Bussmann BKCB221 Automotive ATC Resettable Circuit Breaker

Bussmann BKCB221 Automotive ATC Resettable Circuit Breaker

The Bussmann BKCB221 is an automotive-style circuit breaker built on a type I ATC footprint, rated 14 Vdc with a 150 AIC interrupt rating for dependable overcurrent protection in low-voltage DC systems, and available in 10A, 15A, and 25A ratings to match a range of automotive circuit loads. Its compact, drop-in profile matches standard ATC fuse block openings, making it a straightforward replacement or upgrade in RVs, automotive circuits, and GM vehicles. Housed in a rugged automotive-grade body, this Bussmann breaker resets circuit protection after a fault instead of requiring a blown fuse to be discarded and replaced, reducing downtime for fleet and service technicians working on low-voltage DC electrical systems.

Key Features

• Amperage Range: Available in 10A, 15A, and 25A ratings to provide precise overcurrent protection across common automotive circuit loads.
• Voltage Rating: 14 Vdc rating matches standard automotive and RV low-voltage DC electrical systems.
• Interrupt Rating: 150 AIC interrupt capacity safely clears fault currents without damaging the breaker or circuit.
• ATC Footprint: Automotive, type I ATC footprint drops directly into standard ATC fuse block slots for a simple, tool-friendly installation.
• Resettable Protection: Unlike a single-use fuse, this breaker resets after a fault trips, cutting repeat maintenance trips for fleet and service technicians.
• Compact Sizing: Measures 1.3 IN long, .76 IN high, and .22 IN wide at just .2 LB, fitting standard automotive fuse panel footprints.
• Application-Ready: Engineered for RVs, automotive circuits, and GM vehicles where resettable circuit protection is preferred over single-use fuses.
• Bulk Packaging: Available in a packaging quantity of 100 for fleet maintenance, OEM assembly, and service-stock replenishment.

Technical Specifications

• Special Features: Packaging quantity 100
• Item Quantity: Q6
• Application: RVs, automotive circuits, GM vehicles

Typical Applications

• RV Electrical System Circuit Protection
• Automotive Circuit Protection
• GM Vehicle Wiring Repair and Replacement
• Fleet Maintenance and Service Stock
• Low-Voltage DC Power Distribution

Why Bussmann?

Bussmann circuit breakers are engineered for dependable overcurrent protection, and the BKCB221 series backs that reputation with a 150 AIC interrupt rating, 14 Vdc capability, and a standard ATC footprint for simple, drop-in replacement across 10A, 15A, and 25A ratings. For technicians and fleet managers servicing RVs, automotive circuits, and GM vehicles, this Bussmann breaker delivers resettable, low-voltage DC protection built for repeated professional use.