Safe protection: the battery main switch can switch off the power supply of the vehicle or battery on board for safety purpose. If you do not use the battery for a long time, you can also save power. Material: made of tin-plated full red copper core and ABS plastic. The tinning improves the antioxidation and discolouration performance of red copper and extends rust protection time, at the same time has no influence on conductivity. Widely compatible: used for the system of 12 - 48 V, 275 A (continuous) / 455 A (intermittent) / 1250 A (current). Can stand alone or be locked together with another switch to minimise battery loss and effectively prevent leakage of power. Wide applications: battery switch serves as a main switch for caravans, ATV, cars, boats, caravans, trucks, UTV, etc. Easy to use: the battery switch has clear colour labels to mark the on/off positions. ON = ON (green), OFF = OFF (red).