50 Amp battery master switch with a maximum load of 1000 amps (10 seconds) at 12 volts. Can also be used for 24 volt switching. Comes with a detachable handle to prevent tampering. The battery switch is UL rated. Connections to the switch are via 3/8 inch studs so you will use 3/8" ring terminals or 3/8" copper lugs. Switch can be panel mounted such as through a firewall, trunk wall, or control panel.