Bussman BP/CBC-40B-RP​ Auto Circuit Breaker, 40A

Bussman BP/CBC-40B-RP Auto Circuit Breaker, 40A

The CBC40B Bussmann BP/CBC-40B-RP Auto Circuit Breaker is a Type-I automatic reset circuit breaker designed to protect 12-volt DC electrical systems from overload and short circuits. Built with Bussmann’s patented fail-safe technology, it automatically resets after the fault clears, helping keep equipment running while maintaining circuit protection. The breaker features two 10-32 threaded studs and a crosswise mounting bracket for secure installation in automotive, agricultural, and equipment electrical systems—because protecting your wiring is far cheaper than replacing it after the smoke escapes.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: CBC40B / BP-CBC-40B-RP
• Brand: Bussmann
• Product Type: Automatic reset circuit breaker
• Breaker Type: Type-I (automatic reset)
• Amperage Rating: 40 Amps
• Voltage Rating: 12 Volt DC
• Connection Type: Two 10-32 threaded studs
• Mounting Style: Crosswise mounting bracket
• Protection Function: Overload and short circuit protection
• Technology: Patented fail-safe design
• Compliance: Meets SAE J553 standard

Ideal For

• Automotive and equipment electrical systems
• 12-volt DC circuits requiring automatic reset protection
• Agricultural machinery and utility vehicles
• Accessory circuits such as lights, pumps, and motors
• Situations where saving your wiring from overload is preferable to testing how fast it can melt