Cole Hersee Battery Master Switch 75910BX DPST On/Off

The Cole Hersee 75910BX Battery Master Switch is a heavy-duty battery isolation switch designed for demanding industrial and mining applications. Known for its reliability and robust construction, this DPST (Double Pole Single Throw) switch disconnects both the battery and alternator field circuit, helping protect electrical systems and improve vehicle safety.

Originally developed with input from major mining operations, the 75910 series has become widely used across Australia in vehicles operating in harsh environments including mining, transport, construction and heavy equipment.

Built with premium internal contacts and durable external materials, the switch is designed to withstand vibration, extreme temperatures and challenging conditions while providing dependable electrical isolation when required.

Key Features

Genuine Cole Hersee 75910BX – Stamped casing confirms authentic product

Heavy-duty DPST isolation switch – Disconnects battery and alternator/generator field

Silver contacts – High conductivity and long service life

Steel-plated casing – Designed for durability in demanding environments

Chrome-plated die-cast alloy lever – Corrosion-resistant and built for repeated use

Brass mounting stem and studs – Secure and reliable installation

O-ring sealed construction – Helps protect against dust and moisture

Multi-voltage compatibility – Suitable for 6V to 36V systems

Panel mount design – Mounting stem suits panel thickness up to 6.5mm

Specifications

Voltage Range: 6V – 36V
Amperage Rating: 800A intermittent
Continuous Rating: 125A
Small application rating: 20A continuous
Operating Temperature: -40°C to +85°C
Mounting: Panel mount
Dimensions: Height 110mm x Depth 67mm