This durable switch is designed with a removable key 45! past the off position, labeled handle and a removable back cover covering exposed terminals. The switch can also be surface mounted. Can easily be retrofitted in place of most European post and lever type switches. Continuous Rating: 275 Amps DC Intermittent Rating: 455 Amps DC Cranking Rating: 1250 Amps DC Voltage Rating: 48 Volts DC Operation: On/Off Mounting: recessed or Surface Termination Stud Size: 3/8" Tin plated copper studs and nuts Ignition protected