Master Disconnect Switches - H/D Truck

The 75920 Series 36V Master Battery Disconnect Switch (75920-BX) protects service personnel, batteries, and electrical systems in emergency vehicles, tractors, heavy-duty trucks, and boats. It prevents battery drain, features lock-out/tag-out for security, and is IPX8-rated waterproof for harsh environments. With a red knob, clear On/Off markings, and 90° switch travel, it serves as a manual emergency power cutoff and fits standard mounting patterns.