The 79520 series master battery disconnect switch offers protection against battery drain and theft. It also allows personnel to Lock-Out Tag-Out by using a Hasp Lockout system or a suitable padlock. It can also be effectively used as an emergency power cut-off switch protecting personnel and vehicle systems.

Designed for heavy-duty applications, these units are able to handle up to 300 A at 12 V dc. They are sealed to IP68 standards allowing them to be mounted in exposed locations. They are manufactured in a polymer housing and will not rust or corrode allowing them to be used in almost any environment.

Heavy Truck
Off-Road
Emergency Vehicles
Material Handling
Mining
Agricultural
Marine
Construction

High amperage capacity: 300 A at 12 V dc
Can be used in high side or low side applications
Ingress protection: IP68
Rust proof and non-corrosive construction
Tested per SAE 1455 for salt, calcium chloride and magnesium chloride
Large red knob is easy to operate with gloves
90° switch travel makes it easy to identify the switch position
Large divider on base prevents accidental shorting of high energy cables
Fits standard Master Disconnect mounting pattern
Operating temperature range: -40°C to +85°C