Eaton Bussmann CB211 automotive circuit breaker - Type I ATM
Part Number: BK/CB211-10
Quick Summary
The Eaton Bussmann CB211 automotive circuit breaker provides reliable overcurrent protection for automotive electrical systems and harnesses. When a fault occurs, downtime and component damage can escalate quickly, so this compact unit helps isolate the fault without requiring bulky alternatives. With 14 Vdc operation, a 10 A rating, and a 150 AIC interrupt rating, it aligns with common automotive protection needs; verify CE, SIL, or IP certifications with the factory as applicable to your market. Packaged for scalable stocking and easy integration, it supports OEM assembly lines and aftermarket service strategies, delivering consistent protection while simplifying maintenance and service planning.
Product Information
Extended Description
BK/CB211-10 Eaton: Eaton Bussmann series CB211 automotive circuit breaker, Packaging quantity 100, 14 Vdc, 10 A, 150 AIC, Type I ATM footprint
Product Name
Eaton Bussmann series CB211 automotive circuit breaker
Catalog Number
BK/CB211-10
UPC
051712846745
Product Length/Depth
0.49 in
Product Height
0.25 in
Product Width
1.42 in
Product Weight
0.1 lb
Compliances
Contact factory
Amperage Rating
10 A
Interrupt rating
150 AIC
Voltage rating
14 Vdc
Quantity
6
Special features
Packaging quantity 100
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Eaton Specification Sheet - BK/CB211-10
14 Vdc operation with a 10 A rating and 150 AIC interrupt rating delivers precise protection for automotive power rails, reducing wiring insulation damage and protecting sensitive electronics. This translates to lower warranty costs and less downtime during fault events, especially in high-volume production environments. The Type I ATM footprint ensures plug-and-play compatibility with standard automotive protection layouts, simplifying board and harness integration and reducing redesign costs. With a compact footprint (0.49 in L, 0.25 in H, 1.42 in W) and light weight (0.1 lb), installers gain space savings in crowded control panels and engine bays, enabling easier maintenance and faster replacement. Packaging quantity of 100 units supports bulk stocking for OEMs and service centers, improving spare part availability while stabilizing procurement costs. The Eaton Bussmann lineage adds reliability and traceability, a critical factor for risk-managed automotive programs. Compliances are listed as contact factory, so engineers can validate CE/SIL/IP or region-specific standards before qualification. This device is compatible with Bussmann automotive protection schemes, allowing seamless integration with existing fuse and breaker portfolios and reducing training time for maintenance staff.
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FAQs
Install BK/CB211-10 by locating the protected circuit within the harness or control module, aligning with the Type I ATM footprint for a secure fit, and routing leads to minimize vibration exposure. Ensure 14 Vdc supply and the protected circuit fall within the 10 A trip rating. Use proper crimping tools, verify polarity, and secure the unit to a stable panel to prevent movement under vibration. After installation, perform a functional check to confirm the circuit is protected and that diagnostic lines remain accessible for servicing.
The 150 AIC (Ampere Interrupting Capacity) rating specifies the maximum fault current the breaker can interrupt safely without damage. In automotive applications, this translates to robust protection against short circuits that can surge beyond normal operating currents. Selecting a breaker with a high AIC helps prevent collateral damage to wiring, connectors, and adjacent devices while maintaining safe isolation during fault events.
BK/CB211-10 is specified for 14 Vdc operation, which aligns with modern automotive electrical architectures. For 12 V systems, verify the current carrying capacity and trip characteristics with Eaton or the product datasheet, as the internal trip thresholds may behave differently at lower voltages. In all cases, ensure the protected circuit operates within the 10 A rating and that the installation environment meets temperature and vibration tolerances.
Certifications for this specific unit are not listed in the data; Compliances are marked as 'Contact factory.' To confirm CE, SIL, or IP ratings for your region and application, contact Eaton’s technical support or your authorized distributor. They can provide the current certification status, testing reports, and any region-specific requirements needed for regulatory submission or customer qualification.
The BK/CB211-10 offers rapid fault isolation and reliable protection, reducing downtime and costly wiring damage in faults. Its compact footprint and 100-pack packaging support lean inventory for high-volume manufacturing and service operations, cut maintenance labor time, and simplify component replacement during vehicle service cycles. Over the life of the program, you can expect lower warranty costs and fewer field failures due to improved protection strategy.