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Black plastic hi-amp circuit breaker with two stud terminals and a push-to-trip button

Buyers Products Company

Buyers Products Company CB150PB 150 A Circuit Breaker

SKU CH-E1W4-3E7VQ

Protects 42 V DC auxiliary circuits with a 150 A manual-reset breaker that mounts on a surface via bolt-on studs

  • 150 A rating protects high-draw auxiliary circuits
  • Manual push-to-trip actuator gives instant circuit isolation
  • Bolt-on surface mount simplifies panel installation
  • 42 V DC rating suits standard vehicle electrical systems
  • Plastic housing resists corrosion in engine compartments

Automotive circuit breaker for auxiliary circuits

This 150 A bolt-on breaker protects accessory wiring in 42 V DC systems. It mounts directly to a surface and uses stud terminals for secure cable attachment. The manual push-to-trip actuator lets you open the circuit quickly during service or emergencies.

Plastic housing with stud terminals and surface

The moulded plastic body resists corrosion and vibration in engine-bay environments. Bolt-on tabs keep the unit fixed without a separate bracket, while the stud connections accept ring terminals that stay tight under load. A manual reset button restores power after a trip without tools.

42 V DC rating defines the operating envelope

The breaker interrupts 150 A at 42 V DC, so it suits auxiliary circuits but not higher-voltage traction packs. Manual reset means the fault must be cleared before power returns, preventing automatic re-close on persistent shorts. Buyers needing automatic cycling or voltages above 42 V DC must choose a different device.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 60% of the 2,768 comparable items (median $21.99).

Specifications

Product
Brand nameBUYERS PRODUCTS

Questions about this item

What voltage and current does the 42V DC breaker interrupt?

It interrupts 150 A at 42V DC, matching its current and voltage ratings.

What stud size and hole spacing does the bolt-on mount need?

The housing is 1 7/8 in wide by 2 7/8 in deep; the stud terminal accepts a ring lug secured by the mounting bolts.

How is the manual-reset push-to-trip breaker installed and reset?

Bolt the base to a flat surface, torque the stud nut on the power lead, then press the actuator to trip and again to reset after a fault.

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