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Plastic automotive circuit breaker, bolt-on mount, stud terminals, 150 A 42V DC

Buyers Products Company

Buyers Products Company CB150 Automotive Circuit Breaker 150 A 42V DC

SKU CH-MJA9-6BAMR

Protects accessory circuits with a 150 A automatic-reset breaker rated for 42V DC

  • Automatic reset restores power without manual intervention
  • 150 A rating protects heavy-duty accessory circuits
  • 42V DC voltage suits standard automotive systems
  • Bolt-on surface mount simplifies installation
  • 150 A interrupt capacity handles fault currents safely

High-amperage circuit protection

The Buyers Products CB150 is a hi-amp circuit breaker rated for 150 A at 42V DC. It is designed to protect accessory circuits in automotive and heavy-duty electrical systems from overload conditions. The automatic reset function restores power once the fault clears, reducing downtime for fleet and equipment operators.

150 A continuous rating with automatic recovery

The device carries a 150 A current rating and an interrupt rating of 150 A at 42V DC, making it suitable for high-draw accessories such as winches, lift gates or auxiliary lighting. It is not intended for circuits exceeding 42V DC or for applications requiring a manual-reset or switchable breaker. Buyers needing protection above 150 A or at higher voltages must select a different device.

Bolt-on mounting with stud terminals

A plastic housing measures 2 7/8 in deep by 1 7/8 in wide and uses a bolt-on surface mount for secure attachment to a firewall or chassis. Stud terminals accept ring terminals for a vibration-resistant connection common in commercial vehicles. The automatic reset mechanism cycles without user intervention, which is convenient but unsuitable for circuits where a persistent fault must be investigated before power returns.

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

Does the 150 A automatic-reset breaker suit accessory circuits that run on 42 V DC?

Yes, the CB150 is rated 150 A at 42 V DC with a 150 A interrupt rating, so it protects accessory circuits at that voltage.

How can I confirm the breaker is operating correctly once installed?

Apply load to the protected circuit; the breaker should carry up to 150 A continuously and automatically reset after an overload without manual intervention.

What comes in the box and what must be sourced separately?

The box contains the bolt-on, surface-mount breaker with stud terminals; mounting hardware and wiring are not included and must be purchased separately.

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