Allows high amp switching under load from remote locations or manually, eliminating long cable runs. Includes remote control switch # 2145 with lockout slide to prevent accidental switching. 12V DC coil controls circuits up to 32V DC and is rated for 500 amps continuous duty and 2500 cranking amps (10 sec.) to handle even large diesel engines. Magnetic latch only draws current when changing the state of switch: it draws no current in the "ON" or "OFF" states. 3/8 in. Tin plated copper studs.