Standard 30A BLDC ESC Brushless Motor Speed Controller
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The controller features a built-in 5V 3A Battery Eliminator Circuit (BEC) for powering compatible 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, heat sink, and protection functions, this ESC delivers efficient motor operation. Its programmable throttle settings, three startup modes, and connection leads make it suitable for fixed-wing aircraft, helicopters, and multirotor projects.
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-22%
Standard 30A BLDC ESC Brushless Motor Speed Controller
Available:In Stock
- Product SKU: KG252
₹ 349
₹ 449
Specification
Description
Standard 30A BLDC ESC Brushless Motor Speed Controller
The Standard 30A BLDC ESC Brushless Motor Speed Controller is a compact, efficient, and fully programmable Electronic Speed Controller (ESC) designed for controlling three-phase brushless motors used in drones, quadcopters, RC airplanes, helicopters, UAVs, and DIY robotics projects. Featuring a 30A continuous current rating and 25A burst current capacity for 10 seconds, this ESC provides smooth throttle response, precise motor speed regulation, and reliable performance for aeromodelling applications.The controller features a built-in 5V 3A Battery Eliminator Circuit (BEC) for powering compatible 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, heat sink, and protection functions, this ESC delivers efficient motor operation. Its programmable throttle settings, three startup modes, and connection leads make it suitable for fixed-wing aircraft, helicopters, and multirotor projects.
Features
- 30A continuous current capacity for brushless DC motors
- 25A burst current capacity for up to 10 seconds
- Built-in 5V 3A BEC for compatible receivers and servos
- Compatible with 2S–4S LiPo and Li-ion battery packs
- Supports 5–12 cell NiMH and NiCd batteries
- High-quality MOSFETs for efficient three-phase motor control
- High-performance microcontroller for precise speed regulation
- Fully programmable using a compatible standard RC transmitter
- Three startup modes: Normal, Soft, and Super-Soft
- Configurable throttle range for receiver compatibility
- Smooth, linear, and precise throttle response
- Low-voltage cut-off protection
- Over-temperature protection
- Heat sink with efficient thermal interface material
- Separate voltage regulator for improved noise immunity
- Supports clockwise and counterclockwise motor rotation
- Suitable for drones, quadcopters, helicopters, and RC airplanes
Working Principle
The 30A BLDC ESC controls the speed of a three-phase brushless DC motor by electronically switching electrical power through its MOSFET drive circuit. The integrated microcontroller receives throttle commands from a compatible RC receiver, flight controller, or ESC tester and generates controlled switching signals for the motor windings.
Using electronic commutation and Pulse Width Modulation (PWM), the ESC regulates the effective electrical power delivered to the motor. This enables smooth acceleration, accurate speed control, and stable throttle response.
The integrated 5V 3A BEC provides a regulated 5V output for compatible external receivers and servos. Built-in low-voltage cut-off and over-temperature protection help protect the electronic components during abnormal operating conditions.
Using electronic commutation and Pulse Width Modulation (PWM), the ESC regulates the effective electrical power delivered to the motor. This enables smooth acceleration, accurate speed control, and stable throttle response.
The integrated 5V 3A BEC provides a regulated 5V output for compatible external receivers and servos. Built-in low-voltage cut-off and over-temperature protection help protect the electronic components during abnormal operating conditions.
Motor Wire and ESC Connection
- Battery Positive (+): Connect to Battery Positive Terminal (+)
- Battery Negative (-): Connect to Battery Negative Terminal (-)
- Motor Phase Wire A: Connect to Brushless Motor Wire 1
- Motor Phase Wire B: Connect to Brushless Motor Wire 2
- Motor Phase Wire C: Connect to Brushless Motor Wire 3
- ESC Signal Wire: Connect to Flight Controller, RC Receiver, or ESC Tester Signal Pin
- 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: 30A
- Maximum Burst Current: 25A for 10 Seconds
- Compatible LiPo Battery: 2S–4S
- Compatible Li-ion Battery: 2–4 Cells in Series
- LiPo Battery Voltage: 7.4V–14.8V Nominal
- 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
Technical Details
- Item Type: Electronic Speed Controller
- Product Model: Standard 30A BLDC ESC
- Motor Type: Three-Phase Sensorless Brushless DC Motor
- Controller Type: Programmable Electronic Speed Controller
- Continuous Output Current: 30A
- 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
- Motor Rotation Direction: CW / CCW
Applications
- DIY drones and quadcopters
- F450 and compatible multirotor frames
- RC airplanes and fixed-wing aircraft
- RC helicopters
- Unmanned Aerial Vehicles (UAVs)
- A2212 brushless motor control projects
- Brushless motor speed regulation experiments
- DIY RC airboats and propulsion systems
- Robotics and educational electronics projects
- Drone assembly and aeromodelling applications
- RC motor testing using ESC testers
- Custom brushless motor control systems
Physical Attributes
- Length: 55mm
- Width: 26mm
- Height: 10mm
- Weight: 20g
- Suitable for installation inside RC aircraft and drone frames
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 wire 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 pack.
- Follow the ESC startup tones and manufacturer's programming procedure.
- Configure throttle calibration and startup mode if required.
- Test motor operation at low speed without installing a propeller.
- Check motor rotation and swap 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 30A 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, if the motor, battery, propeller load, and ESC ratings are compatible.
- Can it control a brushed DC motor? No, it is designed for three-phase brushless motors.
- Can it be used with a quadcopter? Yes, provided the flight controller's throttle signals are compatible.
- Is the ESC programmable? Yes, using a compatible 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, using a compatible RC receiver or ESC tester.
- Is a brushless motor included? No, the motor is sold separately.
Safety Precautions
- Use only compatible three-phase brushless DC motors.
- Do not exceed the 30A 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 5V 3A BEC output rating.
- 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 30A BLDC ESC Brushless Motor Speed Controller with Built-in 5V 3A BEC
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