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Product Description
Rating Options | 25-150 Amps, 48V DC |
Interrupt Rating | 5000 Amps @ 14V DC, 3000 Amps @ 28V DC, 1500 Amps @ 48V DC |
Operating Temp. | -40°F (-40 °C) to 185 °F (85 °C) |
Storage Temp. | -40°F (-40 °C) to 260 °F (125 °C) |
Marking | Includes amp/volt ratings |
Terminal Stud Size | 5/16" - 18" |
IP Rating | IP66 |

Bussmann breakers are a type of thermal breaker that have been designed to tackle some of the toughest conditions out there. These breakers are typically used in auxiliary as well as accessory circuits in trucks, buses, RVs, and marine systems. They are known throughout the marine industry for their durability and reliability. Other uses of Bussmann breakers include battery chargers and even DC audio systems. Series 187 Bussmann breakers are sealed for engine compartment and bilge area applications. Choosing the correct breakers for your application is not a simple task. Contact a Pacer expert today with any questions you may have.
Applications:
- Used in DC power systems in marine applications.
Compliances:
- ABYC E-11
- CE
- SAE J1171 (ignition protected)
Features:
- A manual reset circuit breaker with On-Off switch capability
- "Trip-Free" design cannot be held on during fault current conditions
- Ignition protected, all components meet SAE 1171 external circuit protection requirements
- Large clearance around terminals accepts heavy-gauge wire lugs
- Materials: UL-rated thermoset plastic body, cover, and leverare UL-rated 94V-0 thermoplastic