Isolates starting battery, assures you of primary battery power for starting engine and provides secondary battery current for auxiliary power. Cadmium-plated, non-breakable, heavy-duty housing. Includes terminal nuts and washers. 3 terminal for metal frame ground systems. 12 VDC continuous-duty.

• 3 post dual battery switch
• Switch between two batteries
• Requires metal frame ground
• Three terminal hookup