throttle Mode\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eLED Color Programming\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eMotor Rotation Programming\u003c\/td\u003e\n      \u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#fff7e6;padding:12px 14px;margin:14px 0;font-size:14px;line-height:1.65;border-left:4px solid #f0ad00;\"\u003e\n  \u003cstrong\u003eSafety:\u003c\/strong\u003e Remove all propellers before throttle calibration, ESC programming or initial power-system testing. A multirotor brushless power system can start unexpectedly during setup if the throttle or signal configuration is incorrect.\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eBuilt-In Protection Functions\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 20A includes several protection functions intended to reduce the risk of abnormal motor operation when the ESC detects a problem.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eStart-Up Protection\u003c\/h3\u003e\n\u003cp\u003eIf the ESC cannot start the motor normally within approximately two seconds while throttle is being increased, motor output is stopped. Return the throttle stick to the bottom position before restarting. Possible causes include a poor ESC-to-motor connection or a blocked propeller or motor.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eOverload Protection\u003c\/h3\u003e\n\u003cp\u003eIf the load suddenly rises to an unusually high level, the ESC can cut motor power. Normal operation does not resume until the throttle is returned appropriately. The ESC can also attempt to restart if synchronization between the motor and ESC is lost.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eThrottle Signal Loss Protection\u003c\/h3\u003e\n\u003cp\u003eIf the ESC detects loss of the throttle signal for more than approximately 0.25 second, it cuts motor output. Corresponding output can resume after a normal throttle signal is received again.\u003c\/p\u003e\n\n\u003cp\u003eThese protection functions are safeguards rather than substitutes for correct motor, propeller, battery, wiring and ESC selection.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eDesigned for 330\/450 Class Multirotors\u003c\/h2\u003e\n\n\u003cp\u003eHobbywing identifies the XRotor 20A as a reference ESC for \u003cstrong\u003e330\/450 class quadcopters and multirotors\u003c\/strong\u003e. It is a practical direction for builds where the intended motor and propeller combination remains within the ESC's current limits when operating on a 3S or 4S LiPo battery.\u003c\/p\u003e\n\n\u003cp\u003eThe 330\/450 class recommendation is a reference rather than a universal fitment guarantee. Frame size alone does not determine ESC load. Two aircraft of the same size can produce significantly different current draw depending on motor KV, propeller size and pitch, battery voltage, aircraft weight and flight style.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat to Check Before Buying\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eUse only a 3S or 4S LiPo battery within the specified input range.\u003c\/li\u003e\n  \u003cli\u003eCheck the motor manufacturer's recommended ESC current requirement.\u003c\/li\u003e\n  \u003cli\u003eVerify actual motor current with the intended propeller and battery voltage.\u003c\/li\u003e\n  \u003cli\u003eConfirm there is enough mounting space for the selected 30901004 or 30901012 version.\u003c\/li\u003e\n  \u003cli\u003eProvide adequate airflow and cooling around the ESC.\u003c\/li\u003e\n  \u003cli\u003eCheck the current rating and polarity of the power-distribution system and battery connector.\u003c\/li\u003e\n  \u003cli\u003eConfirm the flight controller's throttle signal type and output frequency.\u003c\/li\u003e\n  \u003cli\u003ePlan a separate regulated power source for the flight controller and receiver because the ESC has no BEC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eHobbywing XRotor 20A Manual\u003c\/h2\u003e\n\n\u003cp\u003eThe official Hobbywing XRotor manual covers motor wiring, throttle-range calibration, Timing programming, the normal start-up process, protection functions and troubleshooting for the XRotor 20A ESC.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_XRotor_20A_ESC_Manual.pdf?v=1788856147\" target=\"_blank\" rel=\"noopener\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eDownload the Hobbywing XRotor 20A ESC Manual\u003c\/a\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe manual specifies the XRotor 20A for \u003cstrong\u003e3-4S LiPo operation\u003c\/strong\u003e, with a 20A continuous and 30A peak current rating and no built-in BEC.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat battery does the Hobbywing XRotor 20A support?\u003c\/h3\u003e\n\u003cp\u003eThe XRotor 20A supports \u003cstrong\u003e3-4S LiPo batteries\u003c\/strong\u003e. It should not be operated on 2S, 5S or 6S based on the specification for the XRotor 20A versions sold on this page.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan I use the XRotor 20A on 4S?\u003c\/h3\u003e\n\u003cp\u003eYes. The XRotor 20A is specified for both 3S and 4S LiPo operation. The complete motor and propeller combination must still remain within the ESC's current and thermal limits.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the current rating of the XRotor 20A?\u003c\/h3\u003e\n\u003cp\u003eIt is rated at 20A continuous current and 30A peak current.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the Hobbywing XRotor 20A have a BEC?\u003c\/h3\u003e\n\u003cp\u003eNo. The XRotor 20A does not include a BEC. The flight controller, receiver and other onboard electronics require a suitable separate regulated power source according to the aircraft's electrical design.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor 20A include a battery connector?\u003c\/h3\u003e\n\u003cp\u003eNo. The battery-side power wires are supplied without an input connector. Install a correctly rated connector or connect the ESC to an appropriate power-distribution system while observing correct polarity and current capability.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat motor connectors are installed?\u003c\/h3\u003e\n\u003cp\u003eThe three motor output wires use 3.5mm gold female connectors.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan I program the XRotor 20A?\u003c\/h3\u003e\n\u003cp\u003eYes. Throttle-range calibration and transmitter throttle-stick programming are supported. Motor Timing can be selected between Intermediate and High, with Intermediate Timing used as the default setting.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor 20A support OneShot?\u003c\/h3\u003e\n\u003cp\u003eNo. OneShot throttle mode is not supported on these XRotor 20A versions.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the difference between SKU 30901004 and 30901012?\u003c\/h3\u003e\n\u003cp\u003eBoth versions share the same principal 20A \/ 30A electrical rating, 3-4S LiPo input range, no-BEC configuration and intended 330\/450 class multirotor application. SKU \u003cstrong\u003e30901004\u003c\/strong\u003e measures approximately 50.0 × 21.6 × 12.0mm and weighs about 15g, while the \u003cstrong\u003e30901012 Wire Leaded version\u003c\/strong\u003e measures approximately 42.0 × 21.6 × 12.0mm and weighs about 18.5g.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eIs the XRotor 20A only for quadcopters?\u003c\/h3\u003e\n\u003cp\u003eThe 330\/450 class specification is given as a reference for quadcopters. Hobbywing's multirotor guidance can also extend to aircraft using other motor counts, but compatibility must be evaluated from the complete propulsion system rather than frame size alone.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan the XRotor 20A accept a 621Hz throttle signal?\u003c\/h3\u003e\n\u003cp\u003eYes. Hobbywing states that the ESC supports throttle signal frequencies up to 621Hz. Signals above 500Hz are classified by Hobbywing as non-standard, so flight-controller compatibility and configuration should be confirmed before use.\u003c\/p\u003e\n\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e A battery-side connector is not installed. Battery, motor, flight controller, receiver, external regulated power supply and other power-system components are not included unless otherwise stated in the product options.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eMore Hobbywing ESC Options\u003c\/h2\u003e\n\n\u003cp\u003eExplore more \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing ESCs\u003c\/a\u003e for other RC power-system applications, or browse our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/drone-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003edrone ESCs\u003c\/a\u003e for more multirotor and UAV electronic speed controllers.\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global \/ No Wire","offer_id":50344313225430,"sku":"30901004 GL","price":11.99,"currency_code":"USD","in_stock":true},{"title":"Global \/ With Wire","offer_id":50344313258198,"sku":"30901012 GL","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/B_d3fcbc1d-b57d-4cbe-b122-0ab4b5e27d76.png?v=1788858764"},{"product_id":"hobbywing-xrotor-40a-multirotor-esc","title":"Hobbywing XRotor 40A 6S BLDC Multirotor ESC – 2-6S, 40A\/60A for Drone","description":"\u003cdiv style=\"background:#f7f7f7;padding:14px 16px;margin:0 0 20px;border-left:4px solid #E60073;font-size:15px;line-height:1.7;\"\u003e\n  \u003cp style=\"margin:0 0 8px;\"\u003e\u003cstrong\u003eQuick Fit Check\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cul style=\"margin:0;padding-left:20px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eContinuous \/ Peak Current:\u003c\/strong\u003e 40A \/ 60A peak\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2-6S LiPo\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e No\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMotor Connectors:\u003c\/strong\u003e 3.5mm gold female connectors\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBattery-Side Connector:\u003c\/strong\u003e Not installed\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e Throttle calibration and Intermediate \/ High Timing\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTypical Application:\u003c\/strong\u003e 550\/650 class multirotors\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAvailable Asian-Market SKUs:\u003c\/strong\u003e 30901014 and 30901000\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eHobbywing XRotor 40A 6S BLDC ESC\u003c\/strong\u003e is a dedicated brushless electronic speed controller for multirotor and drone propulsion systems. Rated for \u003cstrong\u003e40A continuous current and 60A peak current\u003c\/strong\u003e, it supports a wide \u003cstrong\u003e2-6S LiPo\u003c\/strong\u003e operating range and is designed primarily for 550\/650 class multirotors when the selected motor and propeller load remain within its electrical and thermal limits.\u003c\/p\u003e\n\n\u003cp\u003eXRotor control software is developed specifically around the frequent motor-speed corrections required during multirotor flight. Key features include rapid throttle response, optimized compatibility with multirotor brushless motors, a twisted-pair throttle signal cable, low-resistance MOSFET design and support for throttle signal frequencies up to 621Hz.\u003c\/p\u003e\n\n\u003cp\u003eThis page combines two XRotor 40A variants: \u003cstrong\u003e30901014 Version A\u003c\/strong\u003e and \u003cstrong\u003e30901000 Version B\u003c\/strong\u003e. Their core electrical ratings, supported battery range, BEC configuration and intended application are the same, but their motor-output arrangement, dimensions and weight differ. Compare the two versions below before ordering.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eHobbywing XRotor 40A Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;width:34%;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eBattery\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e2-6S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNo BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eInput Power Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eRed 16AWG × 150mm × 1; Black 16AWG × 150mm × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eBattery-Side Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eMotor Connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e3.5mm gold female connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eThrottle Range Calibration\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eProgramming Method\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eTransmitter throttle-stick programming\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eTiming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eIntermediate \/ High\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eDEO\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eOneShot Mode\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eLED Color Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eMotor Rotation Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;\"\u003eTypical Application\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e550\/650 class multirotors\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003e Version A vs Version B\u003c\/h2\u003e\n\n\u003cp\u003eThe two XRotor 40A variants share the same 40A \/ 60A electrical rating, 2-6S LiPo range, no-BEC configuration and 550\/650 class reference application. The important difference is how the motor side of the ESC is configured.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eVersion A\u003c\/th\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eVersion B\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eStock Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e30901014\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e30901000\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eContinuous \/ Peak Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e40A \/ 60A\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e40A \/ 60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eLiPo Input\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e2-6S\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e2-6S\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMotor Output Wires\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eBlack 16AWG × 75mm × 3\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNo separate output wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eMotor Connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e3.5mm gold female connectors\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e3.5mm gold female connectors at ESC output\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e56 × 25.2 × 12.4mm\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e65.5 × 25.0 × 8.7mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eApprox. 32g\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eApprox. 28g\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eRapid Throttle Response for Multirotor Control\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 40A uses a dedicated control program developed for multirotor ESC operation. A multirotor flight controller continuously adjusts the speed of individual motors to control pitch, roll, yaw, altitude and aircraft stability, making predictable throttle response an important part of the propulsion system.\u003c\/p\u003e\n\n\u003cp\u003eHobbywing's XRotor firmware is designed around these repeated motor-speed corrections rather than simply adapting a conventional surface-model or airplane ESC control strategy.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_a20df5b3-d3f8-4fd8-9d91-498b4725e573.png\" alt=\"Hobbywing XRotor 40A 2-6S multirotor ESC with rapid throttle response for drone flight control\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eSimple Setup with Preset Multirotor Settings\u003c\/h2\u003e\n\n\u003cp\u003eMost XRotor 40A operating parameters are preset, helping simplify installation and setup. The primary adjustable parameter is \u003cstrong\u003emotor Timing\u003c\/strong\u003e, which can be selected between Intermediate and High through transmitter throttle-stick programming.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIntermediate Timing is the default setting\u003c\/strong\u003e and is suitable for most motors, generally providing a useful balance between efficiency and operating temperature. High Timing can increase motor RPM where required, but it can also increase motor temperature.\u003c\/p\u003e\n\n\u003cp\u003eAfter changing Timing, check both the motor and ESC carefully under the intended load before normal flight operation.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/002_9a4743aa-f24d-4d87-9705-63b4f343dc63.png\" alt=\"Hobbywing XRotor 40A ESC preset multirotor settings with adjustable motor timing\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eOptimized for Multirotor Brushless Motors\u003c\/h2\u003e\n\n\u003cp\u003eHobbywing developed XRotor software for the brushless motor characteristics commonly used in multirotor aircraft, including disc-type motors. This helps provide suitable control behavior as the ESC responds continuously to commands from the flight controller.\u003c\/p\u003e\n\n\u003cp\u003eCompatibility still needs to be evaluated as a complete propulsion system. Motor KV, propeller diameter and pitch, LiPo voltage, aircraft weight and cooling can all significantly affect motor current and ESC temperature.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_ca68c9ab-1af4-4afd-bbc5-79e6f8e6705a.png\" alt=\"Hobbywing XRotor 40A ESC optimized for brushless multirotor and drone motors\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eTwisted-Pair Throttle Cable Helps Reduce Signal Interference\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 40A uses a \u003cstrong\u003etwisted-pair throttle signal cable\u003c\/strong\u003e designed to reduce crosstalk and interference during signal transmission.\u003c\/p\u003e\n\n\u003cp\u003eThis is useful in multirotor installations where several ESCs, high-current battery wires, motors, power-distribution components and flight-control electronics can be positioned close together. Reducing interference helps support reliable communication between the flight controller and ESC.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/004_74e1555f-04e9-4289-b91c-6bddc19375fd.png\" alt=\"Hobbywing XRotor 40A ESC twisted pair throttle signal cable for reduced signal interference\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eLow-Resistance MOSFET Design\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 40A combines low-resistance MOSFETs with a dedicated MOSFET drive design to provide efficient switching and dependable current handling for multirotor operation.\u003c\/p\u003e\n\n\u003cp\u003eThe ESC is rated for \u003cstrong\u003e40A continuous current and 60A peak current\u003c\/strong\u003e. These figures define the ESC's electrical capability rather than a recommended current target for every aircraft.\u003c\/p\u003e\n\n\u003cp\u003eActual load depends on battery voltage, motor KV, propeller size and pitch, aircraft weight, airflow and ambient temperature. Verify real current draw with the intended propulsion setup and maintain suitable electrical and thermal margin.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/005_7c789cae-9689-47c7-88de-648ed16591b6.png\" alt=\"Hobbywing XRotor 40A multirotor ESC with low resistance MOSFET design for efficient current handling\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eThrottle Signal Frequency up to 621Hz\u003c\/h2\u003e\n\n\u003cp\u003eThe Hobbywing XRotor 40A is compatible with various flight-control systems and supports throttle signal frequencies of up to \u003cstrong\u003e621Hz\u003c\/strong\u003e, allowing frequent throttle commands as the flight controller manages motor speed during multirotor operation.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7e6;padding:12px 14px;margin:12px 0 16px;border-left:4px solid #f0ad00;font-size:14px;line-height:1.65;\"\u003e\n\u003cstrong\u003eThrottle Signal Note:\u003c\/strong\u003e Hobbywing states that throttle signals above 500Hz are non-standard signals. Confirm that the selected flight controller and its throttle-output configuration support the intended frequency before use.\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/006_2605b252-fe31-4d96-9739-41ecb64c3d33.png\" alt=\"Hobbywing XRotor 40A ESC supporting throttle signal frequency up to 621Hz\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eNo Built-In BEC\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor 40A is a \u003cstrong\u003eno-BEC multirotor ESC\u003c\/strong\u003e. It controls the brushless motor but does not provide regulated power for the flight controller, receiver or other onboard electronics.\u003c\/p\u003e\n\n\u003cp\u003eA separate regulated power module, UBEC, power-distribution system or another appropriate power source must therefore be used where required by the aircraft's electrical architecture.\u003c\/p\u003e\n\n\u003cp\u003eAlways verify the voltage and current requirements of the flight controller and other onboard electronics before connecting power.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eThrottle Range Calibration \u0026amp; Timing Programming\u003c\/h2\u003e\n\n\u003cp\u003eThrottle-range calibration should be performed when first installing a new XRotor ESC or when changing to another transmitter or control setup.\u003c\/p\u003e\n\n\u003cp\u003eThe XRotor 40A can also be programmed using the transmitter throttle stick and motor warning tones. Available programming functions include throttle calibration, Intermediate Timing and High Timing.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eFunction\u003c\/th\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eXRotor 40A\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eThrottle Range Calibration\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eTransmitter Stick Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eIntermediate Timing\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported \/ Default\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eHigh Timing\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSupported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eDEO\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eOneShot Mode\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eLED Color Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eMotor Rotation Programming\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eNot supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#fff7e6;padding:12px 14px;margin:14px 0;border-left:4px solid #f0ad00;font-size:14px;line-height:1.65;\"\u003e\n\u003cstrong\u003eSafety:\u003c\/strong\u003e Remove all propellers before throttle calibration, ESC programming or initial motor testing. Multirotor power systems can start unexpectedly if the throttle or signal configuration is incorrect.\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eBuilt-In Protection Functions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eStart-Up Protection\u003c\/h3\u003e\n\n\u003cp\u003eIf the ESC cannot start the motor normally within approximately two seconds while throttle is increased, motor output is stopped. Return the throttle to the bottom position before attempting another start. Possible causes include a poor motor connection, blocked propeller or other mechanical obstruction.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eOverload Protection\u003c\/h3\u003e\n\n\u003cp\u003eIf the load suddenly increases to an unusually high level, the ESC can cut motor output. Normal operation will not resume until the throttle is returned appropriately. The ESC can also attempt to restart when synchronization between the motor and ESC is lost.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eThrottle Signal Loss Protection\u003c\/h3\u003e\n\n\u003cp\u003eIf the ESC detects loss of throttle signal for more than approximately \u003cstrong\u003e0.25 second\u003c\/strong\u003e, it cuts motor output. Corresponding output can resume once a normal signal is received again.\u003c\/p\u003e\n\n\u003cp\u003eProtection functions provide an additional safeguard, but they do not replace correct battery, motor, propeller, ESC, wiring and cooling selection.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eDesigned for 550\/650 Class Multirotors\u003c\/h2\u003e\n\n\u003cp\u003eHobbywing identifies the XRotor 40A as a reference ESC for \u003cstrong\u003e550\/650 class multirotors and quadcopters\u003c\/strong\u003e. Compared with the XRotor 20A, the 40A model moves into a higher-current class and supports a broader 2-6S LiPo voltage range.\u003c\/p\u003e\n\n\u003cp\u003eFrame size is only a reference. Two 550 or 650 class aircraft can place very different electrical loads on their ESCs depending on motor KV, propeller diameter and pitch, LiPo voltage, aircraft mass and flight style.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat to Check Before Buying\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eConfirm that the intended battery is within the 2-6S LiPo input range.\u003c\/li\u003e\n\u003cli\u003eCheck the motor manufacturer's ESC recommendation.\u003c\/li\u003e\n\u003cli\u003eVerify actual motor current with the intended battery and propeller.\u003c\/li\u003e\n\u003cli\u003eMaintain appropriate current and thermal margin below the ESC limits.\u003c\/li\u003e\n\u003cli\u003eChoose between 30901014 and 30901000 according to motor-wire layout.\u003c\/li\u003e\n\u003cli\u003eConfirm mounting dimensions and wire clearance for the selected version.\u003c\/li\u003e\n\u003cli\u003eProvide adequate airflow and cooling around the ESC.\u003c\/li\u003e\n\u003cli\u003eCheck battery connector and power-distribution current capability.\u003c\/li\u003e\n\u003cli\u003eConfirm flight-controller throttle signal compatibility.\u003c\/li\u003e\n\u003cli\u003eProvide a separate regulated flight-controller power source because the ESC has no BEC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eHobbywing XRotor 40A Manual\u003c\/h2\u003e\n\n\u003cp\u003eThe official Hobbywing XRotor multirotor ESC manual covers wiring, throttle-range calibration, Intermediate and High Timing programming, normal start-up, protection behavior and troubleshooting for the XRotor 40A.\u003c\/p\u003e\n\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_XRotor_20A_ESC_Manual.pdf?v=1788856147\" target=\"_blank\" rel=\"noopener\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eDownload the Hobbywing XRotor 40A ESC Manual\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat battery does the Hobbywing XRotor 40A support?\u003c\/h3\u003e\n\u003cp\u003eThe XRotor 40A supports \u003cstrong\u003e2-6S LiPo batteries\u003c\/strong\u003e. The motor and propeller combination must also be appropriate for the selected battery voltage and remain within the ESC's current and thermal limits.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan the XRotor 40A run on 6S?\u003c\/h3\u003e\n\u003cp\u003eYes. The XRotor 40A is rated for up to 6S LiPo operation. Current draw generally changes when battery voltage changes, so a motor and propeller combination that is suitable on a lower cell count should not automatically be assumed safe on 6S.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the current rating of the XRotor 40A?\u003c\/h3\u003e\n\u003cp\u003eThe ESC is rated for 40A continuous current and 60A peak current.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor 40A have a BEC?\u003c\/h3\u003e\n\u003cp\u003eNo. The XRotor 40A has no built-in BEC. A suitable separate regulated power arrangement is required for the flight controller, receiver and other onboard electronics where applicable.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor 40A include a battery connector?\u003c\/h3\u003e\n\u003cp\u003eNo. The red and black input power wires are supplied without a battery-side connector. Use an appropriately rated connector or power-distribution system and verify polarity before powering the aircraft.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat motor connectors does the XRotor 40A use?\u003c\/h3\u003e\n\u003cp\u003eBoth Asian-market versions use 3.5mm gold female motor connectors. Version A, SKU 30901014, provides three 75mm 16AWG motor output leads, while Version B, SKU 30901000, has no separate motor output wires and places the connectors at the ESC output.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the difference between 30901014 and 30901000?\u003c\/h3\u003e\n\u003cp\u003eBoth share the same 40A \/ 60A electrical rating, 2-6S LiPo input range and no-BEC architecture. SKU \u003cstrong\u003e30901014 Asian Version A\u003c\/strong\u003e has three 75mm motor output wires and measures approximately 56 × 25.2 × 12.4mm at about 32g. SKU \u003cstrong\u003e30901000 Asian Version B\u003c\/strong\u003e has no separate motor output wires and measures approximately 65.5 × 25.0 × 8.7mm at about 28g.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan the XRotor 40A be programmed?\u003c\/h3\u003e\n\u003cp\u003eYes. Throttle-range calibration and transmitter throttle-stick programming are supported. Motor Timing can be selected between Intermediate and High, with Intermediate Timing used as the default setting.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor 40A support OneShot?\u003c\/h3\u003e\n\u003cp\u003eNo. Hobbywing lists OneShot Mode as not supported on these XRotor 40A variants.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan the XRotor 40A accept a 621Hz throttle signal?\u003c\/h3\u003e\n\u003cp\u003eYes. Hobbywing states that it supports throttle signal frequencies up to 621Hz. Signals above 500Hz are identified by Hobbywing as non-standard, so flight-controller compatibility and configuration should be verified before use.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eIs the 550\/650 class recommendation a guaranteed fit?\u003c\/h3\u003e\n\u003cp\u003eNo. It is a reference application rather than a universal fitment guarantee. Always verify battery voltage, motor current, propeller load, cooling, wiring and mounting requirements for the complete propulsion system.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Battery, battery-side connector, motor, propeller, flight controller, external regulated power supply and other power-system components are not included unless otherwise stated in the product options.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eMore Hobbywing XRotor \u0026amp; Drone ESC Options\u003c\/h2\u003e\n\n\u003cp\u003eCompare this model with other \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-xrotor-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing XRotor ESCs\u003c\/a\u003e as the CNHL XRotor range expands across different current and voltage classes.\u003c\/p\u003e\n\n\u003cp\u003eYou can also browse our wider \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/drone-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003edrone ESC collection\u003c\/a\u003e for multirotor and UAV electronic speed controllers, or explore all \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing ESCs\u003c\/a\u003e for other RC power-system applications.\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global \/ No Wire","offer_id":50361913639126,"sku":"30901000 GL","price":16.99,"currency_code":"USD","in_stock":true},{"title":"Global \/ With Wire","offer_id":50361913671894,"sku":"30901014 GL","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/A_0826bcb7-f21d-426b-a639-e5b2f3f23527.png?v=1788941249"},{"product_id":"hobbywing-xrotor-pro-40a-esc-dual-pack","title":"Hobbywing XRotor PRO 40A ESC Dual Pack – 3–6S Multirotor Brushless ESC for Drone","description":"\u003cp\u003eThe \u003cstrong\u003eHobbywing XRotor PRO 40A ESC Dual Pack\u003c\/strong\u003e is a purpose-built 3–6S brushless ESC solution for multirotors, including 550\/650-class quadcopter applications. Each package contains \u003cstrong\u003etwo XRotor PRO 40A ESCs\u003c\/strong\u003e, with each ESC rated for 40A continuous current and 60A peak current.\u003c\/p\u003e\n\n\u003cp\u003eTwo versions are available. \u003cstrong\u003eVersion A (SKU 30902042)\u003c\/strong\u003e uses conventional motor output wires, while \u003cstrong\u003eVersion B \/ COB (SKU 30902041)\u003c\/strong\u003e uses gold-plated motor connectors mounted directly to the ESC circuit board. Both versions feature Hobbywing's DEO driving-efficiency technology, rapid throttle response, automatic timing adjustment and a dedicated multirotor control program.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f7;padding:12px 15px;margin:18px 0;border-left:4px solid #E60073;font-size:14px;line-height:1.7;\"\u003e\n\u003cp style=\"margin:0 0 6px;\"\u003e\u003cstrong\u003eQuick Fit Check\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"margin:0;padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e 2 × XRotor PRO 40A ESCs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 3–6S LiPo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent:\u003c\/strong\u003e 40A continuous \/ 60A peak (10 seconds)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e No built-in BEC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Multirotors \/ 550–650 class quadcopters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersion A:\u003c\/strong\u003e Motor output wires\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersion B \/ COB:\u003c\/strong\u003e Motor connectors mounted directly on the ESC PCB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eHobbywing XRotor PRO 40A Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:14px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;width:34%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eXRotor PRO 40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003ePackage Quantity\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e2 ESCs per pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e40A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e60A \/ 10 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eBattery Input\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e3–6S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eBEC\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eNo built-in BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eProgrammable Item\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eDEO – ON \/ OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eThrottle Signal Frequency\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eUp to 621Hz*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eRecommended Application\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eMultirotors \/ 550–650 class quadcopters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eVersion A Size\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e66 × 21.8 × 11mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eVersion A Weight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eApprox. 50g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eVersion B \/ COB Size\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e73.5 × 21.8 × 11mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eVersion B \/ COB Weight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eApprox. 45g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eStock Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e30902042 – Version A\u003cbr\u003e30902041 – Version B \/ COB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"font-size:13px;color:#666;margin:8px 0 18px;\"\u003e*Hobbywing specifies throttle signal support up to 621Hz and notes that throttle signals above 500Hz are non-standard signals.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eVersion A vs Version B (COB)\u003c\/h2\u003e\n\n\u003cp\u003eThe two XRotor PRO 40A versions share the same basic electrical rating and 3–6S multirotor application, but use different motor-connection layouts.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:14px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;text-align:left;\"\u003eFeature\u003c\/th\u003e\n\u003cth style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;text-align:left;\"\u003eVersion A – 30902042\u003c\/th\u003e\n\u003cth style=\"background:#E60073;color:#fff;padding:10px;border:1px solid #ddd;text-align:left;\"\u003eVersion B \/ COB – 30902041\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eESCs per Pack\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e2\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eMotor Connection\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003eWire leaded\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003eConnector On Board (COB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eMotor Output Wires\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eContinuous \/ Peak\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e40A \/ 60A\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e40A \/ 60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eLiPo\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e3–6S\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e3–6S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e66 × 21.8 × 11mm\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003e73.5 × 21.8 × 11mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;font-weight:700;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003eApprox. 50g\u003c\/td\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;background:#f2f2f2;\"\u003eApprox. 45g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eVersion A\u003c\/strong\u003e is the conventional wire-leaded configuration. It provides motor output wires from the ESC, making it suitable for installations where the wiring layout needs more flexibility.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eVersion B (COB – Connector On Board)\u003c\/strong\u003e removes the motor output leads and instead uses gold-plated connectors mounted directly on the ESC circuit board. This creates a different installation layout and can reduce unnecessary motor-side wiring where the airframe and motor arrangement suit the COB configuration.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7fb;padding:12px 15px;margin:18px 0;border-left:4px solid #E60073;font-size:14px;line-height:1.7;\"\u003e\n\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Version A and Version B are not simply different cosmetic versions. Check your motor wiring layout, available mounting space and preferred motor connection arrangement before selecting a variant.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eOpen Cooling Fin for Better Heat Dissipation\u003c\/h2\u003e\n\n\u003cp\u003e\u003cimg style=\"width: 100%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/005_627df8a5-0f49-473a-bc11-ad7d1d354893.png?v=1788945085\" alt=\"Hobbywing XRotor Pro 40A ESC open cooling fin aluminum heatsink for better heat dissipation\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe XRotor PRO 40A uses an aluminum finned heatsink combined with a heat-conductive slotted structure. The open-fin design increases the available heat-dissipation area and helps move heat away from the ESC during demanding multirotor operation.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eDEO Driving Efficiency Optimization\u003c\/h2\u003e\n\n\u003cp\u003e\u003cimg style=\"width: 100%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/004_a5d882d6-0fdc-4492-be25-af10c21be16e.png?v=1788945032\" alt=\"Hobbywing XRotor Pro 40A ESC DEO driving efficiency optimization for lower temperature and smoother throttle\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eHobbywing's \u003cstrong\u003eDEO (Driving Efficiency Optimization)\u003c\/strong\u003e technology is designed to improve driving efficiency and throttle linearity while reducing ESC operating temperature.\u003c\/p\u003e\n\n\u003cp\u003eWith DEO enabled, the ESC automatically brakes the motor when throttle is reduced, allowing motor speed to fall more quickly. On a multirotor, this faster response can contribute to more precise movement and improved flight-direction stability.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eRapid Throttle Response for Multirotors\u003c\/h2\u003e\n\n\u003cp\u003e\u003cimg style=\"width: 100%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_41606643-f996-4cfd-acf9-24198df98f6a.png?v=1788945131\" alt=\"Hobbywing XRotor Pro 40A multirotor ESC special core program for rapid throttle response\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eA dedicated multirotor control program gives the XRotor PRO 40A rapid throttle response for situations such as hovering corrections and fast changes in motor speed.\u003c\/p\u003e\n\n\u003cp\u003eThe ESC supports throttle signal frequencies up to \u003cstrong\u003e621Hz\u003c\/strong\u003e, helping it work with a range of flight-control systems. Hobbywing notes that throttle signals above 500Hz are non-standard, so flight-controller configuration should always be checked before use.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eAutomatic Timing \u0026amp; Preset Parameters\u003c\/h2\u003e\n\n\u003cp\u003e\u003cimg style=\"width: 100%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/002_2440ec7f-2ebe-48d5-ab64-9bf3af27e05a.png?v=1788945170\" alt=\"Hobbywing XRotor Pro 40A ESC automatic timing adjustment and preset parameters for multirotor setup\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe XRotor PRO platform uses intelligent default settings and automatic timing adjustment to simplify multirotor setup across a broad range of supported applications.\u003c\/p\u003e\n\n\u003cp\u003eRather than requiring extensive ESC parameter configuration, the XRotor PRO 40A keeps the user-adjustable programming focused on the \u003cstrong\u003eDEO ON\/OFF setting\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eCompact Protective Design\u003c\/h2\u003e\n\n\u003cp\u003e\u003cimg style=\"width: 100%; height: auto;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_a0673c12-b152-41cb-acc2-ae61c0ba026a.png?v=1788944948\" alt=\"Hobbywing XRotor Pro 40A compact slim ESC design for multirotor installation\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe slim housing combines a protective plastic structure with the open heatsink design, giving the ESC a compact form for multirotor installations where electronics space and cable routing matter.\u003c\/p\u003e\n\n\u003cp\u003eBecause Version A and Version B use different output layouts and have different overall lengths, always compare the selected variant's dimensions with the available mounting area before installation.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eNo Built-In BEC – Receiver Power Required\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor PRO 40A is an \u003cstrong\u003eOPTO-style ESC with no built-in BEC\u003c\/strong\u003e. It therefore does not provide receiver or flight-controller power through an integrated BEC.\u003c\/p\u003e\n\n\u003cp\u003eYour installation must use an appropriate external power supply arrangement for the receiver and related electronics. Follow the wiring arrangement specified for your flight controller, receiver and power system rather than assuming the ESC throttle lead provides receiver power.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eBuilt-In Protection Functions\u003c\/h2\u003e\n\n\u003cp\u003eThe XRotor PRO 40A includes protection functions intended to reduce the risk of damage or uncontrolled operation when abnormal conditions are detected:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart-up protection:\u003c\/strong\u003e shuts down motor output if the motor cannot start normally within approximately two seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-load protection:\u003c\/strong\u003e cuts output if the load suddenly rises to an abnormally high level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrottle signal loss protection:\u003c\/strong\u003e cuts output when throttle signal loss is detected for more than approximately 0.25 second.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eProtection functions are not a substitute for correct component selection, installation, cooling and power-system setup.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eXRotor PRO 40A Manual \u0026amp; Setup\u003c\/h2\u003e\n\n\u003cp\u003eThrottle-range calibration should be performed when using a new XRotor brushless ESC or changing to another transmitter. Hobbywing also recommends removing the propellers before calibration or programming for safety.\u003c\/p\u003e\n\n\u003cp\u003eFor wiring diagrams, throttle calibration, DEO programming, start-up procedures, protection functions and troubleshooting, download the \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_XRotor_Pro_40A_50A_ESC_Manual.pdf?v=1788942877\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing XRotor PRO 40A \u0026amp; 50A ESC Manual\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eWhat to Check Before Buying\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eConfirm that your multirotor power system is within the \u003cstrong\u003e3–6S LiPo\u003c\/strong\u003e input range.\u003c\/li\u003e\n\u003cli\u003eConfirm that the expected continuous and peak motor current remain within the ESC's electrical limits.\u003c\/li\u003e\n\u003cli\u003eChoose the correct \u003cstrong\u003eVersion A wire-leaded\u003c\/strong\u003e or \u003cstrong\u003eVersion B COB\u003c\/strong\u003e motor connection layout.\u003c\/li\u003e\n\u003cli\u003eCheck the physical ESC dimensions and available mounting space.\u003c\/li\u003e\n\u003cli\u003eRemember that the XRotor PRO 40A has \u003cstrong\u003eno built-in BEC\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eConfirm your receiver \/ flight-controller power arrangement separately.\u003c\/li\u003e\n\u003cli\u003eProvide adequate airflow and cooling around the ESC.\u003c\/li\u003e\n\u003cli\u003eCheck motor, connector and wiring requirements before soldering or installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eHow many ESCs are included?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eTwo ESCs are included.\u003c\/strong\u003e Both SKU 30902042 and SKU 30902041 are XRotor PRO 40A Dual Packs containing 2 × ESCs.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the difference between XRotor PRO 40A Version A and Version B?\u003c\/h3\u003e\n\u003cp\u003eVersion A uses motor output wires. Version B is the COB (Connector On Board) configuration, with gold-plated motor connectors mounted directly to the ESC circuit board and no conventional motor output leads.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor PRO 40A support 6S LiPo?\u003c\/h3\u003e\n\u003cp\u003eYes. Hobbywing specifies the XRotor PRO 40A for \u003cstrong\u003e3–6S LiPo\u003c\/strong\u003e power systems.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor PRO 40A have a BEC?\u003c\/h3\u003e\n\u003cp\u003eNo. The XRotor PRO 40A does not have a built-in BEC, so receiver and flight-control electronics require an appropriate separate power supply arrangement.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is DEO technology?\u003c\/h3\u003e\n\u003cp\u003eDEO stands for \u003cstrong\u003eDriving Efficiency Optimization\u003c\/strong\u003e. With DEO enabled, the ESC can actively brake the motor when throttle is reduced, helping the motor slow more quickly while improving throttle linearity, driving efficiency and ESC operating temperature.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eIs the XRotor PRO 40A designed for airplanes or RC cars?\u003c\/h3\u003e\n\u003cp\u003eThe XRotor PRO 40A is specifically developed as a \u003cstrong\u003emultirotor ESC\u003c\/strong\u003e. Hobbywing lists 550\/650-class quadcopters as its applicable multirotor class.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan I program motor rotation for 3D flight on the XRotor PRO 40A?\u003c\/h3\u003e\n\u003cp\u003eThe XRotor PRO 40A manual lists \u003cstrong\u003eDEO ON\/OFF\u003c\/strong\u003e as its programmable item. Motor-rotation DIP-switch control described in the same manual applies to the XRotor PRO 50A, so it should not be assumed to be a programmable function of the PRO 40A.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e2 × Hobbywing XRotor PRO 40A ESCs\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe exact motor-side configuration depends on the selected Version A or Version B \/ COB variant.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eExplore More Drone \u0026amp; Hobbywing ESCs\u003c\/h2\u003e\n\n\u003cp\u003eBuilding or maintaining another multirotor power system? Browse our \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/drone-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003edrone ESCs\u003c\/a\u003e for additional electronic speed controller options, or explore the wider \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing ESC collection\u003c\/a\u003e for RC aircraft, cars, boats and other applications.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f7;padding:12px 15px;margin:20px 0 0;border-left:4px solid #E60073;font-size:14px;line-height:1.7;\"\u003e\n\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eSafety Notice:\u003c\/strong\u003e Brushless multirotor power systems can cause serious injury if incorrectly installed or operated. Read the Hobbywing manual before use, verify polarity and wiring before connecting a battery, and remove propellers when performing throttle calibration or ESC programming.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global \/ No Wire","offer_id":50361951781078,"sku":"30902041 GL","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Global \/ With Wire","offer_id":50361951813846,"sku":"30902042 GL","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/20260909173602_52_298.jpg?v=1788946671"},{"product_id":"hobbywing-xrotor-pro-50a-wire-leaded-esc-dual-pack","title":"Hobbywing XRotor PRO 50A Wire Leaded ESC Dual Pack – 4-6S, 50A\/70A for Drone","description":"\u003cp style=\"font-size:16px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003e\u003cstrong\u003eThe Hobbywing XRotor PRO 50A Wire Leaded ESC Dual Pack includes two dedicated multirotor brushless ESCs for 4-6S LiPo power systems.\u003c\/strong\u003e Each ESC is rated for 50A continuous current and 70A peak current for 10 seconds, with no built-in BEC.\u003c\/p\u003e\n\n\u003cp style=\"font-size:16px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe XRotor PRO 50A adds several features beyond a basic multirotor ESC, including \u003cstrong\u003eDEO Driving Efficiency Optimization, built-in red\/green navigation LEDs, automatic timing, rapid throttle response and a four-position DIP-switch control system\u003c\/strong\u003e for LED status, LED color, DEO status and motor rotation.\u003c\/p\u003e\n\n\u003cp style=\"font-size:16px;line-height:1.75;margin:0;color:#333;\"\u003eThis is the \u003cstrong\u003eWire Leaded version\u003c\/strong\u003e, with motor output wires rather than the Connector-On-Board layout used on some other XRotor models. SKU \u003cstrong\u003e30902052\u003c\/strong\u003e is supplied as a \u003cstrong\u003eDual Pack containing 2 × XRotor PRO 50A ESCs\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f7;padding:14px 16px;margin:20px 0;border-left:4px solid #E60073;font-size:14px;line-height:1.7;\"\u003e\n  \u003cp style=\"margin:0 0 7px;\"\u003e\u003cstrong\u003eQuick Fit Check\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cul style=\"margin:0;padding-left:20px;\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e 2 × XRotor PRO 50A ESCs\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eContinuous Current:\u003c\/strong\u003e 50A per ESC\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePeak Current:\u003c\/strong\u003e 70A per ESC \/ 10 seconds\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 4-6S LiPo\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e No\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMotor Side:\u003c\/strong\u003e Wire Leaded with 3.5mm connectors\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProgrammable Controls:\u003c\/strong\u003e LED status, LED color, DEO and motor rotation\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStock Number:\u003c\/strong\u003e 30902052\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eHobbywing XRotor PRO 50A Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 20px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;width:34%;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eXRotor PRO 50A Wire Leaded ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003ePackage Quantity\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e\u003cstrong\u003e2 ESCs per pack\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e50A per ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003ePeak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e70A per ESC \/ 10 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eBattery Input\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e4-6S LiPo\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eBEC\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eNo built-in BEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eMotor Connection\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eWire Leaded with 3.5mm connectors × 3\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eThrottle Signal Frequency\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eUp to 621Hz*\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eLED Control\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eON \/ OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eLED Color\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eRed \/ Green\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eDEO\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eON \/ OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eMotor Rotation Setting\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eCW \/ CCW\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eDimensions\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e48 × 30 × 15.5mm per ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003eApprox. 56g per ESC\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:700;padding:10px;border:1px solid #ddd;\"\u003eStock Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px;border:1px solid #ddd;\"\u003e30902052\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"font-size:13px;line-height:1.6;color:#666;margin:8px 0 18px;\"\u003e*Hobbywing states that throttle signal frequencies above 500Hz are non-standard signals. Confirm flight-controller compatibility before using unusually high signal frequencies.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eDIP-Switch Control for LED, DEO \u0026amp; Motor Rotation\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe underside of the XRotor PRO 50A features four DIP switches that provide direct hardware control over several important ESC functions. This makes key setup changes accessible without requiring a separate programming device.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;margin:12px 0 18px;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;line-height:1.55;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eDIP Switch\u003c\/th\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eON\u003c\/th\u003e\n\u003cth style=\"background:#E60073;color:#fff;font-weight:700;padding:9px 12px;border:1px solid #ddd;text-align:left;\"\u003eOFF \/ Alternate Position\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSwitch 1 – LED Status\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eLED ON\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eLED OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSwitch 2 – LED Color\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eRed\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eGreen\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSwitch 3 – DEO\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eDEO ON\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eDEO OFF\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eSwitch 4 – Motor Rotation\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eCW\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:9px 12px;border:1px solid #ddd;\"\u003eCCW\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/005_f98dfa9e-4d6f-4619-b188-817240f6b515.png\" alt=\"Hobbywing XRotor Pro 50A ESC DIP switch control for LED DEO and motor rotation\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"font-size:14px;line-height:1.7;color:#555;\"\u003eThe manual describes CW \/ CCW as a selectable motor-rotation setting. It should not be interpreted as an automatic in-flight reversing function unless the complete flight-control system is specifically configured for that behavior.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eBuilt-In Red \u0026amp; Green Navigation LEDs\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe XRotor PRO 50A includes high-visibility LEDs directly on the ESC. The color can be selected between \u003cstrong\u003ered and green\u003c\/strong\u003e using the DIP switch, and the LED can also be switched completely on or off.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eOn a multirotor, these built-in LEDs can reduce the need to add separate navigation lights and extra wiring purely for orientation lighting.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/004_1467e541-4f23-4070-bb71-0a4d13f10b69.png\" alt=\"Hobbywing XRotor Pro 50A ESC built in red and green navigation LEDs for multirotors\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eDEO Driving Efficiency Optimization\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003e\u003cstrong\u003eDEO (Driving Efficiency Optimization)\u003c\/strong\u003e is one of the XRotor PRO platform's key multirotor-control technologies. With DEO enabled, the ESC actively brakes the motor when throttle is reduced so motor speed can fall more rapidly.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThis faster deceleration can improve throttle linearity and help the aircraft respond more directly during rapid attitude changes. Hobbywing also identifies improved driving efficiency and lower ESC operating temperature as benefits of DEO.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/003_49692c31-e6e8-4867-ba0b-c84829bd323f.png\" alt=\"Hobbywing XRotor Pro 50A ESC DEO driving efficiency optimization with active braking and lower temperature\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eAutomatic Timing \u0026amp; Intelligent Default Settings\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe XRotor PRO 50A uses intelligent default parameters and automatic timing adjustment to simplify the initial setup of supported multirotor power systems.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThis reduces the need for extensive ESC tuning while still allowing the user to control the functions that matter most on the PRO 50A through its DIP switches.\u003c\/p\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/002_208769fe-0bc3-418b-b70e-a2396ece7b5f.png\" alt=\"Hobbywing XRotor Pro 50A ESC automatic timing and intelligent preset parameters for easier setup\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eRapid Throttle Response for Multirotor Flight\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eA dedicated core program for multirotor controllers gives the XRotor PRO 50A fast throttle response for the repeated motor-speed changes required during hovering, attitude correction and directional control.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe ESC is compatible with various flight-control systems and supports throttle signal frequencies up to \u003cstrong\u003e621Hz\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff7e6;padding:12px 14px;margin:12px 0 16px;border-left:4px solid #f0ad00;font-size:14px;line-height:1.65;\"\u003e\n  \u003cstrong\u003eSignal Note:\u003c\/strong\u003e Hobbywing identifies throttle signals above 500Hz as non-standard signals. Confirm the selected flight controller and output configuration before using higher signal frequencies.\n\u003c\/div\u003e\n\n\u003cdiv style=\"text-align:left;margin:14px 0 20px;\"\u003e\n  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/001_0bc552e6-5636-49b1-86ba-96152986321a.png\" alt=\"Hobbywing XRotor Pro 50A multirotor ESC rapid throttle response for stable flight control\" width=\"1280\" height=\"768\" style=\"max-width:100%;height:auto;display:block;\"\u003e\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eWire Leaded Motor Connection\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eSKU 30902052 is the \u003cstrong\u003eWire Leaded XRotor PRO 50A\u003c\/strong\u003e. The motor side uses output wires with 3.5mm connectors rather than a Connector-On-Board motor layout.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eThis gives the installer flexibility when positioning the ESC relative to the motor, but motor wire routing, connector clearance and available airframe space should still be checked before installation.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eNo Built-In BEC – Separate Receiver Power Required\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe XRotor PRO 50A has \u003cstrong\u003eno built-in BEC\u003c\/strong\u003e. Its throttle lead therefore does not provide regulated receiver or flight-controller power.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eUse an appropriate external UBEC, regulated power module or other suitable receiver \/ flight-controller power source according to the electrical architecture of your multirotor.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eThrottle Range Calibration\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThrottle-range calibration should be performed when using a new XRotor brushless ESC or when changing to another transmitter.\u003c\/p\u003e\n\n\u003col style=\"font-size:15px;line-height:1.75;color:#333;\"\u003e\n\u003cli\u003eTurn on the transmitter and move the throttle stick to the top position.\u003c\/li\u003e\n\u003cli\u003eEnsure the transmitter and receiver are correctly bound, then connect power to the ESC and receiver system.\u003c\/li\u003e\n\u003cli\u003eAfter the motor emits two short confirmation beeps, move the throttle stick to the bottom position within approximately three seconds.\u003c\/li\u003e\n\u003cli\u003eThe throttle range is then calibrated.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003cdiv style=\"background:#fff7e6;padding:12px 14px;margin:14px 0;border-left:4px solid #f0ad00;font-size:14px;line-height:1.65;\"\u003e\n  \u003cstrong\u003eSafety:\u003c\/strong\u003e Remove all propellers before throttle calibration, ESC setup or initial motor testing.\n\u003c\/div\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eBuilt-In Protection Functions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eStart-Up Protection\u003c\/h3\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eIf the ESC cannot start the motor normally within approximately two seconds as throttle increases, it shuts down motor output. Return the throttle to the appropriate bottom or neutral position before attempting another start.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eOver-Load Protection\u003c\/h3\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe ESC can cut motor output when the load suddenly increases to an abnormally high level. Normal operation will not resume until the throttle is returned appropriately.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eThrottle Signal Loss Protection\u003c\/h3\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eIf throttle signal loss is detected for more than approximately 0.25 second, the ESC cuts output immediately. Corresponding motor output can resume after a normal throttle signal is received again.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eWhat to Check Before Buying\u003c\/h2\u003e\n\n\u003cul style=\"font-size:15px;line-height:1.75;color:#333;\"\u003e\n\u003cli\u003eConfirm that your propulsion system uses a \u003cstrong\u003e4S, 5S or 6S LiPo battery\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eCheck actual motor and propeller current against the 50A continuous ESC rating.\u003c\/li\u003e\n\u003cli\u003eDo not treat the 70A \/ 10-second peak rating as a continuous operating target.\u003c\/li\u003e\n\u003cli\u003eConfirm that the wire-leaded 3.5mm motor connection suits your motor wiring.\u003c\/li\u003e\n\u003cli\u003eCheck the 48 × 30 × 15.5mm ESC dimensions against the available mounting area.\u003c\/li\u003e\n\u003cli\u003eAllow suitable airflow and cooling around the ESC.\u003c\/li\u003e\n\u003cli\u003eProvide an appropriate separate power source for the receiver and flight controller because there is no BEC.\u003c\/li\u003e\n\u003cli\u003eConfirm flight-controller throttle-signal compatibility.\u003c\/li\u003e\n\u003cli\u003eConfigure LED color, DEO and motor rotation before normal flight operation.\u003c\/li\u003e\n\u003cli\u003eRemember that SKU 30902052 is a \u003cstrong\u003eDual Pack containing two ESCs\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eHobbywing XRotor PRO 50A Manual\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe official Hobbywing XRotor PRO 40A \/ 50A manual covers ESC wiring, throttle calibration, XRotor PRO 50A DIP-switch programming, normal start-up, protection functions and troubleshooting.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_XRotor_Pro_40A_50A_ESC_Manual.pdf\" target=\"_blank\" rel=\"noopener\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eDownload the Hobbywing XRotor PRO 40A \u0026amp; 50A ESC Manual\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eHow many XRotor PRO 50A ESCs are included?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003e\u003cstrong\u003eTwo ESCs are included.\u003c\/strong\u003e SKU 30902052 is supplied as an XRotor PRO 50A Dual Pack.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat battery does the XRotor PRO 50A support?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe XRotor PRO 50A is specified for \u003cstrong\u003e4-6S LiPo batteries\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is the current rating?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eEach ESC is rated for 50A continuous current and 70A peak current for 10 seconds.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor PRO 50A have a BEC?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eNo. The XRotor PRO 50A does not include a built-in BEC. The receiver and flight controller require an appropriate separate regulated power supply.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat does the DIP switch control?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe four DIP switches control LED ON\/OFF status, red or green LED color, DEO ON\/OFF status and CW \/ CCW motor rotation.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes it have navigation LEDs?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eYes. Built-in high-visibility LEDs can be configured as red or green and can also be switched off using the DIP switches.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eWhat is DEO?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eDEO means Driving Efficiency Optimization. When enabled, active motor braking helps reduce motor speed more quickly when throttle is lowered, while Hobbywing also identifies improved throttle linearity, driving efficiency and lower ESC operating temperature.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eCan motor direction be changed?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eYes. The XRotor PRO 50A DIP-switch system allows motor rotation to be selected between CW and CCW.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes CW \/ CCW control mean automatic 3D reversing?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eThe Hobbywing manual describes the function as a DIP-switch motor-rotation setting. It should not automatically be interpreted as dynamic in-flight reversing unless the complete system is specifically configured and documented for that behavior.\u003c\/p\u003e\n\n\u003ch3 style=\"font-size:15px;font-weight:bold;margin:14px 0 8px;color:#000;\"\u003eDoes the XRotor PRO 50A support 621Hz throttle signals?\u003c\/h3\u003e\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eYes. Hobbywing states support for throttle signal frequencies up to 621Hz. Signals above 500Hz are classified as non-standard, so flight-controller compatibility should be verified.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul style=\"font-size:15px;line-height:1.75;color:#333;\"\u003e\n\u003cli\u003e\u003cstrong\u003e2 × Hobbywing XRotor PRO 50A Wire Leaded ESCs\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eBattery, receiver, UBEC \/ receiver power supply, motors, propellers and other multirotor components are not included unless otherwise stated.\u003c\/p\u003e\n\n\u003ch2 style=\"font-size:18px;font-weight:700;margin:24px 0 10px;color:#000;border-bottom:1px solid #eee;padding-bottom:6px;\"\u003eMore Hobbywing XRotor \u0026amp; Drone ESCs\u003c\/h2\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0 0 14px;color:#333;\"\u003eCompare the XRotor PRO 50A with other \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-xrotor-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing XRotor ESCs\u003c\/a\u003e across different current and LiPo voltage classes.\u003c\/p\u003e\n\n\u003cp style=\"font-size:15px;line-height:1.75;margin:0;color:#333;\"\u003eYou can also browse our wider \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/drone-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003edrone ESC collection\u003c\/a\u003e for multirotor and UAV electronic speed controllers, or explore all \u003ca href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-escs\" style=\"color:#E60073;text-decoration:underline;font-weight:700;\"\u003eHobbywing ESCs\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f7;padding:12px 15px;margin:20px 0 0;border-left:4px solid #E60073;font-size:14px;line-height:1.7;\"\u003e\n\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eSafety Notice:\u003c\/strong\u003e Brushless multirotor power systems can cause serious injury if incorrectly installed or operated. Read the Hobbywing manual before use, verify all wiring and polarity before connecting a battery, and remove propellers during throttle calibration, ESC setup and initial motor testing.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":50361969311958,"sku":"30902052 GL","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/20260909173601_50_298.jpg?v=1788947263"}],"url":"https:\/\/chinahobbyline.com\/id\/collections\/drone-escs.oembed","provider":"ChinaHobbyLine","version":"1.0","type":"link"}