High Capacity Battery Disconnect - 4 TerminalBattery disconnect switch with high capacity alternator circuit. Manual battery disconnect switch with a bright red handle Easier to find in an emergency Prevents battery drain Battery circuit 175 amps continuous rating; 1000 amps peak Alternator circuit 125 amps continuous rating (for cars with high capacity alternators); 500 amps peak Temp rating: 20 F to 180 F Stud size: 3 8" May require drilling a 3 4" hole (switch only panel not included)