High current relay. 500A high current contactor. Can be used , motor homes, tractors, construction vehicle etc. Rated voltage 12V DC / 24V DC, through the current of 500A. Working 200A for a long time. The upgraded 500A relay uses thick copper screws to ensure the smooth passage currents. Material: consumption of the relay coil is designed with consumption, shell is made of improved material, which sturdy, resistant to high temperature and flame retardant. Features: This product prevents the device from discharging when the main battery is operated with the engine off. Can be used , motor homes, tractors, construction vehicle etc. Size Chart: Stud diameter 8MM/0.31inch 65x75x85mm/2.56x2.95x3.35inch Package Includes: 1 Piece High Current Starter Relay Note: 1. Please allow slightly error due to manual measurement. 2. Due to between different monitors, the picture may not reflect the actual the item. 3 shopping!