{"product_id":"hobbywing-quicrun-fusion-se-1200kv","title":"Hobbywing QUICRUN Fusion SE 1200KV FOC 2-in-1 40A ESC \u0026 Motor System for 1\/10 RC Crawlers","description":"\u003cp\u003eThe \u003cstrong\u003eHobbywing QUICRUN Fusion SE 1200KV\u003c\/strong\u003e combines a brushless ESC and 540-size motor into one integrated FOC power system for 1\/10 RC crawlers and scale trail trucks. The 1200KV version is particularly well suited to crawler builds that prioritize fine low-speed throttle control, controlled wheel speed and smooth technical crawling over outright speed.\u003c\/p\u003e\n\n\u003cp\u003eWith \u003cstrong\u003e2-3S LiPo support\u003c\/strong\u003e, a 40A continuous current rating, RPM \/ Throttle Matching, adjustable drag brake, a 6V \/ 7.4V 4A BEC and IP67 protection, the Fusion SE delivers the core benefits of Hobbywing's integrated crawler platform in a relatively simple, compact package.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/1_58007cd1-36f7-406a-9aa2-c86435282680.png\" alt=\"Hobbywing QUICRUN Fusion SE 1200KV FOC 2-in-1 ESC and motor system for 1\/10 RC crawlers\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eQuick Fit Check\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBest suited for:\u003c\/strong\u003e 1\/10 RC crawlers, rock crawlers and scale trail trucks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem type:\u003c\/strong\u003e Sensored FOC brushless ESC + motor 2-in-1 system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor KV:\u003c\/strong\u003e 1200KV\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eContinuous \/ Peak Current:\u003c\/strong\u003e 40A \/ 120A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e 2-3S LiPo or 6-9 cell NiMH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMotor size:\u003c\/strong\u003e 36mm diameter × 58.1mm length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShaft:\u003c\/strong\u003e 3.175mm diameter × 16.5mm exposed length\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBEC:\u003c\/strong\u003e 6V \/ 7.4V adjustable, 4A continuous\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery connector:\u003c\/strong\u003e XT60\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProtection rating:\u003c\/strong\u003e IP67\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProgramming:\u003c\/strong\u003e Hobbywing LED Program Box\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBest use case:\u003c\/strong\u003e Builds that prioritize low-speed precision rather than higher wheel speed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eImportant:\u003c\/strong\u003e Confirm motor clearance, mounting geometry, shaft position and drivetrain gearing before installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px;font-size:14px;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProduct Name\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eHobbywing QUICRUN Fusion SE 1200KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProduct Number\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e30404318\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e1\/10 RC crawler\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eSystem Type\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eSensored FOC brushless ESC \u0026amp; motor 2-in-1 system\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eContinuous \/ Peak Current\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e40A \/ 120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eBattery Support\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e2-3S LiPo \/ 6-9 cell NiMH\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eMotor KV\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e1200KV\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eMotor Poles\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e4 poles\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eBEC Output\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e6V \/ 7.4V adjustable, 4A continuous, switch-mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eMotor Diameter \/ Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e36mm × 58.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eShaft Diameter \/ Exposed Length\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e3.175mm \/ 16.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003e201g including wires and connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003ePower Wires\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eRed 14AWG 200mm × 1 \/ Black 14AWG 200mm × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eBattery Connector\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eXT60\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProtection Rating\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eIP67\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eProgramming Port\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eIndependent programming port located at the electronic switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003eSupported Programmer\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eHobbywing LED Program Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhy Choose the 1200KV Fusion SE?\u003c\/h2\u003e\n\n\u003cp\u003eThe 1200KV version is aimed at crawler setups where controlled wheel speed and fine throttle resolution are priorities. A lower KV motor produces fewer unloaded RPM per volt than the 1800KV version, making it easier to build a drivetrain around deliberate, low-speed crawling behavior.\u003c\/p\u003e\n\n\u003cp\u003eThat does not mean the 1200KV version automatically produces more usable wheel torque in every vehicle. Final crawling behavior depends on \u003cstrong\u003ebattery voltage, pinion size, spur gear, axle ratio, tire diameter and vehicle weight\u003c\/strong\u003e. The practical advantage is that the lower motor speed provides a useful foundation for technical crawler gearing.\u003c\/p\u003e\n\n\u003ch2\u003eIntegrated ESC and Motor for a Cleaner Crawler Layout\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE places the ESC electronics inside the motor assembly instead of requiring a separate standalone ESC. This removes the normal three external phase wires between ESC and motor and reduces the number of major components that need their own chassis mounting location.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/2_9c9730a1-448c-4485-8144-4e04bd1f886c.png\" alt=\"Hobbywing QUICRUN Fusion SE 1200KV integrated ESC and motor with 58.1mm compact crawler power system\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e36 × 58.1mm\u003c\/strong\u003e body can simplify wiring and leave more usable chassis space for receivers, lighting controllers and scale accessories. Always verify transmission clearance and motor-mount geometry before installation.\u003c\/p\u003e\n\n\u003ch2\u003eFOC Drive for Precise Low-Speed Control\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eField-Oriented Control\u003c\/strong\u003e is the main reason the Fusion SE behaves differently from a conventional brushless crawler power system. Instead of focusing on high RPM, the controller continuously manages motor torque to provide smooth response at extremely low speed.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/3_dc9fd871-218e-44a6-bdba-cf412ef32d8b.png\" alt=\"Hobbywing QUICRUN Fusion SE 1200KV FOC drive for smooth low-speed RC crawler control\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eThe 1200KV motor complements that control strategy particularly well in crawler setups designed around slow wheel speed, making it easier to make small throttle corrections while approaching ledges, rocks and other technical obstacles.\u003c\/p\u003e\n\n\u003ch2\u003eQuiet and Efficient Sine-Wave Operation\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE uses sine-wave drive to deliver smooth motor operation with relatively low acoustic noise and reduced electrical losses.\u003c\/p\u003e\n\n\u003cp\u003eThis is especially valuable during low-speed crawling, where motor noise and abrupt commutation are more noticeable than in higher-speed RC applications. Efficient operation can also help reduce unnecessary heat and make better use of available battery energy.\u003c\/p\u003e\n\n\u003cp\u003eActual runtime depends on the complete setup, including gearing, battery capacity, vehicle weight, terrain and driving style, so no fixed runtime improvement should be assumed.\u003c\/p\u003e\n\n\u003ch2\u003eRPM \/ Throttle Matching for Changing Terrain\u003c\/h2\u003e\n\n\u003cp\u003eWhen \u003cstrong\u003eRPM \/ Throttle Matching\u003c\/strong\u003e is enabled, the ESC uses closed-loop speed control to compensate for changes in vehicle resistance.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/4_929d751e-2fbf-4fd9-8511-6f999ff17287.png\" alt=\"Hobbywing QUICRUN Fusion SE 1200KV closed-loop RPM Throttle Matching for crawler climbs and descents\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eWhen the crawler encounters additional load on a climb, the Fusion SE can automatically adjust motor torque so vehicle speed remains closer to the driver's throttle command. On descents, the same closed-loop behavior can provide a controlled slow-downhill experience.\u003c\/p\u003e\n\n\u003cp\u003eWhen RPM \/ Throttle Matching is disabled, vehicle speed is allowed to change more naturally with terrain resistance, similar to a conventional sensored brushless ESC.\u003c\/p\u003e\n\n\u003ch2\u003eAdjustable Drag Brake for Hill Holding\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE separates the final drag brake force from the rate at which that braking force is applied.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/5_b75987eb-2bcc-4f9f-88ab-f6af2f39be03.png\" alt=\"Hobbywing QUICRUN Fusion SE 1200KV adjustable drag brake force and rate for crawler hill holding\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrag Brake Force:\u003c\/strong\u003e Disabled + Levels 1-8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrag Brake Rate:\u003c\/strong\u003e Levels 1-9\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDrag Brake Force determines how much braking force is ultimately applied at neutral throttle. Drag Brake Rate determines how quickly that force builds from zero to the selected level.\u003c\/p\u003e\n\n\u003cp\u003eThis makes it possible to configure strong hill holding without necessarily making the initial braking action excessively abrupt.\u003c\/p\u003e\n\n\u003ch2\u003e2-3S LiPo Support\u003c\/h2\u003e\n\n\u003cp\u003eThe QUICRUN Fusion SE 1200KV supports \u003cstrong\u003e2S and 3S LiPo\u003c\/strong\u003e batteries or 6-9 cell NiMH packs.\u003c\/p\u003e\n\n\u003cp\u003eThe correct battery choice should be made together with the crawler's gearing and desired wheel speed. A 3S setup does not simply make the system “better”; the additional voltage also increases motor RPM, so gearing and drivetrain load should be considered as part of the complete power system.\u003c\/p\u003e\n\n\u003cp\u003eLiPo cell count can be detected automatically or selected manually through the ESC programming system.\u003c\/p\u003e\n\n\u003ch2\u003e6V \/ 7.4V Adjustable 4A BEC\u003c\/h2\u003e\n\n\u003cp\u003eThe built-in switch-mode BEC provides \u003cstrong\u003e4A continuous current\u003c\/strong\u003e and selectable \u003cstrong\u003e6V or 7.4V\u003c\/strong\u003e output.\u003c\/p\u003e\n\n\u003cp\u003eUse 6V for conventional receiver-side electronics that are not designed for high voltage. The 7.4V setting can be used with compatible high-voltage servos and receiver equipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e every device connected to the receiver power bus must support the selected BEC voltage.\u003c\/p\u003e\n\n\u003cp\u003eA \u003cstrong\u003e3S LiPo should be used when regulated 7.4V BEC output is required\u003c\/strong\u003e. A 2S LiPo does not provide enough voltage headroom to maintain a regulated 7.4V output throughout the complete discharge cycle.\u003c\/p\u003e\n\n\u003ch2\u003eIP67 Protection for Wet and Dusty Trails\u003c\/h2\u003e\n\n\u003cp\u003eThe complete Fusion SE power system carries an \u003cstrong\u003eIP67 protection rating\u003c\/strong\u003e and is designed to withstand the water, dust and debris commonly encountered by trail trucks and rock crawlers.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/7_ec76eee7-ebec-4388-bc9c-c587e1884c5e.png\" alt=\"Hobbywing QUICRUN Fusion SE 1200KV IP67 waterproof and dustproof crawler power system\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eThis makes the system suitable for normal crawler use involving rain, splashes, mud, dust and snow.\u003c\/p\u003e\n\n\u003cp\u003eIP67 protection does not mean the system should remain submerged for extended periods. Waterproof and dustproof performance may also decline after impacts, seal damage or long-term wear. Clean and dry the power system after wet or muddy operation.\u003c\/p\u003e\n\n\u003ch2\u003eDesigned for Demanding Crawler Use\u003c\/h2\u003e\n\n\u003cp\u003eThe integrated structure, sealed electronic switch and simplified wiring layout reduce the number of exposed external power-system components compared with a conventional ESC-and-motor installation.\u003c\/p\u003e\n\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/6_3a9a9207-0166-44b8-8769-7053f821798c.png\" alt=\"Hobbywing QUICRUN Fusion SE 1200KV integrated crawler system with electronic switch and XT60 connector\" style=\"max-width:100%;height:auto;display:block;margin:24px auto;\" loading=\"lazy\"\u003e\n\u003c\/p\u003e\n\n\u003cp\u003eAs with any crawler electronics, inspect wiring, connectors, mounting hardware and the switch assembly after hard impacts or demanding wet-weather use.\u003c\/p\u003e\n\n\u003ch2\u003eNine Adjustable ESC Parameters\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE provides nine programmable settings:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRPM \/ Throttle Matching\u003c\/li\u003e\n  \u003cli\u003eLiPo Cells\u003c\/li\u003e\n  \u003cli\u003eCutoff Voltage\u003c\/li\u003e\n  \u003cli\u003eESC Thermal Protection\u003c\/li\u003e\n  \u003cli\u003eMotor Rotation\u003c\/li\u003e\n  \u003cli\u003eBEC Voltage\u003c\/li\u003e\n  \u003cli\u003eDrag Brake Force\u003c\/li\u003e\n  \u003cli\u003eDrag Brake Rate\u003c\/li\u003e\n  \u003cli\u003eMax. Reverse Force\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eProgrammable LiPo Low-Voltage Protection\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE continuously monitors battery voltage while low-voltage protection is enabled.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow:\u003c\/strong\u003e 3.0V per cell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedium:\u003c\/strong\u003e 3.2V per cell\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh:\u003c\/strong\u003e 3.4V per cell\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWhen battery voltage reaches the selected threshold, output is progressively reduced before eventually being disabled to help protect the LiPo battery from excessive discharge.\u003c\/p\u003e\n\n\u003cp\u003eLow-voltage protection can be disabled, but it should normally remain enabled when using LiPo batteries.\u003c\/p\u003e\n\n\u003ch2\u003eLED Program Box Programming\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE uses a dedicated \u003cstrong\u003e3-pin programming interface integrated into the electronic switch\u003c\/strong\u003e. ESC parameters are adjusted through the Hobbywing LED Program Box.\u003c\/p\u003e\n\n\u003cp\u003eConnect the program box while the Fusion SE is switched off, then power on the system. The ITEM and VALUE controls allow available settings to be selected, and the OK button stores the new value.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe Hobbywing LED Program Box is sold separately unless specifically stated otherwise in the package listing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe QUICRUN Fusion SE does \u003cstrong\u003enot\u003c\/strong\u003e support LCD G2, LCD Program Box Pro or Hobbywing OTA programming.\u003c\/p\u003e\n\n\u003ch2\u003eMultiple Protection Functions\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE includes several protection functions for normal crawler use:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBattery low-voltage protection\u003c\/li\u003e\n  \u003cli\u003eESC thermal protection\u003c\/li\u003e\n  \u003cli\u003eThrottle signal loss protection\u003c\/li\u003e\n  \u003cli\u003eMotor lock-up protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIf the ESC enters low-voltage protection, the red LED flashes continuously. If thermal protection is triggered, the green LED flashes continuously until operating temperature falls sufficiently.\u003c\/p\u003e\n\n\u003ch2\u003eElectronic Switch and Programming Port\u003c\/h2\u003e\n\n\u003cp\u003eShort-press the electronic switch to power on the system and long-press it to switch the system off. The same switch assembly contains the independent programming interface used with the LED Program Box.\u003c\/p\u003e\n\n\u003cp\u003eThe battery should still be physically disconnected after every driving session. Leaving a battery connected can allow the ESC to continue drawing a small amount of current even when switched off.\u003c\/p\u003e\n\n\u003ch2\u003eReceiver Power and External BEC Warning\u003c\/h2\u003e\n\n\u003cp\u003eThe red wire in the throttle lead carries the internal BEC output to the receiver and steering servo.\u003c\/p\u003e\n\n\u003cp\u003eDo not simultaneously connect another BEC or receiver battery to the same receiver power bus while the Fusion SE's internal BEC remains connected.\u003c\/p\u003e\n\n\u003cp\u003eIf a separate receiver power source is required, disconnect the red BEC wire from the Fusion SE throttle lead and insulate it securely before applying external receiver power.\u003c\/p\u003e\n\n\u003ch2\u003eThrottle Calibration\u003c\/h2\u003e\n\n\u003cp\u003eThrottle calibration should be completed before first use and repeated if the transmitter, receiver or throttle-channel settings are changed.\u003c\/p\u003e\n\n\u003cp\u003eThe calibration process stores:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNeutral position\u003c\/li\u003e\n  \u003cli\u003eFull forward position\u003c\/li\u003e\n  \u003cli\u003eFull reverse position\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor safety, remove the pinion gear or otherwise prevent the drivetrain from moving the vehicle during calibration.\u003c\/p\u003e\n\n\u003ch2\u003eAutomatic Motor Pairing\u003c\/h2\u003e\n\n\u003cp\u003eThe Fusion SE provides an optional automatic motor-pairing process if the motor experiences severe impact, abnormal heating or abnormal power output.\u003c\/p\u003e\n\n\u003cp\u003eThe motor gear must be removed before beginning the pairing process because the motor rotates automatically during calibration.\u003c\/p\u003e\n\n\u003ch2\u003e1200KV vs 1800KV Fusion SE: Which Should You Choose?\u003c\/h2\u003e\n\n\u003cp\u003eBoth Fusion SE versions share the same integrated FOC architecture, 40A ESC, 2-3S battery range, 4A BEC, physical dimensions and programming system. The key difference is motor KV.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable style=\"width:100%;border-collapse:separate;border-spacing:0 8px;font-size:14px;\"\u003e\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003e1200KV\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eLower motor RPM per volt; a strong choice for technical crawling and builds prioritizing controlled wheel speed.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\u003ctd style=\"background:#E60073;color:#fff;font-weight:bold;padding:10px 12px;border-radius:8px 0 0 8px;\"\u003e1800KV\u003c\/td\u003e\n\u003ctd style=\"background:#f2f2f2;padding:10px 12px;border-radius:0 8px 8px 0;\"\u003eHigher motor RPM per volt; better suited when the crawler needs more wheel-speed potential while retaining Fusion SE low-speed control.\u003c\/td\u003e\n\u003c\/tr\u003e\n\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eNeither KV is universally better. Final vehicle behavior depends on gearing, battery voltage, tire diameter, vehicle weight and intended terrain.\u003c\/p\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\n\u003ch3\u003eWhat is the Hobbywing QUICRUN Fusion SE 1200KV?\u003c\/h3\u003e\n\u003cp\u003eIt is an integrated sensored FOC brushless motor and ESC system designed primarily for 1\/10 RC crawlers and trail trucks.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the difference between the Fusion SE 1200KV and 1800KV?\u003c\/h3\u003e\n\u003cp\u003eThe main difference is motor speed per volt. The 1200KV version has lower motor RPM and is particularly attractive for technical crawler setups that prioritize controlled wheel speed. The 1800KV version offers more motor-speed potential. Gearing still plays a major role in final vehicle behavior.\u003c\/p\u003e\n\n\u003ch3\u003eCan the Fusion SE 1200KV run on 3S?\u003c\/h3\u003e\n\u003cp\u003eYes. It supports both 2S and 3S LiPo batteries. Gearing and drivetrain load should be appropriate for the chosen battery voltage.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the Fusion SE 1200KV have RPM Matching?\u003c\/h3\u003e\n\u003cp\u003eYes. With RPM \/ Throttle Matching enabled, closed-loop speed control automatically adjusts motor torque as terrain resistance changes.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the Fusion SE have adjustable drag brake?\u003c\/h3\u003e\n\u003cp\u003eYes. Drag Brake Force provides Disabled plus Levels 1-8, while Drag Brake Rate provides Levels 1-9.\u003c\/p\u003e\n\n\u003ch3\u003eCan I use a 7.4V steering servo?\u003c\/h3\u003e\n\u003cp\u003eYes, provided the receiver, servo and all other devices on the receiver power bus support 7.4V. Use a 3S LiPo when regulated 7.4V BEC output is required.\u003c\/p\u003e\n\n\u003ch3\u003eWhich programming box works with the Fusion SE?\u003c\/h3\u003e\n\u003cp\u003eThe Fusion SE supports the Hobbywing LED Program Box through the independent programming port located on the electronic switch.\u003c\/p\u003e\n\n\u003ch3\u003eDoes the Fusion SE support LCD or OTA programming?\u003c\/h3\u003e\n\u003cp\u003eNo. It does not support LCD G2, LCD Program Box Pro or Hobbywing OTA programming.\u003c\/p\u003e\n\n\u003ch3\u003eIs the Fusion SE waterproof?\u003c\/h3\u003e\n\u003cp\u003eThe power system carries an IP67 protection rating for normal crawler exposure to water and dust. It should not be considered permanently waterproof or suitable for prolonged submersion.\u003c\/p\u003e\n\n\u003ch3\u003eWill the Fusion SE 1200KV fit every 1\/10 crawler?\u003c\/h3\u003e\n\u003cp\u003eNo. Its 36 × 58.1mm body fits many crawler layouts, but transmission clearance, mounting geometry, links, shaft position and surrounding components must be checked for each chassis.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 × Hobbywing QUICRUN Fusion SE 1200KV ESC \/ Motor 2-in-1 System\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eLED Program Box, receiver, servo, battery and other crawler electronics are not included unless specifically stated in the product listing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notice\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eDisconnect the battery after every use.\u003c\/li\u003e\n  \u003cli\u003eNever reverse battery polarity.\u003c\/li\u003e\n  \u003cli\u003eUse 7.4V BEC output only with receiver-side electronics rated for that voltage.\u003c\/li\u003e\n  \u003cli\u003eUse a 3S LiPo when regulated 7.4V BEC output is required.\u003c\/li\u003e\n  \u003cli\u003eDo not simultaneously power the receiver from the Fusion SE internal BEC and another BEC or receiver battery unless the power sources are properly isolated.\u003c\/li\u003e\n  \u003cli\u003eDo not allow the external temperature of the system to exceed 90°C \/ 194°F.\u003c\/li\u003e\n  \u003cli\u003eIP67 does not mean the system should remain submerged for extended periods.\u003c\/li\u003e\n  \u003cli\u003eRemove the pinion gear before throttle calibration or automatic motor pairing where required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eQUICRUN Fusion SE User Manual\u003c\/h2\u003e\n\n\u003cp\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/Hobbywing_QUICRUN_Fusion_SE_Manual.pdf\"\u003e\nDownload the Hobbywing QUICRUN Fusion SE User Manual\n\u003c\/a\u003e\n\u003c\/p\u003e\n\n\u003ch2\u003eComplete Your RC Crawler Power Setup\u003c\/h2\u003e\n\n\u003cp\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/brushless-escs\"\u003eBrushless ESC Collection\u003c\/a\u003e\u003cbr\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/hobbywing-quicrun-escs\"\u003eHobbywing QUICRUN ESCs\u003c\/a\u003e\u003cbr\u003e\n\u003ca style=\"color:#E60073;text-decoration:underline;\" href=\"https:\/\/chinahobbyline.com\/collections\/esc-programming-cards\"\u003eESC Programming Cards\u003c\/a\u003e\n\u003c\/p\u003e","brand":"ChinaHobbyLine","offers":[{"title":"Global","offer_id":49873294393558,"sku":"30404318 GL","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/0617\/0582\/files\/40A1200KV.jpg?v=1786087790","url":"https:\/\/chinahobbyline.com\/id\/products\/hobbywing-quicrun-fusion-se-1200kv","provider":"ChinaHobbyLine","version":"1.0","type":"link"}