SPST SPDT 5PIN 12V 24V 80A Automotive Winch Relay For High-Current Switching

This 5-pin high-power relay is specifically engineered for automotive winch systems and heavy-duty high-current switching applications. It offers flexible contact arrangement options—1A (SPST NO), 1B (SPST NC), or 1C (SPDT)—to accommodate a wide range of control logic requirements. With a maximum resistive load rating of 80A@14VDC on the normally open contact and a maximum switching power of 1120W, this relay reliably handles inrush currents associated with winch operation, starter motors, and auxiliary power distribution. Designed to meet rigorous automotive environmental standards, it operates stably across a temperature range of -40°C to +65°C and withstands high humidity conditions (98% RH at 20°C), making it an ideal choice for both OEM integration and aftermarket upgrades in heavy-duty vehicle electrical systems.

Specification

Features

• High-Current Carrying Capacity: NO contact rated at 80A/14VDC; NC contact rated at 60A/14VDC, ensuring reliable switching for power-hungry loads such as winches, snow plows, and trailer braking systems.

• Multiple Coil Voltage Options: Available in 12V and 24V nominal coil voltages, with precise pick-up and release voltage thresholds (e.g., 3.9V/7.8V pick-up for 12V/24V coils) to ensure consistent actuation under varying battery conditions.

• Low Coil Power Consumption: Operates at just 1.8W, reducing heat generation and easing the load on vehicle control circuits.

• Long Service Life: Electrical life of 100,000 cycles and mechanical life of 10,000,000 cycles, delivering dependable long-term performance in demanding applications.

• Robust Electrical Isolation: Insulation resistance of 100MΩ minimum at 500VDC, with dielectric strength of 750VAC between contacts and between contact and coil, ensuring safe operation and protection against voltage transients.

• High Vibration & Shock Resistance: Withstands 10G shock and vibration from 10 to 50Hz at 1.5mm double amplitude, suitable for off-road and mobile equipment environments.

• Compact & Lightweight: Weighing only 46g with a compact inner packing size of 260×155×33mm, facilitating easy integration into space-constrained junction boxes and control panels.

Applications

• Automotive Winch Systems: Primary switching control for electric winches on off-road vehicles, tow trucks, and recovery vehicles.

• Heavy-Duty Auxiliary Equipment: Power control for snow plow lifts, dump trailer hydraulics, and truck-mounted cranes.

• Marine & RV Applications: Battery isolation, inverter switching, and high-current load management in recreational vehicles and marine vessels.

• Industrial High-Current Switching: General-purpose DC load switching in forklifts, floor cleaning machines, and DC motor control circuits.

• Emergency & Utility Vehicles: Relay control for warning lights, siren systems, and auxiliary power distribution in fire trucks and ambulances.

Contact Details:

Andy Wu

Email: andy@tianrui-fuse.com.cn

MP/Whatsapp: +86 13532772961

Wechat: HFeng0805

Skype: andywutechrich

QQ: 969828363