Eaton CBC-25B Automotive Circuit Breaker - 1.5 kAIC
Part Number: CBC-25B
Quick Summary
CBC-25B automotive circuit breaker is designed to protect electrical circuits in automotive and industrial DC systems. This device helps engineers eliminate nuisance trips and prevent wiring damage in harsh environments. While the CBC-25B delivers reliable protection with a 1.5 kAIC interrupt rating, verify compliance specifics with Eaton to ensure it meets your exact regulatory requirements. Built for 14 Vdc operation and a 25 A rating, it supports compact, serviceable DC protection in vehicle harnesses and control panels. The combination of Type I characteristics and a #10-32 TPI stud connection supports robust, field-assembled installations, delivering quick, predictable protection with minimal downtime and reduced maintenance costs.
Product Information
Extended Description
CBC-25B Eaton: Eaton Bussmann series CBC-B automotive circuit breaker, 14 Vdc, 25 A, 1.5 kAIC, Type I, 10-32 TPI stud
Product Name
Eaton Bussmann series CBC-B automotive circuit breaker
Catalog Number
CBC-25B
UPC
051712271202
Product Length/Depth
14.75 in
Product Height
7.5 in
Product Width
9.25 in
Product Weight
0.5 lb
Compliances
Contact factory
Amperage Rating
25 A
Interrupt rating
1.5 kAIC
Voltage rating
14 Vdc
Connection
#10-32 TPI stud
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Eaton Specification Sheet - CBC-25B
Feature → Business Impact → Application: The CBC-25B operates at 14 Vdc and 25 A, delivering precise overcurrent protection for automotive DC circuits, reducing the risk of battery drain and wiring damage in harsh environments. This translates to improved system reliability and lower replacement costs in fleet and industrial machinery. Application: protect battery feeds, motor controllers, and DC distribution networks in vehicles and mobile equipment. Feature → Business Impact → Application: Interrupt rating of 1.5 kAIC enables safe interruption of high fault currents, minimizing arcing and extending component life. Application: power distribution paths and critical sensors in harsh automotive or stationary DC applications. Feature → Business Impact → Application: Type I mechanical/electrical characteristics provide predictable tripping behavior, improving fault diagnosis and system stability. Application: control panels and automotive subsystems where fast, selective protection matters. Feature → Business Impact → Application: #10-32 TPI stud connection simplifies mounting and wiring reliability, reducing installation time and ensuring solid, vibration-resistant connections. Application: rugged vehicle harnesses and power modules in off-road or industrial contexts. Feature → Business Impact → Application: Compact, low-weight form factor (0.5 lb listed in spec) supports space-constrained installations, enabling more flexible packaging. Application: modern vehicle electronics housing and portable equipment. Feature → Business Impact → Application: Compliances note to contact factory ensures you get current regulatory documentation and certifications, reducing compliance risk in audits. Application: procurement and compliance workflows that require formal attestations and certificates.
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FAQs
CBC-25B uses a #10-32 TPI stud to secure connections. When installing, verify lug compatibility and torque per Eaton’s datasheet to ensure a tight, vibration-resistant connection. Use proper mechanical support to minimize EMI and maintain electrical integrity in mobile or harsh environments. Always inspect for secure seating after initial power-up.
The CBC-25B is rated for 14 Vdc operation with a 25 A continuous current rating and an interrupt rating of 1.5 kAIC. This combination supports protection of DC power feeds in automotive and industrial systems, providing fast interruption during fault conditions while minimizing nuisance trips in normal operation.
Yes. The CBC-25B is designed for automotive DC protection, with 14 Vdc operation and a 25 A rating, making it well-suited for battery feeds, DC motor controllers, and power distribution in vehicles and mobile equipment. It also supports general DC protection in industrial control panels where space and reliability are critical.
Compliances for CBC-25B are listed as contact factory in the provided data, so confirm the current regulatory certificates with Eaton. When needed, request CE, IP-related, or SIL documentation directly from Eaton to satisfy your QA and regulatory audits. Keeping formal certificates on file helps streamline supplier qualification and compliance reviews.
The CBC-25B provides robust DC protection with a simple installation, reducing the likelihood of arc-related damage and unscheduled downtime. With a reliable 1.5 kAIC interrupt rating and a low-maintenance DC protection solution, you can expect lower repair costs, fewer field failures, and faster fault isolation, yielding measurable total cost of ownership improvements over time.