Safety MaterialOur battery switch is made of tin-plated brass, screws are anti-oxidation and anti-corrosion; Using flame retardant nylon, the shell is high temperature resistant, not afraid of falling, durable, leak-proof, can withstand extreme marine conditions and extend its service life. Easy To UseThis battery switch is easy to install and use. It can be used independently or interlocked with other switches to isolate and protect electrical systems. VoltageUsed for 12-48V, 12V DC continuous 275A, 12V DC intermittent 455A, 12V DC instantaneous 1250A , minimize battery loss and effectively prevent leakage. Safety ProtectionThis battery cut-off switch has four removable side panels and can use 1/0 cable. The rear cover shorts the rear terminals to ensure that the switch meets ABYC requirements. Wide ApplicationThe battery isolation switch can be widely used in the power cutoff switch automobiles, ships, boats, motor homes, motor homes, caravans, trucks, vans, caravans, batteries and other equipment.