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Black plastic automotive circuit breaker with stud terminals and push-to-trip actuator

Buyers Products Company

Buyers Products CB100PB Hi-Amp Circuit Breaker 100 A 42V DC

SKU CH-XACH-PQZWQ

Protects 42 V DC auxiliary circuits with a 100 A manual-reset breaker that mounts on a surface via bolt-on studs

  • Protects auxiliary circuits with 100 A rating
  • Operates reliably at 42V DC systems
  • Manual reset restores power after overload
  • Push-to-trip actuator enables quick testing
  • Bolt-on surface mount simplifies installation

What it is and who it fits

The Buyers Products CB100PB is a 100 A hi-amp circuit breaker rated for 42 V DC systems. It protects auxiliary and accessory circuits in automotive installations. The manual reset and push-to-trip actuator give the installer direct control over circuit interruption. It is not suited for buyers who need a higher voltage rating or an automatic reset function.

Thermals noise and power

The breaker carries a 100 A continuous rating with an interrupt capacity of 100 A at 42 V DC. Under normal load the plastic housing dissipates heat without active cooling. No audible noise is produced during standard operation. The device draws no quiescent current beyond the protected circuit itself.

Build quality and connections

A plastic housing encloses the mechanism in a bolt-on, surface-mount package measuring 2 7/8 in deep by 1 7/8 in wide. Stud terminals accept ring or lug connectors for secure high-current wiring. The manual reset lever and push-to-trip button are accessible on the face for quick inspection and testing.

Highlights

  • Protects auxiliary circuits with 100 A rating
  • Operates reliably at 42V DC systems
  • Manual reset restores power after overload
  • Push-to-trip actuator enables quick testing
  • Bolt-on surface mount simplifies installation

Specifications

BrandBUYERS PRODUCTS

Questions about this item

How do I bolt the CB100PB breaker to the panel and which step do installers skip?

Fasten the surface-mount base with bolts through the two mounting holes, then torque the 100 A stud terminals to spec; the step most often missed is tightening those stud nuts before applying power.

What part of this 100 A breaker will need replacement after repeated trips?

The manual push-to-trip actuator and internal contacts are the wear items; after many overload cycles the contacts can carbonise and the actuator spring can fatigue, requiring a new CB-series unit.

At what sustained current does the 42 V DC rating become the limiting factor?

The breaker interrupts at 100 A at 42 V DC; continuous loads above 100 A will cause repeated nuisance trips, so the 100 A rating is the first limit reached under sustained use.

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