This heavy-duty 500A DC contactor relay is engineered for demanding automotive and electrical applications. The robust 4-pin design features a 2-phase, 2-pole configuration capable of handling surge currents up to 500A, making it ideal for high-power switching needs. Housed in a durable black metal casing with dimensions of 80mm x 70mm x 41mm, this relay provides reliable On/Off auto switching functionality. The compact construction is perfectly suited for space-constrained installations while maintaining excellent performance capabilities. The relay's versatile design makes it compatible with various automotive electrical systems, from power distribution to motor control applications. Its sturdy construction ensures consistent operation under challenging conditions, while the secure mounting bracket provides stable installation. Whether you're working on a vehicle electrical system upgrade or industrial power management project, this contactor relay delivers the performance and reliability needed for critical switching applications.