





- Stock: In Stock
- Model: C126.ESC20A2-3S
SimonK ESC 20A Brushless Motor Controller
The SimonK ESC 20A Brushless Motor Controller is a professional-grade electronic speed controller designed for remote-controlled drones and vehicles. It provides precise control over brushless motors and features built-in protection against low voltage and excessive heat. Compatible with 2 to 3 cell lithium polymer batteries, it supports high rotation speeds (up to 210,000 RPM), ensuring quick response and smooth performance.
Technical Specifications
- Continuous current: 20 Amps
- Maximum burst current (10 seconds): 25A
- Battery compatibility: 2-3S LiPo
- BEC output: 5 volts / 2 Amps (Linear mode)
- Dimensions: 55 × 28 × 7 mm
- Weight: 28 grams
- Motor rotation speed*: 2 poles: 210,000 RPM, 6 poles: 70,000 RPM, 12 poles: 35,000 RPM
*RPM values vary depending on the motor structure.
Integrated Protection Systems
Includes protection from low voltage to prevent excessive battery discharge and temperature monitoring to protect the motor from damage due to high temperature.
High Performance
Supports very high speeds up to 210,000 RPM with two-pole motors - ideal for drone racing.
Lightweight and Compact Design
With a weight of just 28 grams and a small size, it helps save space in drone designs.
Applications
- Drones and multi-copters: Quick and stable motor control in FPV racing drones.
- RC cars and boats: Smooth speed transitions in brushless vehicles.
- DIY projects: Ideal for robots and custom electric vehicle designs.
Usage
- Connect the Electronic Speed Controller (ESC) to the three-phase wires of the brushless motor.
- Connect a compatible 2-3S Li-Po battery.
- Connect the signal cable to your receiver and perform calibration.
- Test the motor direction and throttle response.
FAQs
Can it be used with a 3S Li-Po battery?
Yes, it works efficiently with 3S lithium polymer batteries (11.1 volts). Make sure the voltage does not exceed 12.6 volts.
What is the purpose of the BEC outputs?
The Battery Elimination Circuit (BEC) provides 5 volts/2 amps power for components such as the receiver and servomotors.
What happens in case of high temperature?
The ESC automatically shuts off when the temperature exceeds 110 degrees Celsius to protect the components.
How do I calibrate the motor?
Move the throttle stick to the maximum, then turn on the electronic controller steady, wait to hear two sounds, then move the stick to the minimum.
Any installation tips?
Install the Electronic Speed Controller in a well-ventilated area for better heat dissipation and use double-sided tape to reduce vibration.