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.
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
Applications
- Heavy-Duty Truck
- Construction
- Agricultural Equipment
- Material Handling
- Mining
- Off-Road Vehicles
- Emergency Vehicles
- Marine
| Catalog # | Package Type | Description | Details | Rating | Terminals | Actuator | Case | Installation | Max voltage rating | Max total continuous current | Inrush rating (2 seconds) | Terminal size | Temperature range | Ingress rating | Contacts | Compare |
|---|
 |  | | | | | | | | | | | | | | | |
| 75920 | Bulk | Battery Disconnect Switch 400A 36V SPST | On-Off markings lockout tag-out | | Tin Plated Copper Stud | Red Knob | Engineering thermoplastic | fits standard Master Disconnect Switch hole | 36V | 400A | 3000A x 15 sec. | | -40°C to +85°C | IP68 | Copper | |
| 75920-01 | Bulk | Battery Disconnect Switch 400A 36V SPST | On-Off markings lockout tag-out | | Tin Plated Copper Stud | Red Knob | Engineering thermoplastic | fits standard Master Disconnect Switch hole | 36V | 400A | 3000A x 15 sec. | | -40°C to +85°C | IP68 | Copper | |
| 75920-05 | Bulk | Battery Disconnect Switch 400A 36V SPST | I-O markings lockout tag-out | | Tin Plated Copper Stud | Red Knob | Engineering thermoplastic | fits standard Master Disconnect Switch hole | 36V | 400A | 3000A x 15 sec. | | -40°C to +85°C | IP68 | Copper | |
| 75920-10 | Bulk | Battery Disconnect Switch 300A 36V SPST | On-Off markings | 12-36V DC; 300A Continuous 2000A intermittent | Tin Plated Copper Stud | Red Knob | Engineering thermoplastic | fits standard Master Disconnect Switch hole | 36V | 300A | 2000A | 3/8/24 | | | Copper | |
| 75921-10 | Bulk | Battery Disconnect Switch 400A 36V SPST | I-O markings lockout tag-out | | Tin Plated Copper Stud | Red Knob | Engineering thermoplastic | fits standard Master Disconnect Switch hole | 36V | 400A | 3000A x 15 sec. | | -40°C to +85°C | IP68 | Copper | |
75921
Obsolete: 2018 -01-11 | | Metric Switch | I-O markings | | Tin Plated Copper Stud | Red Knob | Engineering thermoplastic | fits standard Master Disconnect Switch hole | | | | | | | Copper |
