Eaton CBC-50HB automotive circuit breaker - 1.5 kAIC
Part Number: CBC-50HB
Quick Summary
CBC-50HB automotive circuit breaker protects DC automotive circuits against overloads in power distribution networks. Engineers often wrestle with nuisance trips and tight panel spaces, and this unit delivers predictable, selective protection to minimize downtime. Compliances and certifications vary by region, so verify with Eaton for your market and requirements, keeping in mind automotive CE, IP, and SIL considerations where applicable. The 14 Vdc rating aligns with typical vehicle electrical systems, while the compact footprint supports easy integration into existing layouts, reducing weight and improving serviceability for fleet maintenance and industrial applications. For broader reliability, this CBC-HB model complements other electrical protection and circuit control solutions from Eaton, helping engineers meet regulatory expectations and improve uptime.
Product Information
Extended Description
CBC-50HB Eaton: Eaton Bussmann series CBC-HB automotive circuit breaker, 14 Vdc, 50 A, 1.5 kAIC, Type I, 10-32 TPI stud
Product Name
Eaton Bussmann series CBC-HB automotive circuit breaker
Catalog Number
CBC-50HB
UPC
051712593311
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
50 A
Interrupt rating
1.5 kAIC
Voltage rating
14 Vdc
Connection
#10-32 TPI stud
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Eaton Specification Sheet - CBC-50HB
Feature: 14 Vdc, 50 A, 1.5 kAIC, Type I. Business Impact: Provides robust overcurrent protection with clear fault interruption, reducing the likelihood of collateral damage and fire risk in automotive circuits. Application: Automotive power distribution, engine bays, and vehicle control modules where stable protection is required. Feature: #10-32 TPI stud connection. Business Impact: Simplifies harness routing and mounting, accelerating installation and reducing wiring errors. Application: Standard automotive harnesses and panel assemblies in engine compartments and service bays. Feature: Dimensions and weight (13.31 in x 9.63 in x 1.94 in, 0.34 lb). Business Impact: Space-efficient footprint enables easier integration in crowded panels and compact enclosures. Application: Vehicle electrical panels and compact industrial control centers needing DC protection with minimal footprint. Feature: Compliances marked as Contact factory. Business Impact: Ensures proper certification validation for regulated environments and enables procurement teams to request the exact approval documents. Application: Aerospace, military, or regulated automotive applications where formal approvals are required. Feature: CBC-HB series lineage and reliability. Business Impact: Leverages Eaton Bussmann credibility for durable automotive protection, reducing maintenance and replacement costs. Application: Fleet maintenance, OEM integrations, and service shops seeking proven DC protection solutions. Insight: This device supports long-term reliability and installation efficiency in automotive protection and control scenarios, aligning with DC protection strategies for 14 V systems and offering practical advantages in fleet and industrial contexts.
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FAQs
CBC-50HB uses a #10-32 TPI stud connection and measures 13.31 in by 9.63 in by 1.94 in with a weight of about 0.34 lb. Plan space in the vehicle panel, provide appropriate mounting hardware, and route wiring to minimize vibration exposure. Ensure compatible harnesses and allowances for service access during maintenance.
CBC-50HB has a 1.5 kAIC interrupt rating, meaning it can interrupt fault currents up to 1.5 kiloampere at the rated 14 Vdc. This reduces the risk of arc flash, wire damage, and insulation failure in high-current automotive faults, supporting safer operation and longer circuit life in DC power systems.
Yes. CBC-50HB uses a #10-32 TPI stud connection, which aligns with common automotive bus bars and harness connectors. This simplifies installation, lowers adapter costs, and enables straightforward integration into existing vehicle electrical architectures and service panels.
Compliances are listed as Contact factory, so verify the exact certifications and test reports with Eaton for your market. Depending on the region and application, you may obtain CE, IP-related, or SIL considerations through the manufacturer’s official documentation and approval packages.
The 50 A, 1.5 kAIC CBC-50HB is designed for reliable, low-maintenance protection, which can reduce unplanned downtime and repair costs in fleets. Regular inspection of mounting and wiring, plus keeping spare units on hand for rapid replacement, minimizes downtime and improves overall uptime in automotive and industrial DC power systems.