This relay can be used for main power disconnect for race cars with front battery location. A switch in the rear can be used to trigger this relay with only small trigger wires, eliminating the bulky heavy battery cable running from the rear to the front. This relay would be located in the front near the battery. This relay is capable of 500 amps continuous and 2000 amps in rush current, with a small package measuring 2.5 inches tall and 2.5 inches wide. It is the most rugged reliable heavy amperage relay used. This relay is also used in our commercial applications. Picture is shown with optional shut off button.