M-750 Series - Battery Selector Master Disconnect Switches

DataSheet:Download M-750 Series Datasheet

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: Battery selector switches provide a positive battery disconnect, which has many advantages: Specifications
  • Power cut off at the source
  • Power On, Battery 2
  • Power On, Battery 1
  • Power On, both Batteries
  • 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
  • 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.
  • 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.
Ordering Information
Catalog #DescriptionUL listedRatingTerminalsActuatorCaseSizeInstallationOverall heightMax voltage rating
M-750Basic modelMarine UL Listed6-36V DC; 310A Continuous 500A intermittentthree 3/8 copper studsPlastic KnobEngineering thermoplastic6 flange diameterSurface MountThrough-Hole 3-5/162-5/836 Vdc
M_751With lockMarine UL Listed6-36V DC; 310A Continuous 500A intermittentthree 3/8 copper studsPlastic KnobEngineering thermoplastic6 flange diameterSurface MountThrough-Hole 3-5/162-5/836 Vdc
M_752With alternator field disconnectMarine UL Listed6-36V DC; 310A Continuous 500A intermittentthree 3/8 copper studsPlastic KnobEngineering thermoplastic6 flange diameterSurface MountThrough-Hole 3-5/162-5/836 Vdc
M_753With lock and alternator field disconnectMarine UL Listed6-36V DC; 310A Continuous 500A intermittentthree 3/8 copper studsPlastic KnobEngineering thermoplastic6 flange diameterSurface MountThrough-Hole 3-5/162-5/836 Vdc
M_754With pilot lightMarine UL Listed6-36V DC; 310A Continuous 500A intermittentthree 3/8 copper studsPlastic KnobEngineering thermoplastic6 flange diameterSurface MountThrough-Hole 3-5/162-5/836 Vdc
M_754-01With pilot and pilot circuitMarine UL Listed6-36V DC; 310A Continuous 500A intermittentthree 3/8 copper studsPlastic KnobEngineering thermoplastic6 flange diameterSurface MountThrough-Hole 3-5/162-5/836 Vdc
Resources
Download M-750 Series Datasheet m750
Download M-750 Series Datasheet m750
M-750 Battery Selector/Master Disconnect Switch - D-598 m750
M-750 Battery Selector/Master Disconnect Switch - D-598 m750
M-750 Series Switches 2D Prints m750