UL tested and approved! Protects against electrical fire, tampering, theft and accidental battery voltage drain. Can be used with generator or alternator charging systems. Disconnects the battery circuit only. Does not disconnect the generator or alternator field circuit. Features silver laminated contacts, die cast lever, heavy steel case, and brass terminals. It's either off, or it's on, with an 800 amp intermittent rating. The Battery Disconnect Switch will handle up to 36 volts.