Eaton CBC-20BWP Automotive Circuit Breaker - 1.5kAIC
Part Number: CBC-20BWP
Quick Summary
The Eaton CBC-20BWP automotive circuit breaker protects 14 Vdc vehicle circuits, delivering reliable overcurrent protection for automotive electrical systems. Engineers often contend with harsh environments, vibration, and moisture that can degrade contacts. The CBC-20BWP addresses these challenges with a waterproof rugged enclosure and a secure #10-32 TPI stud connection, ensuring consistent performance. Compliance details vary by market; Eaton lists 'Contact factory' for certain requirements, so confirm approvals relevant to your region. For design and procurement teams, this compact breaker provides reliable protection without adding bulk, reducing maintenance overhead in protective circuits.
Product Information
Extended Description
CBC-20BWP Eaton: Eaton Bussmann series CBC-BWP automotive circuit breaker, 14 Vdc, 20 A, 1.5 kAIC, Type I, Waterproof, 10-32 TPI stud
Product Name
Eaton Bussmann series CBC-BWP automotive circuit breaker
Catalog Number
CBC-20BWP
UPC
051712271059
Product Length/Depth
0.55 in
Product Height
1.93 in
Product Width
1.7 in
Product Weight
0.5 lb
Compliances
Contact factory
Amperage Rating
20 A
Interrupt rating
1.5 kAIC
Voltage rating
14 Vdc
Connection
#10-32 TPI stud
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Eaton Specification Sheet - CBC-20BWP
Feature 14 Vdc DC rating and 20 A current capability → Business Impact Provides targeted protection for vehicle electrical loads with predictable trip behavior, reducing fuse-related downtime and extending component life. Application Automotive DC power distribution, engine bays, and auxiliary circuits. Feature 1.5 kAIC interrupt rating → Business Impact High fault current capability minimizes wiring damage and catastrophic failures, improving system resilience in transient automotive faults. Application Heavy-duty protection for battery-fed circuits in trucks, RVs, and off-road equipment. Feature Type I and waterproof housing → Business Impact Enables reliable operation in wet, vibration-prone environments, lowering maintenance costs and warranty claims. Application Exterior panels, marine automotive, and exposed engine compartments. Feature #10-32 TPI stud connection → Business Impact Provides a robust, vibration-resistant electrical interface that simplifies harness design and assembly. Application Panel-mount and bulkhead installations with standard stud terminals. Feature Compact footprint (0.55 in depth, 1.93 in height, 1.7 in width) → Business Impact Saves space in tight electrical panels, enabling cleaner harness routing and faster installation. Application Integrated vehicle electrical centers and compact fuse/breaker blocks. Feature Weight around 0.5 lb → Business Impact Lightweight protection option that minimizes weight penalties in performance vehicles and fleet applications. Application Aerospace-adjacent automotive installations and mobile equipment where weight matters. Note: Compliances are listed as 'Contact factory' for certain markets, so verify exact regulatory applicability with Eaton to ensure CE/UL or region-specific approvals as part of your procurement workflow.
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FAQs
Install the CBC-20BWP using the #10-32 TPI stud terminals and mount in a protected panel area. The unit has a compact footprint (0.55 in depth, 1.93 in height, 1.7 in width) and weighs about 0.5 lb, simplifying harness routing and reducing panel crowding. Ensure the 14 Vdc system is within the rated range and that connections are clean and secure to maintain waterproof performance.
The CBC-20BWP is rated for 14 Vdc, with a 20 A continuous amperage rating and a 1.5 kAIC interrupt rating. It is a Type I automotive circuit breaker designed for direct DC protection of vehicle electrical loads, with a #10-32 TPI stud connection for secure harness integration.
Yes. The unit is designed for harsh environments and is described as waterproof, making it well suited for exposed automotive and marine applications. Always verify the exact IP or environmental certifications with Eaton for your specific region and application, as regional requirements vary.
The specification notes 'Compliances: Contact factory,' so exact certifications (such as CE or UL) should be confirmed with Eaton for your market. This ensures you meet regional regulatory requirements and any vehicle-specific approvals before deployment.
By providing reliable 14 Vdc protection with a high 1.5 kAIC interrupt rating in a compact, waterproof package, the CBC-20BWP reduces downtime from faults, lowers maintenance costs, and protects critical vehicle electronics. Its robust stud connection improves harness reliability, contributing to longer service life and fewer warranty claims in fleet or OEM environments.