The WM686 Heavy Current Starting Relay is a high-performance automotive relay engineered to handle the demanding power requirements of vehicle starting systems and other heavy-duty electrical applications. Rated at an impressive 120A, this relay delivers reliable and instant switching performance even under continuous high current loads. Compatible with both 12V and 24V electrical systems, it offers versatile use across a wide range of vehicles, trucks, boats, and heavy equipment. The robust electromagnetic design ensures stable operation, while the durable construction is built to withstand the rigors of demanding automotive environments. Clearly labeled terminal pins (30, 86, 85, 87) make wiring straightforward, and the integrated mounting bracket allows for secure, convenient installation. Whether you're upgrading your vehicle's electrical system or replacing a worn-out relay, the WM686 provides the dependable high-current performance you need.