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T-Motor ALPHA 40A 4–6S LV ESC is a low-voltage electronic speed controller for UAV power systems and brushless motor applications. It supports 18–25.2V input for 4–6S LiPo batteries, with 40A continuous current and 60A peak current according to the product specification. The ESC provides 500Hz throttle refresh, a 1100–1940μs throttle position range and 120ms throttle response speed. It uses separate power, motor, signal and programming cables for system integration. The ALPHA 40A ESC has no BEC, so the connected flight controller and receiver system must use a suitable external power supply. Confirm motor, battery, connector and cooling requirements before installation.
Low-Voltage Brushless ESC
For 4–6S UAV Power Systems
T-Motor ALPHA 40A ESC for 4–6S UAV Power Systems
40A ESC for 4–6S UAV Systems
The T-Motor ALPHA 40A LV ESC supports 4–6S LiPo power input from 18V to 25.2V. It provides 40A continuous current and 60A peak current for brushless motor control in UAV propulsion systems. The ESC is designed for integration with a compatible motor, battery, flight controller and power wiring configuration.
Signal Control and System Integration
The ALPHA 40A ESC provides a 1100–1940μs throttle position range, 500Hz throttle refresh frequency and 120ms throttle response speed. It has no BEC and therefore requires the aircraft power architecture to provide a suitable external supply for connected electronics. Confirm the signal cable, programming cable, motor phase wiring and cooling conditions before installation.









Core Technical Parameters
· Product Type: Low-Voltage Electronic Speed Controller
· Model: ALPHA 40A LV ESC
· Support Voltage: 18–25.2V
· Battery Compatibility: 4–6S LiPo
· Continuous Current: 40A
· Peak Current: 60A (10S)
· Standby Consumption: ≤50mA
· BEC: No
· Throttle Position Range: 1100–1940μs
· Throttle Refresh Frequency: 500Hz
· Throttle Response Speed: 120ms
· Dimensions: 64.5 × 29.4 × 14.7mm
· Weight Including Cables: 54.5g
Want to Choose the Right Products for You?
Take a quick test to find the right propeller for you.
UAV ESC Control and Integration
· 4–6S LiPo support with 18–25.2V input
· 40A continuous current
· 60A peak current
· 500Hz throttle refresh frequency
· 1100–1940μs throttle position range
· 120ms throttle response speed
· No BEC
· Separate motor, power, signal and programming cables
· 64.5 × 29.4 × 14.7mm body size
· 54.5g weight including cables
Packaging and Shipping
· Product: T-Motor ALPHA 40A 4–6S LV ESC
· Packing list: One ALPHA 40A 6S ESC and one manual according to the product specification image
· Confirm cable configuration and included accessories before shipment
· Packaging configuration: To be confirmed
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Important ESC Selection and Installation Notice
· Confirm that the battery system operates within the supported 18–25.2V input range before connection.
· Confirm that the motor, propeller, battery and ESC current requirements are compatible.
· This ESC has no BEC; provide a suitable external power supply for the flight controller, receiver and other connected electronics.
· Check motor phase wires, power polarity, signal wiring and programming cable connections before powering the system.
· Provide suitable cooling and avoid operating the ESC beyond its specified current and voltage limits.
· Test the propulsion system without a propeller before the first flight and inspect all connections before operation.