Eaton CB185P-110 automotive circuit breaker - 3 kAIC
Part Number: CB185P-110
Quick Summary
The Eaton CB185P-110 automotive circuit breaker protects 48 Vdc power circuits in panels and mobile equipment. Engineers often contend with nuisance trips, tight spaces, and difficult field maintenance in automotive enclosures. RoHS compliant and designed for panel mounting with a switchable operation, the CB185P-110 supports reliable protection in harsh environments. With an 110 A rating and 3 kAIC interrupt capacity, it minimizes downtime and simplifies integration with Bussmann-series boards and standard panel hardware. That combination translates to easier stocking, faster replacements, and consistent protection across multiple vehicle applications. These attributes support regulated procurement and green compliance goals for equipment OEMs and service providers.
Product Information
Extended Description
CB185P-110 Eaton: Eaton Bussmann series C.B.185P automotive circuit breaker, Switchable, 48 Vdc, 110A, 3 kAIC, Type III, High amp
Product Name
Eaton Bussmann series CB185P automotive circuit breaker
Catalog Number
CB185P-110
UPC
051712624558
Product Length/Depth
1.9 in
Product Height
2.9 in
Product Width
2.1 in
Product Weight
0.18 lb
Compliances
Contact factory RoHS Compliant
Amperage Rating
110 A
Interrupt rating
3 kAIC
Voltage rating
48 Vdc
Mounting Method
Panel
Special features
Switchable
Bussmann series 4-foot automotive planogram no.10730
CB185P-110~TYPE 3 HI AM PANEL MOUNT CB - 110 AMP
CB185P-110~TYPE 3 HI AM PANEL MOUNT CB - 110 AMP
Bussmann series Fuseology
Eaton Specification Sheet - CB185P-110
Feature: 48 Vdc operation with 110 A rating and a 3 kAIC interrupt capacity. Business Impact: provides reliable protection for high-current automotive circuits, reducing damage from overloads and nuisance trips. Application: ideal for panel-mounted DC power rails in trucks, buses, and industrial mobile equipment. Feature: Switchable Type III design and panel-mount compatibility. Business Impact: enables quick resets in the field without wiring changes, reducing service time and maintenance costs. Application: fits standard panel hardware in Eaton Bussmann series installations, easing integration with existing harnesses. Feature: RoHS compliant. Business Impact: simplifies cross-border procurement and regulatory compliance, lowering supply-chain risk. Application: suitable for automotive and industrial OEMs requiring RoHS in DC protection devices. Feature: Compact footprint (1.9 in depth, 2.9 in height, 2.1 in width) and light weight (0.18 lb). Business Impact: saves panel space and reduces vehicle weight, supporting compact control panel designs. Application: ideal for space-constrained DC protection in EVs and small machines. Feature: Key electrical specs—110 A, 48 Vdc, 3 kAIC. Business Impact: ensures reliable protection with predictable trip behavior, minimizing over- or under-protection. Application: straightforward integration with Bussmann-series protection schemes and standard automotive wiring.
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FAQs
Yes. The CB185P-110 is specifically rated for 48 Vdc systems with an 110 A amperage rating and a 3 kAIC interrupt capacity, making it well suited for protecting automotive DC power rails in panels and mobile equipment. Its switchable operation supports quick recovery after fault events, minimizing downtime.
The CB185P-110 is designed for panel mounting. Its compact dimensions (1.9 in depth, 2.9 in height, 2.1 in width) and 0.18 lb weight help save enclosure space and enable denser panel layouts. Installation aligns with standard Bussmann-series panel hardware, facilitating straightforward wiring and replacement in existing automotive protection schemes.
A 3 kAIC interrupt rating indicates the maximum short-circuit current the breaker can interrupt without damage. This provides robust protection for high-current automotive circuits, reducing the risk of collateral damage to wiring and components during fault events and supporting reliable system uptime in mobile equipment.
Yes, the CB185P-110 is RoHS compliant. This reduces regulatory risk for global procurement and simplifies supplier qualification for OEMs and integrators, particularly in regions with strict environmental standards. RoHS compliance supports sustainable design practices without compromising electrical protection performance.
Maintenance primarily involves periodic inspection of connections and ensuring the panel-mount hardware remains secure. Replacement decisions should consider operating hours, exposure to harsh automotive environments, and any observed nuisance trips. The CB185P-110’s switchable feature supports quick field testing and reset after fault events, helping maintain system availability.