75920 LITTELFUSE | Alldatasheet

Document overview

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Technical content

Littelfuse.com © 2022 Littelfuse, Inc. 072022-A 75920-01 75921-0275920

Description

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. Web Resources Download 2D print, installation guide and technical resources at: littelfuse.com/75920Series

Applications

  • Heavy-Duty Truck
  • Construction
  • Agricultural Equipment
  • Material Handling Features and Benefits
  • 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, and the 90° switch travel makes it simple to identify the switch position
  • 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 Specifications Current Rating Continuous: 400A @ 12V 300A @ 24V 200A @ 36V Intermittent Current in Amps: At 12V all, 5 cycles : 1000A 90 sec on, 5 min off 1500A 60 sec on, 5 min off 2000A 30 sec on, 5 min off 3000A 15 sec on, 5 min off Max Voltage Rating: 36 VDC Ignition Protection: UL 94V-0 Ingress Protection: IPX8 Mounting Method: Through Hole Circuitry: SPST Operating Temp Range: -40 to +85 °C

75920 SERIES

36V MASTER BATTERY DISCONNECT SWITCH

  • Mining
  • Off-Road Vehicles
  • Emergency Vehicles
  • Marine

Littelfuse.com © 2022 Littelfuse, Inc. 072022-A

Ordering Information

DIMENSION (mm) ACTUATOR KNOB 75920 36V Master Battery Disconnect Switch with On/Off Markings and Red Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-01 36V Master Battery Disconnect Switch with On/Off Markings and Yellow Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 YELLOW 75920-02 36V Master Battery Disconnect Switch with Special Red Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-03 36V Master Battery Disconnect Switch without External Stop or Bezel - Red Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-04 36V Master Battery Disconnect Switch with I/O Markings and Red Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-05 36V Master Battery Disconnect Switch with I/O Markings and Red Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-05-BX 36V Master Battery Disconnect Switch with I/O Markings and Red Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-06 36V Master Battery Disconnect Switch with I/O Markings and Red Knob 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-10 36V Master Battery Disconnect Switch with I/O Markings, Red Knob, and Stainless Steel Hardware 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-12 36V Master Battery Disconnect Switch with On/Off Markings and Rectangular Bezel 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-BP 36V Master Battery Disconnect Switch with On/Off Markings and Red Knob - Blister Pack 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75920-BX 36V Master Battery Disconnect Switch with On/Off Markings and Red Knob - Boxed 3/8-24 3/4"-16 ZINC Ø20.62, Ø7.92 RED 75921-02 36V Master Battery Disconnect Switch with I/O Markings and Black Knob - SS Hex Nut - Metric M10 X 1.5 18mm X 1.5 ZINC Ø19.00, Ø7.00 BLACK 75921-03 36V Master Battery Disconnect Switch with I/O Markings and Black Knob - Metric M10 X 1.5 18mm X 1.5 ZINC Ø19.00, Ø7.00 BLACK 75921-10 36V Master Battery Disconnect Switch with I/O Markings and Red Knob - SS Hardware - Metric M10 X 1.5 18mm X 1.5 ZINC Ø19.00, Ø7.00 RED 75921-10-BX 36V Master Battery Disconnect Switch with I/O Markings and Red Knob - SS Hardware - Metric - Boxed M10 X 1.5 18mm X 1.5 ZINC Ø19.00, Ø7.00 RED 36V MASTER BATTERY DISCONNECT SWITCH