Standard 20A BLDC ESC Brushless Motor Speed Controller
![Standard 20A BLDC ESC Brushless Motor Speed Controller]()
![Standard 20A BLDC ESC Brushless Motor Speed Controller]()
![Standard 20A BLDC ESC Brushless Motor Speed Controller]()
![Standard 20A BLDC ESC Brushless Motor Speed Controller]()
![Standard 20A BLDC ESC Brushless Motor Speed Controller]()
![Standard 20A BLDC ESC Brushless Motor Speed Controller]()
The controller features a built-in 5V 3A Battery Eliminator Circuit (BEC) for powering compatible RC receivers and servos. It supports 2S–4S LiPo/Li-ion batteries and 5–12 cell NiMH/NiCd batteries. Equipped with high-quality MOSFETs, an advanced microcontroller, efficient heat dissipation, and protection functions, the ESC is suitable for demanding RC applications. Its programmable throttle settings, three startup modes, and connecting wires make it convenient for drone assembly and aeromodelling projects.
-22%
Standard 20A BLDC ESC Brushless Motor Speed Controller
Available:In Stock
- Product SKU: KG251
₹ 349
₹ 449
Specification
Description
Standard 20A BLDC ESC Brushless Motor Speed Controller
The Standard 20A BLDC ESC Brushless Motor Speed Controller is a compact, efficient, and programmable Electronic Speed Controller (ESC) designed for controlling three-phase brushless DC motors in drones, quadcopters, RC airplanes, helicopters, UAVs, and robotics projects. Featuring a 20A continuous current rating and 25A burst current capacity for 10 seconds, this ESC provides smooth throttle response, precise speed regulation, and reliable motor operation.The controller features a built-in 5V 3A Battery Eliminator Circuit (BEC) for powering compatible RC receivers and servos. It supports 2S–4S LiPo/Li-ion batteries and 5–12 cell NiMH/NiCd batteries. Equipped with high-quality MOSFETs, an advanced microcontroller, efficient heat dissipation, and protection functions, the ESC is suitable for demanding RC applications. Its programmable throttle settings, three startup modes, and connecting wires make it convenient for drone assembly and aeromodelling projects.
Features
- 20A continuous current capacity for brushless motors
- 25A burst current capacity for up to 10 seconds
- Built-in 5V 3A BEC for receivers and servos
- Compatible with 2S–4S LiPo and Li-ion batteries
- Supports 5–12 cell NiMH and NiCd battery packs
- High-quality MOSFETs for efficient motor driving
- High-performance microcontroller for precise motor control
- Fully programmable using a compatible RC transmitter
- Three startup modes: Normal, Soft, and Super-Soft
- Configurable throttle range for RC transmitter compatibility
- Smooth, linear, and precise throttle response
- Low-voltage cut-off protection
- Over-temperature protection
- Heat sink with thermal interface material for improved cooling
- Separate microcontroller voltage regulator for improved noise immunity
- Supports clockwise and counterclockwise motor rotation
- Suitable for drones, quadcopters, helicopters, and RC airplanes
Working Principle
The Standard 20A BLDC ESC controls the speed of a three-phase brushless DC motor by electronically switching electrical power through its MOSFET driving circuit. The onboard microcontroller receives throttle signals from an RC receiver, flight controller, or compatible ESC tester and generates switching signals for the motor windings.
Using electronic commutation and Pulse Width Modulation (PWM), the ESC regulates the effective power supplied to the brushless motor. This provides smooth acceleration, stable operation, and accurate throttle control.
The integrated 5V 3A BEC converts battery voltage into a regulated 5V output for compatible receivers and servos. The low-voltage cut-off and over-temperature protection functions help reduce the risk of damage during abnormal operating conditions.
Using electronic commutation and Pulse Width Modulation (PWM), the ESC regulates the effective power supplied to the brushless motor. This provides smooth acceleration, stable operation, and accurate throttle control.
The integrated 5V 3A BEC converts battery voltage into a regulated 5V output for compatible receivers and servos. The low-voltage cut-off and over-temperature protection functions help reduce the risk of damage during abnormal operating conditions.
Motor Wire and ESC Connection
- Battery Positive (+): Connect to Battery Positive (+)
- Battery Negative (-): Connect to Battery Negative (-)
- Motor Phase Wire A: Connect to BLDC Motor Wire 1
- Motor Phase Wire B: Connect to BLDC Motor Wire 2
- Motor Phase Wire C: Connect to BLDC Motor Wire 3
- ESC Signal Wire: Connect to RC Receiver, Flight Controller, or ESC Tester Signal Output
- BEC Positive (+5V): Regulated 5V Output for Compatible Receiver or Servos
- ESC Ground (GND): Connect to Receiver or Flight Controller Ground
Recommended Motor, Battery and Propeller
- Recommended Motor Type: Three-Phase Sensorless BLDC Motor
- ESC Continuous Current: 20A
- Maximum Burst Current: 25A for 10 Seconds
- Compatible LiPo Battery: 2S–4S
- Compatible Li-ion Battery: 2–4 Cells in Series
- LiPo Nominal Battery Voltage: 7.4V–14.8V
- NiMH / NiCd Battery: 5–12 Cells
- BEC Output: 5V DC, Maximum 3A
- Control Input: Compatible RC Receiver, Flight Controller, or ESC Tester
- Suitable Motors: A2212 Series and Other Compatible BLDC Motors
- Propeller Selection: Based on Motor KV, Battery Voltage, and Load Current
- Suitable Frames: F450 Quadcopters and Compatible RC Aircraft Frames
Technical Details
- Item Type: Electronic Speed Controller
- Model: Standard 20A BLDC ESC
- Motor Type: Three-Phase Sensorless Brushless DC Motor
- Controller Type: Programmable Electronic Speed Controller
- Continuous Output Current: 20A
- Burst Output Current: 25A for 10 Seconds
- Input Battery Type: LiPo / Li-ion / NiMH / NiCd
- LiPo / Li-ion Battery Support: 2–4 Cells
- NiMH / NiCd Battery Support: 5–12 Cells
- LiPo Nominal Input Voltage: 7.4V–14.8V
- BEC Type: Built-in Battery Eliminator Circuit
- BEC Output Voltage: 5V DC
- BEC Maximum Output Current: 3A
- Maximum Motor Speed (2 Poles): 210,000 RPM
- Maximum Motor Speed (6 Poles): 70,000 RPM
- Maximum Motor Speed (12 Poles): 35,000 RPM
- Motor Drive Circuit: MOSFET-Based Three-Phase Switching
- Motor Control Method: Electronic Commutation
- Speed Control Method: PWM-Based Motor Control
- Programming Method: Compatible RC Transmitter
- Startup Modes: Normal / Soft / Super-Soft
- Throttle Range: Configurable
- Throttle Response: Smooth and Linear
- Low-Voltage Protection: Supported
- Over-Temperature Protection: Supported
- Thermal Management: Heat Sink with Thermal Interface Material
- Microcontroller Voltage Regulation: Separate Voltage Regulator
- Motor Phase Connections: 3 Wires
- Rotation Direction: CW / CCW
Applications
- DIY drones and quadcopters
- F450 quadcopter frames
- RC airplanes and fixed-wing aircraft
- RC helicopters
- Unmanned Aerial Vehicles (UAVs)
- A2212 brushless motor control projects
- Brushless motor speed control experiments
- DIY RC airboats and propulsion systems
- Robotics and educational electronics projects
- Drone assembly and aeromodelling
- RC motor testing using ESC testers
- Custom BLDC motor control systems
Physical Attributes
- Length: Approximately 55mm
- Width: Approximately 26mm
- Height: Approximately 10mm
- Weight: Approximately 20g
Installation and Usage Instructions
- Mount the ESC securely in a suitable location with adequate airflow.
- Connect the three ESC motor phase wires to the compatible BLDC motor.
- Connect the ESC signal cable to an RC receiver, flight controller, or ESC tester.
- Verify the signal, 5V BEC, and ground connections.
- Ensure the throttle is at its minimum position before connecting battery power.
- Connect a compatible 2S–4S LiPo battery or supported NiMH/NiCd battery.
- Follow the ESC startup tones and programming procedure.
- Configure throttle calibration and startup settings if required.
- Test motor operation at low speed without installing a propeller.
- Check motor rotation and interchange two motor phase wires if necessary.
- Disconnect battery power before installing the propeller or changing wiring.
- Monitor motor current and ESC temperature during operation.
Frequently Asked Questions (FAQs)
- What is the continuous current rating? The ESC supports 20A continuous motor current.
- What is the maximum burst current? Up to 25A for approximately 10 seconds.
- Which batteries are compatible? 2S–4S LiPo/Li-ion or 5–12 cell NiMH/NiCd battery packs.
- Does this ESC have a built-in BEC? Yes, it features a 5V 3A BEC.
- Can it control an A2212 brushless motor? Yes, provided the motor, battery, propeller, and ESC ratings are compatible.
- Can it control a brushed DC motor? No, it is designed for compatible three-phase brushless motors.
- Can it be used with a quadcopter? Yes, when compatible with the flight controller's throttle control signal.
- Is the ESC programmable? Yes, using a compatible standard RC transmitter.
- Does it support soft startup? Yes, Normal, Soft, and Super-Soft startup modes are available.
- Can the motor rotate in both directions? Yes, by swapping any two motor phase wires.
- Can it operate without a flight controller? Yes, with a compatible RC receiver or ESC tester.
- Is a brushless motor included? No, the brushless motor is sold separately.
Safety Precautions
- Use only compatible three-phase brushless DC motors.
- Do not exceed the 20A continuous current rating.
- Use batteries within the specified input voltage range.
- Never reverse battery polarity.
- Remove the propeller during initial testing and programming.
- Disconnect battery power before changing motor connections.
- Ensure all electrical connections are secure and insulated.
- Provide adequate cooling during high-current operation.
- Do not exceed the BEC output rating and verify cooling requirements.
- Avoid operating the ESC in wet or excessively dusty environments.
- Keep hands and loose objects away from rotating motors and propellers.
- Stop operation immediately if abnormal heating, smoke, or unusual motor behavior occurs.
Package Includes
- 1 × Standard 20A BLDC ESC Brushless Motor Speed Controller with Built-in 5V 3A BEC
Related items
₹ 49.00
₹ 79.00
₹ 329.00
₹ 449.00
₹ 349.00
₹ 449.00
₹ 19.00
₹ 29.00
