Eaton CBC-30HB CBC-HB automotive circuit breaker - 10-32 stud
Part Number: CBC-30HB
Quick Summary
CBC-HB automotive circuit breaker protects automotive power circuits by interrupting fault currents, reducing wiring damage and downtime. Engine compartments and space-constrained power centers often suffer nuisance trips; this unit delivers rugged automotive-grade protection with a compact footprint and straightforward serviceability. Compliance details are listed as 'Contact factory' in the datasheet, so verify with Eaton’s CBC-30HB specification sheet to confirm applicable standards. With a 14 Vdc rating and 30 A protection, it supports harsh vehicle electrical environments while enabling easy integration with #10-32 TPI studs. Used in OEM and aftermarket scenarios, it helps streamline spare-part inventories and improves overall system reliability for automotive power distribution.
Product Information
Extended Description
CBC-30HB Eaton: Eaton Bussmann series CBC-HB automotive circuit breaker, 14 Vdc, 30 A, 1.5 kAIC, Type I, 10-32 TPI stud
Product Name
Eaton Bussmann series CBC-HB automotive circuit breaker
Catalog Number
CBC-30HB
UPC
051712595469
Product Length/Depth
13.31 in
Product Height
9.63 in
Product Width
1.94 in
Product Weight
0.34 lb
Compliances
Contact factory
Amperage Rating
30 A
Interrupt rating
1.5 kAIC
Voltage rating
14 Vdc
Connection
#10-32 TPI stud
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Eaton Specification Sheet - CBC-30HB
Feature 14 Vdc rating with 30 A protection → Business impact ensures fast, reliable fault interruption in vehicle electrical circuits, reducing risk of harness damage and unplanned downtime; Application suitable for 14 Vdc automotive systems and battery feeds in engine bays. Feature 1.5 kAIC interrupt rating → Business impact delivers robust short-circuit protection, minimizing conductor damage and protecting sensitive modules; Application in high-current bursts during start and load transients. Feature Type I trip characteristic → Business impact provides predictable opening behavior under fault conditions, improving diagnostic clarity and maintenance planning; Application in critical vehicle power rails where fast, clean trips are essential. Feature #10-32 TPI stud connections → Business impact simplifies installation and replacement with common hardware, reducing mounting effort and inventory complexity; Application in standard automotive harnesses and fuse-block interfaces. Feature Compact footprint and clearances → Business impact saves space in tight engine compartments, enabling retrofits and cleaner wiring looms; Application in retrofit projects and new vehicle integrations. Feature Compliances listed as contact factory → Business impact ensures engineering teams verify exact regulatory alignment before deployment; Application in regulated automotive programs. Industry context notes: CBC-HB family is widely adopted for automotive protection, with compatibility considerations for Bussmann series accessories and vehicle-grade connectors. These attributes support reliability engineering, cost control, and faster field service for automotive OEMs and integrators.
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FAQs
When installing the CBC-30HB, ensure the #10-32 TPI stud connections are clean and properly torqued to spec to avoid loose connections that can cause heating or arcing. Mount on a stable surface with adequate ventilation, and position the breaker in an accessible location for quick reset and replacement during maintenance or fault isolation.
Yes. The CBC-30HB is designed for 14 Vdc automotive systems and uses standard #10-32 TPI stud terminals, aligning with many Bussmann CBC-HB family interfaces. It integrates with typical engine-bay fuse blocks and power distribution networks, simplifying replacement and field retrofits while maintaining reliable fault protection.
Key specs include voltage rating of 14 Vdc, amperage rating of 30 A, and interrupt rating of 1.5 kAIC. The CBC-30HB’s Type I trip characteristic provides predictable interruption behavior under fault conditions, supporting durable protection for wiring harnesses, relays, and critical load circuits in automotive installations.
Compliance details are listed as 'Contact factory' in the datasheet. For regulatory alignment, consult Eaton’s CBC-30HB specification sheet and verify with your procurement and quality teams; use the official datasheet to confirm any region-specific automotive standards or certifications before deployment.
The 30 A rating with 1.5 kAIC interrupt capability minimizes catastrophic damage during faults, reducing repair costs and downtime. Its robust automotive design lowers nuisance trips in mission-critical circuits, while standard stud connections simplify stocking and replacement, delivering lower maintenance costs and faster service in fleet operations.