Bussmann CB221 Type I ATC Automotive Circuit Breaker, 14 Vdc
The Bussmann CB221 Type I ATC Automotive Circuit Breaker delivers reliable overcurrent protection for 14 Vdc automotive and RV electrical circuits. Built to the standard ATC/ATO automotive fuse footprint, it drops directly into existing ATC-style fuse blocks and holders. The housing is a grey UL-Rated 94V-0 thermoplastic body finished with a gold metal cover on Type I units (silver metal cover on Type II), making the two configurations easy to tell apart at a glance. Across the family this circuit breaker is available in 10A, 15A, 20A, 25A, and 30A ratings, giving installers a durable, drop-in option for automotive and RV circuit protection.
Key Features
- Amp Rating Range: Available in 10A, 15A, 20A, 25A, and 30A ratings to match a range of automotive circuit loads.
- ATC Footprint: Type I design matches the standard ATC/ATO automotive fuse footprint for direct fuse-block compatibility.
- Voltage Rating: Rated 14 Vdc for automotive and RV low-voltage DC circuits.
- Durable Construction: Grey UL-Rated 94V-0 thermoplastic housing supports flame-retardant, heat-resistant performance.
- Metal Cover Identification: Gold metal cover identifies Type I units; silver metal cover identifies Type II units.
- Automotive-Grade Design: Purpose-built for automotive and RV circuit protection applications.
Certifications & Compliance
- UL-Rated 94V-0 Thermoplastic Housing
Technical Specifications
- Application: RVs, automotive circuits.
- Type: Type I (gold metal cover) or Type II (silver metal cover).
- Amp Rating Options: 10A, 15A, 20A, 25A, 30A.
- Voltage: 14 Vdc.
- Housing Material: Grey UL-Rated 94V-0 thermoplastic.
Typical Applications
- Recreational Vehicle (RV) Electrical Systems
- Automotive Circuit Protection
- 14 Vdc Power Distribution Circuits
- ATC/ATO-Style Automotive Fuse Block Retrofits
Why Bussmann?
Bussmann circuit breakers are built with UL-Rated 94V-0 thermoplastic housings for durable, code-compliant performance in demanding automotive and RV environments. The ATC footprint and clearly marked gold and silver metal covers make it simple to identify and install the correct Type I or Type II unit, giving installers dependable, drop-in circuit protection across the 10A-30A range.
Manufacturer Resources
Product Specs
- Application:
- RVs, automotive circuits
- Product Group:
- Fuses
- Product Details:
- Automotive, type I ATC footprint
- Voltage Rating:
- 14 Vdc
- Department:
- Electrical
- Product Subgroup:
- Automotive Fuses
- Product Type:
- Circuit Breaker
- Product Material:
- Thermoplastic
- Product Color:
- Grey
- Amperage Rating:
- 10A - 30A
- Listing:
- UL Listed