Battery Master Switches

Heavy-duty battery disconnect — sometimes called master, isolator, or kill — switches that take the entire vehicle electrical system off in a single action. Specified across heavy trucks, mining and construction plant, marine, agricultural, and emergency-services platforms — anywhere a vehicle is parked, serviced, or left unattended for extended periods. The Cole Hersee battery master switch range covers single-pole and double-pole formats, OEM Caterpillar-spec replacements, key-operated and lever-operated actuation, and current ratings sized for 12V and 24V starter and alternator loads.