{"product_id":"hobbywing-xrotor-40a-multirotor-esc","title":"Hobbywing XRotor 40A 6S BLDC Multirotor ESC – 2-6S, 40A\/60A","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","url":"https:\/\/chinahobbyline.com\/fi\/products\/hobbywing-xrotor-40a-multirotor-esc","provider":"ChinaHobbyLine","version":"1.0","type":"link"}