M_754 - M-750 Series

m-750
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 or 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.

Features

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
  • The version with the key 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

Specifications

  • Rating: 500A intermittent, 310A continuous, 6-36V DC Electrical ratings on UL labels are conservative. Electrical Ratings Labeled UL 707B
  • Use with either alternators or generators.
Make before break design permits operation through the three On positions with the engines running. Engines should always be shut down before turning to Off.

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. Offsite info on Marine Power Generation Offsite info on Marine Dual Battery Wiring
Property (Mouseover for details) Value
Package Type M-754-BP
Description With pilot light
UL listed Marine UL Listed
Rating 6-36V DC; 310A Continuous 500A intermittent
Terminals three 3/8 copper studs
Actuator Plastic Knob
Case Engineering thermoplastic
Size 6 flange diameter
Installation Surface Mount
Through-Hole 3-5/16
Overall height 2-5/8
Max voltage rating 36V
Max total continuous current 310A

pdf icon M-750 Battery Selector Disconnect Switch Datasheet

Part Number: M-750 - Replaces Hotfeed D-598

pdf icon M-750 Series Switches 2D Prints

Part Numbers: M-750 M-751 M-752 M-753 M-754