DC 12V–72V 150A Electromagnetic Relay Contactor Module
DC 12V–72V 150A Electromagnetic Relay Contactor Module
DC High Voltage Electromagnetic Relay — 12V to 72V, 150A Motor Load Contactor Module
This heavy-duty DC electromagnetic relay contactor module is engineered for automotive, EV, e-bike, forklift, and industrial motor control applications. Supporting a wide coil voltage range of DC 12V / 24V / 36V / 48V / 60V / 72V and a maximum continuous current of 150A, it provides a reliable, high-performance switching solution for demanding DC power circuits. Silver tin oxide (AgSnO₂In₂O₃) contacts deliver excellent arc resistance and long service life, making this contactor a trusted choice for electric vehicle battery management systems, golf carts, solar energy storage systems, and heavy motor loads.
Made in Mainland China.
Key Features
- Wide Voltage Compatibility: Operates at DC 12V, 24V, 36V, 48V, 60V, and 72V coil voltages — one module covers a broad range of systems.
- High Current Capacity: Rated up to 150A continuous current with a maximum switching voltage of 110V DC.
- AgSnO₂In₂O₃ Contacts: Superior contact material for low resistance, minimal arcing, and extended electrical life.
- Fast Response: Suction and release times both ≤50ms for responsive switching performance.
- Long Mechanical Life: Up to 1×10⁷ operations at 300 cycles/min — built to last.
- Wide Operating Temperature: Reliable from -40°C to +75°C, suitable for outdoor and engine-bay environments.
- Low Power Coil: Only 2.4W coil power consumption for energy-efficient control.
- High Insulation Resistance: 20MΩ at 500V DC; dielectric withstand voltage of 1000VAC between contacts and coil.
Full Technical Specifications
| Parameter | Value |
|---|---|
| Contact Form | 1H-UC |
| Rated Coil Voltage | DC 12V / 24V / 36V / 48V / 60V / 72V |
| Contact Material | AgSnO₂In₂O₃ |
| Contact Load | 150A / 14V DC | 100A / 28V DC | 50A / 72V DC |
| Max. Continuous Current | 150A |
| Maximum Switching Voltage | 110V DC |
| Minimum Load | 1A / 6V DC |
| Mechanical Life | 1×10⁷ operations (300 cycles/min) |
| Electrical Life | 5×10⁴ operations (ON: 1s / OFF: 4s) |
| Suction Time | ≤50ms |
| Release Time | ≤50ms |
| Insulation Resistance | 20MΩ (500V DC) |
| Dielectric Withstand (Contact–Contact) | 1000VAC / 1 min (<1mA leakage) |
| Dielectric Withstand (Contact–Coil) | 1000VAC / 1 min (<1mA leakage) |
| Ambient Temperature | -40°C to +75°C |
| Coil Power Consumption | 2.4W |
Typical Applications
- Electric vehicles (EV), e-bikes, and electric scooters
- Golf carts, forklifts, and electric utility vehicles
- Solar energy storage and battery management systems
- DC motor control and power distribution panels
- Industrial automation and heavy-load switching circuits
Package Contents
- 1× DC Electromagnetic Relay Contactor Module
Note: Actual color may vary slightly from product images due to lighting and screen differences. Please allow ±1mm–1cm dimensional tolerance due to manual measurement.
For guidance on electrical safety standards and best practices when working with high-voltage DC components, refer to the OSHA Electrical Safety guidelines.
Frequently Asked Questions
Q: What coil voltages does this DC electromagnetic relay contactor support?
A: This relay module is available in six coil voltage options: DC 12V, 24V, 36V, 48V, 60V, and 72V, making it compatible with a wide range of automotive, EV, and industrial DC power systems. Please select the coil voltage that matches your application's control circuit voltage.
Q: Can this 150A contactor be used for electric vehicle battery management?
A: Yes. This high-current DC relay contactor is commonly used in electric vehicles, e-bikes, golf carts, and solar battery management systems. With a maximum continuous current rating of 150A and a switching voltage up to 110V DC, it handles high-power DC motor loads effectively and safely.
Q: What is the operating temperature range of this relay module?
A: The relay is rated for ambient temperatures from -40°C to +75°C (-40°F to +167°F), ensuring reliable performance in cold climates, engine bays, and outdoor industrial environments.
Q: How long will this DC contactor relay last?
A: The relay is rated for a mechanical life of up to 1×10⁷ switching operations at 300 cycles per minute, and an electrical life of 5×10⁴ operations under load (ON 1s / OFF 4s cycle). This makes it well-suited for applications requiring frequent switching over an extended service period.