Switch for two batteries: Spurtar battery main / switch with 4 switching positions, can be used to connect two sets of batteries. Waterproof battery isolator switch switching options: ON 1 / ON 1 + 2 / ON 2 / OFFApplicable voltage: the upgrade battery main switch can be used in a voltage network of 12 to 48 V DC. The DC is 200A at 12VDC, 300A intermittent and 1000A instant. For electrical safety reasons, the current is halved every time the voltage is doubledFuse holder 12 V/24 /48 Volt: battery main switch 12 V cut off switch protects batteries against discharge through current leakage. Battery isolator switch is ideal for installation in car, boat, car, motorhome, caravan, solar systems, truck, pickup truck, solar systems, expedition vehicles, etc.High quality: Spurtar battery isolator switch housing is made of impact-resistant ABS plastic and electrical contacts made of tin-plated copper. Battery switches are widely used in automobiles, boats, ships, motor homes, caravans, solar systems and much more.Installation: battery switch with "Contour Lock System" and removable side panels allow for flexible installation and multiple DC isolators can be combined into one unit. Hole diameter: 85 mm. Mounting material includedSpurtar DC 12V - 48V 1-2-Both-Off-Hauptschalter fr Autos, Boote, Wohnmobile, Camper, Wohnwagen, LKWs, ATVs, UTVs, Batteriebanken und andere Gerte.