Cole Hersee: M-751 Series Battery Selector and Disconnector Switch (Keyed) - (Part#: M751)

For any vehicle that needs to use two batteries where one battery is used for starting the engine, while the other is used to power auxiliary loads. This is a common situation in trucks, boats, RVs, police and rescue vehicles, and in ambulances and fire equipment.

A selector switch allows use of the first battery, the second battery, or both batteries simultaneously. This provides back-up starting power in an emergency.

Either or both batteries can be selected for energizing.

These switches combine the functions of Battery Selector and Master Disconnect Switches to give four battery power options:

Power cut off at the source.

Power On, Battery 2

Power On, Battery 1

Power On, both Batteries.

Battery selector switches provide a positive battery disconnect, which has many advantages:

It gives a reliable shutdown of power during maintenance.

Keyed Version of (Cole Hersee M750) which protects against theft of the vehicle, when unattended.

It helps protect against electrical fires, when the vehicle is not in use, and minimizes battery drain.

Rating: 6-36V DC; 310A Continuous, 500A intermittent

Terminals: three 3/8" copper studs

Actuators: Plastic Knob

Case Engineering: plastic case, knob and insulator

Size: 6" flange diameter

Installation: surface mount or install through a panel with a 3-5/16" dia. hole

Overall Height: 2-5/8"

UL Listed: Marine UL Listed

Heavy-Duty Construction

Vaporproof

Weather, Dust and corrosion-resistant.

Durable, fracture-resistant high temperature plastic case, knob and insulator.

Switches conform to uscg section 183.410 for ignition protection.

Resistant to impact, and temperature extremes.

Heavy duty copper stud terminals, with brass hexnuts.

Can be surface mounted, or installed through a 3 5/16" diameter hole in the panel.

Dimensions:

Flange: 6" (152.4mm)

Diameter: Overall height 2 5/8" (66.7mm)

Terminals: 3 copper studs, 3/8" (9.5mm) diameter.

Approx. Item Weight: 2 Pounds

Since its founding in 1924, Cole Hersee has been a pioneer and leader in the development of heavy-duty electrical products for the vehicle industry, and has earned a reputation for quality and value. Cole Hersee collaborated on many basic industry standards and today is a preferred supplier of over 2,000 dependable vehicle products and accessories.

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