Eaton CB223-20 automotive circuit breaker - ATC Type III
Part Number: CB223-20
Quick Summary
CB223-20 automotive breaker is a protection device for automotive circuits that delivers fast, reliable overcurrent protection in compact modules. Engineers often struggle with nuisance trips, space constraints, and the need to maintain safe, maintainable enclosures in tight spaces. This device employs UL-rated 94V-0 thermoplastic housing and RoHS compliance, with a gold cover for Type I and silver cover for Type II/III, to meet demanding safety and environmental standards. Leveraging ATC Type III footprint, it enables straightforward drop-in protection in Bussmann-series installations, reducing install time and inventory complexity. By combining robust protection with a small footprint, it supports cost-effective design iterations and long-term reliability in automotive control panels and harness assemblies.
Product Information
Extended Description
CB223-20 Eaton: Eaton Bussmann series CB223 automotive circuit breaker, type III ATC footprint, 20A, 28 Vdc, UL-Rated 94V-0 thermoplastic housing with gold metal cover (type I) or silver metal cover (type II and III)
Product Name
Eaton Bussmann series CB223 automotive circuit breaker
Catalog Number
CB223-20
UPC
051712614818
Product Length/Depth
1.5 in
Product Height
0.25 in
Product Width
0.75 in
Product Weight
0.02 lb
Compliances
Contact factory RoHS Compliant
Amperage Rating
20 A
Voltage rating
24 V DC
Quantity
1
Bussmann series 4-foot automotive planogram no.10730
CB223-20~ATC CB TYPE 3 -MANUAL RESET - 20 AMP
CB223-20~ATC CB TYPE 3 -MANUAL RESET - 20 AMP
Bussmann series Fuseology
Eaton Specification Sheet - CB223-20
Feature: ATC Type III footprint enables quick, compatible integration with existing Bussmann-series automotive protection layouts. Business Impact: Reduces retrofit time and minimizes custom mounting hardware, increasing engineering throughput and lowering total installed cost. Application: Ideal for control modules and wiring harness protection where space is at a premium and fast serviceability is required. Feature: 20 A, 24 V DC electrical rating provides targeted protection for low-voltage automotive circuits. Business Impact: Prevents costly electrical faults and component damage, supporting longer system life and reduced warranty exposure. Application: Instrument clusters, ECU power rails, and sensor circuits in 12–24 V automotive systems. Feature: Manual reset capability supports deliberate, controlled restoration after fault events. Business Impact: Helps avoid unintended resets and reduces field service time by simplifying fault management. Application: Safety-critical automotive modules and protection relays where operator intervention may be needed. Feature: UL-rated 94V-0 thermoplastic housing with optional gold or silver covers enhances durability and fault resistance. Business Impact: Improves flame retardancy and environmental robustness in harsh automotive environments. Application: Enclosures exposed to heat and vibration in engine bays or under-hood environments. Feature: RoHS compliant construction aligns with modern regulatory expectations. Business Impact: Reduces compliance risk and simplifies global supply chain management. Application: All regions with RoHS requirements for electronic protection components. Feature: Compact dimensions (1.5 in L × 0.75 in W × 0.25 in H, 0.02 lb) enable space-efficient installations. Business Impact: Saves panel space and supports lightweight, high-density protection strategies. Application: Multi-channel automotive protection modules and densely packed control boxes.
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FAQs
Yes. CB223-20 features an ATC Type III footprint designed for seamless drop-in replacement in Bussmann-series automotive protection assemblies. Its compact 1.5 in length and 0.75 in width simplify panel layouts, while standard 24 VDC ratings ensure compatibility with typical automotive power rails. The manual-reset option further reduces commissioning time during maintenance and testing.
CB223-20 provides 20 A current rating at 24 V DC, suitable for protecting low-voltage automotive circuits. It uses a UL-rated 94V-0 thermoplastic housing for safety and flame retardancy, and the device supports a manual reset for controlled fault recovery. Its RoHS-compliant construction helps meet modern regulatory and sustainability requirements.
CB223-20 is ideal for protection in compact automotive control modules, wiring harness sections, instrument clusters, and battery-management circuits. Its Type III footprint and small form factor make it well-suited for space-constrained enclosures, while its reliable overcurrent protection improves component longevity and reduces field service events in harsh automotive environments.
CB223-20 is RoHS compliant and features a UL-rated 94V-0 thermoplastic housing, supporting safety and environmental compliance in regulated markets. The ATC Type III footprint also ensures compatibility with standardized automotive protection systems, simplifying integration into existing product families and customer-approved architectures.
The device’s compact size, manual reset, and drop-in ATC Type III compatibility reduce installation time and parts stocking needs, lowering maintenance labor and inventory costs. Its robust 20 A/24 VDC protection helps prevent costly electrical faults and downtime, delivering a favorable return on investment in high-volume automotive assemblies.