High current relay. 500A high current contactor. Can be used in motor homes, tractors, construction vehicles, etc. Rated voltage 12V DC / 24V DC, with a current capacity of 500A. Capable of continuous operation at 200A. The upgraded 500A relay uses thick copper screws to ensure smooth current flow. Material: Relay coil is designed for low power consumption. Shell is made of improved material, sturdy, heat resistant, and flame retardant. Features: This product prevents the device from discharging when the main battery is operated with the engine off. Suitable for motor homes, tractors, construction vehicles, etc. Size Chart: Stud diameter 8MM / 0.31 inch 65x75x85mm / 2.56x2.95x3.35 inch Package Includes: 1 Piece High Current Starter Relay Note: 1. Please allow slight variation due to manual measurement. 2. Due to differences in monitor displays, the picture may not reflect the actual color of the item.