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Series: 75920

36V Master Battery Disconnect Switch
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Keep service personnel safe and protect the battery and electrical systems in your emergency vehicle, tractor, heavy-duty truck, or boat with the 75920 Series 36V Master Battery Disconnect Switch.

The heavy-duty battery disconnect switch ensures the safety of service professionals by disconnecting the battery from the vehicle electrical system, safeguards against battery drain from parasitic loads, and features built-in lock-out/tag-out for tampering and theft prevention.

As an IPX8-rated waterproof battery disconnect switch, it is ideal for a wide range of vehicles, including construction equipment, heavy-duty trucks, boats, and vehicles operating in harsh conditions, such as snowplows and snow removal equipment. Fitting a standard master disconnect mounting pattern, the 75920 series can be used as a drop-in replacement.

With a large knob that makes manual operation simple, plus clear switch position markings and 90° switch travel, the high-amp battery disconnect can effectively be used as a manual emergency power cutoff switch.

  • High amperage continuous current capacity of 400A with a single 4/0 cable at 12V dc, 300A at 24V dc, or 200A at 36V dc
  • IPX8-rated waterproof battery disconnect switch for external mounting on vehicles as well as installation on boats and marine equipment
  • Can be used in high-side or low-side applications
  • Black or gray thermoplastic housing with a UL 94 V-0 rating
  • Tested per SAE J1455 for salt, calcium chloride, and magnesium chloride, delivering a rust- and corrosion-free high-amp battery disconnect
  • Large red, yellow, or black knob makes the master battery disconnect switch easy to operate while wearing gloves
  • Built-in lock-out/tag-out (LOTO) satisfies OSHA requirements for an energy isolation device
  • Large divider on the base prevents accidental shorting of high energy cables

75920 Parts

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75920 Applications

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Tractor-Trailers

When tractor-trailers and tanker trucks work, so does the economy. Littelfuse keeps the literal wheels of commerce turning by making overcurrent

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Bulldozers

Bulldozers need immense power and advanced electronic components that ensure peak performance in harsh environments. Trust Littelfuse to deliver

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Forklifts

Rely on Littelfuse to deliver circuit protection and power management solutions designed to boost the performance of electric forklifts and other

Highlights Section

  • Heavy-Duty Trucks
  • Construction & Agricultural Equipment
  • Material Handling & Mining
  • Off-Road Vehicles & Emergency Vehicles
  • Marine

Series: 75920 Resources