12V 24V 36V 40A PWM DC Motor Speed Controller | Forward-Reverse Switch with Digital Display
Description
The 12V 24V 36V 40A PWM DC Motor Speed Controller is a robust, high-current speed regulation device engineered to govern the performance of high-power DC brush motors efficiently. Featuring heavy-duty automotive relays and advanced pulse-width modulation (PWM) circuitry, this controller provides precise linear speed adjustment, torque regulation, and directional control.
Enclosed securely, the unit integrates a 3-digit seven-segment LED display that shows the active operating voltage in real-time. It includes a user-friendly toggle rocker switch for instant forward and reverse direction switching, along with a 100K potentiometer knob for smooth 0-100% speed scaling. Designed with secure fence terminal blocks, it ensures safe and stable high-current wiring connections for demanding industrial and robotic applications.
Key Features
- High-Current Capacity: Delivers a robust 40A continuous current rating with up to 50A maximum surge handling.
- Wide Voltage Compatibility: Operates seamlessly across DC 12V, 24V, and 36V power input ranges.
- Digital LED Readout: Integrated 3-digit seven-segment LED display monitors the exact output operating voltage.
- Reversible Direction Control: Equipped with a reliable toggle rocker switch for instant Forward and Reverse motor rotation.
- Linear Speed Regulation: Precision 100K potentiometer with built-in switch enables smooth 0% to 100% speed control.
- Automotive-Grade Relays: Built with high-power automotive relays designed for heavy-duty electrical switching endurance.
- Linear Output Under Load: Maintains stable voltage scaling and performance characteristics even under mechanical stress.
- Secure Fence Terminals: High-integrity fence terminal blocks ensure solid, low-resistance wire clamping.
- Optimized Form Factor: Compact structural dimensions of 100 x 76 x 28 mm designed for easy panel integration.
- Lightweight Structural Build: Optimized unit weight of 173 grams to minimize mounting stress on custom equipment.
Benefits
- Handles Heavy Loads: Easily drives large DC brush motors that require substantial continuous amperage.
- Precise Visual Monitoring: Digital display removes guesswork by showing real-time voltage output levels during operation.
- Effortless Directional Shifting: Toggle switch allows quick transition between forward and reverse states without rewiring.
- Reliable Electrical Stability: High-power relays and robust layout prevent voltage drops and thermal runaway under standard loads.
- Ready-to-Deploy Assembly: Accessible terminal blocks reduce installation time and protect circuitry.
Applications
- Industrial Conveyor Systems: Controlling belt speeds and operational directions in automated manufacturing lines.
- Heavy-Duty Robotics: Powering large differential drive robots, combat rovers, and automated guided vehicles (AGVs).
- Electric Mobility Projects: Speed and direction governance for custom electric bicycles, scooters, and buggies.
- Automotive Test Benches: Regulating high-current DC motors and actuators in workshop testing setups.
- Agricultural Machinery: Managing motorized automated feeders, sprayers, and harvesting attachments.
- Custom Mechatronics & Winches: Driving high-torque motorized winches and mechanical lifting fixtures.
Package Includes
- 1 x 12V 24V 36V 40A PWM DC Motor Speed Controller
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Device Type | Motor Rotation Controller Board, PWM Speed Regulator |
| Input Voltage Range | DC 12V to 36V (Matched to Motor Rated Voltage) |
| Continuous Current Rating | 40 Amperes |
| Maximum Peak Current | 50 Amperes |
| Speed Regulation Type | Current Regulation via Linear Potentiometer |
| Speed Regulation Range | 0% to 100% Full Scale |
| Compatible Motor Type | DC Brush Motors |
| Direction Control Mechanism | Toggle Switch (Forward / Reverse) |
| Potentiometer Specifications | 100K Ohm Resistance (Integrated with Switch) |
| Display Interface | 3-Digit Seven-Segment LED Voltage Indicator |
| Switching Components | High-Power Automotive Relays |
| Wiring / Terminal Interface | Fence Terminal Blocks / Terminal Knob |
| Board Dimensions (L × W × H) | 100 mm × 76 mm × 28 mm |
| Device Net Weight | 0.173 kg (173 grams) |


































