Eaton BK/CBP-40B Automotive Circuit Breaker - RoHS
Part Number: BK/CBP-40B
Quick Summary
Eaton CBP automotive circuit breaker protects automotive circuits by interrupting faults quickly. Engineers often struggle with finding a device that fits both the stud-terminal connection and space-limited enclosures without compromising protection. This model notes RoHS compliance and aligns with Eaton’s Bussmann series standards; check with the factory for additional certifications if needed. With a 40 A rating and a compact footprint, it delivers reliable overcurrent protection while simplifying wiring and inventory management. It is designed for lengthwise bracket installations and standard #10-32 TPI stud connections, helping reduce installation time and field rework in automotive harnesses and industrial control panels.
Product Information
Extended Description
BK/CBP-40B Eaton: Eaton Bussmann series C.B.P automotive circuit breaker, 40A, I, Stud-terminal, 10-32 TPI stud
Product Name
Eaton Bussmann series CBP automotive circuit breaker
Catalog Number
BK/CBP-40B
UPC
051712252775
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.047 lb
Compliances
RoHS Compliant Contact factory
Amperage Rating
40 A
Connection
#10-32 TPI stud
Quantity
6
Used with
lengthwise bracket
Bussmann series 4-foot automotive planogram no.10730
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - BK/CBP-40B
40 A amperage rating provides robust overcurrent protection for automotive circuits, reducing the risk of component damage and unexpected downtime. This makes it suitable for protection in harnesses and small control panels where space is at a premium, improving system uptime and reliability. The stud-terminal connection simplifies wiring during installation and maintenance. The #10-32 TPI stud is a common automotive standard, enabling fast, secure terminations and reducing the likelihood of loose connections that can cause arcing or intermittent faults. Lengthwise bracket compatibility eases mounting in compact enclosures. This feature streamlines retrofits and new builds by minimizing mounting hardware and freeing panel real estate, which translates to lower labor costs and faster deployment in factory automation and vehicle systems. RoHS compliance ensures regulatory alignment and safer handling across supply chains. By adhering to restricted substances rules, the breaker supports sustainability initiatives and reduces compliance risk for customers shipping into global markets. Lightweight design (0.047 lb) and a modest pack size (six units per package) help reduce shipping costs and stocking complexity for maintenance teams. The combination of low weight and bulk helps in field service where space and weight budgets matter. Compatibility with Bussmann series components means easier cross-reference and stocking in existing parts ecosystems. This reduces procurement friction when replacing or upgrading protection in legacy systems.
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FAQs
Install BK/CBP-40B by mounting it with the #10-32 TPI stud terminals to the dedicated studs in your panel backplane or enclosure. Use the lengthwise bracket where specified to ensure alignment, then tighten the studs to manufacturer torque guidelines. Verify electrical isolation before powering the system and check RoHS compliance for material handling.
BK/CBP-40B carries a 40 A amperage rating and uses a sturdy #10-32 TPI stud connection for reliable terminations. This combination supports consistent protection in automotive harnesses and compact panels, reduces voltage drop across connections, and makes replacement straightforward during maintenance cycles. RoHS compliance and pack quantity of six further support easy procurement.
Yes, BK/CBP-40B is designed for lengthwise bracket installations, which simplifies mounting in tight enclosures. Typical applications include automotive harness protection and compact industrial control panels where space is at a premium, enabling quick retrofits and streamlined panel builds with standard stud terminals.
The model is RoHS compliant, supporting regulatory conformity across many regions. Additional certifications may be available through Eaton; verify with the datasheet or contact the factory for confirmation on CE, UL, or other approvals as your project requires.
Using BK/CBP-40B reduces downtime through reliable overcurrent protection, and its lightweight design lowers shipping and handling costs. Pack quantity of six improves procurement efficiency, while standard stud terminals speed installation and replacements, delivering lower total cost of ownership for automotive and industrial systems.