Eaton BK/CB123-30HB Automotive Circuit Breaker - 10-32 Stud
Part Number: BK/CB123-30HB
Quick Summary
The Eaton BK/CB123-30HB automotive circuit breaker protects critical automotive circuits with reliable, fast-acting interruption for demanding vehicle environments. Engineers and procurement teams regularly contend with tight panel space, complex harness routing, and retrofit constraints; this unit’s compact footprint and 10-32 stud connection streamline installation. RoHS compliance is confirmed, and factory support can verify additional regulatory certifications as needed, helping maintain compliance across regional programs. Choosing the Bussmann CB123-HB family delivers predictable protection, reduced maintenance, and lower lifecycle costs for automotive harnesses, power distribution, and equipment protection in harsh environments.
Product Information
Extended Description
BK/CB123-30HB Eaton: Eaton Bussmann series C.B.123-HB automotive circuit breaker, 30A, Heavy duty, Type III, 10-32 TPI stud
Product Name
Eaton Bussmann series CB123-HB automotive circuit breaker
Catalog Number
BK/CB123-30HB
UPC
051712614436
Product Length/Depth
0.55 in
Product Height
2.1 in
Product Width
1.7 in
Product Weight
0.44 lb
Compliances
RoHS Compliant Contact factory
Amperage Rating
30 A
Connection
#10-32 TPI stud
Quantity
6
Used with
lengthwise bracket and cover, quick-connect
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/CB123-30HB
The CB123-HB is rated at 30 A and built as a heavy-duty Type III automotive circuit breaker, delivering reliable current interruption under demanding conditions. This precise protection reduces nuisance trips and protects wiring harnesses in critical vehicle circuits. The connection uses a #10-32 TPI stud, enabling a secure, compact termination that simplifies routing in tight control panels. With an overall footprint of approximately 0.55 in depth, 2.1 in height, and 1.7 in width, installation fits crowded enclosures. RoHS compliance ensures regulatory alignment for modern assemblies, while Eaton’s factory support can confirm additional certifications if required. Compatibility with lengthwise bracket and cover and quick-connect options provides flexible mounting and faster service, reducing downtime in field repairs. Adopting the CB123-HB family supports lifecycle cost reduction through dependable protection, straightforward replacement, and consistent performance across automotive and heavy equipment applications.
Get a Quick Quote for a Eaton BK/CB123-30HB
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton BK/CB123-30HB?
Enquire Now
FAQs
BK/CB123-30HB uses a #10-32 TPI stud for termination and is designed to fit automotive control panels with lengthwise bracket and cover or quick-connect harnesses. Ensure the mounting area accommodates its 0.55 inch depth and 2.1 inch height while leaving space for heat dissipation and cable routing. Verify panel clearance and secure mounting with standard hardware.
The breaker is a 30 A device from the Bussmann CB123-HB family, intended for heavy-duty automotive circuits. It features a #10-32 TPI stud terminal and RoHS compliance. Its dimensions are approximately 0.55 in depth, 2.1 in height, and 1.7 in width, with a weight of about 0.44 lb, suitable for compact installations.
This 30 A automotive circuit breaker excels in vehicle electrical distribution, harness protection, and heavy equipment power circuits where space is constrained. Its Type III construction and robust connection support reliable protection in harsh environments, while compatibility with lengthwise brackets and quick-connect options simplifies mounting in dashboards, engine bays, or control panels.
Yes, BK/CB123-30HB is RoHS compliant per its general specification. For additional safety or regional certifications such as CE or UL, consult Eaton directly or verify with the factory, as such certifications may vary by region and production lot.
The 30 A CB123-HB delivers durable fault protection with low nuisance trips, reducing wear on electrical wiring and components. Its solid terminal connection and rugged Type III design contribute to longer service intervals, easier replacement, and lower lifecycle costs in automotive harnesses and power distribution networks.