Eaton CB185-100 Automotive Circuit Breaker - 3 kAIC
Part Number: CB185-100
Quick Summary
CB185-100 automotive circuit breaker protects 48 Vdc automotive circuits by interrupting faults quickly. This design helps prevent cascading failures and reduces repair downtime when faults occur in demanding vehicle electrical systems. While RoHS compliance is confirmed, specific CE or IP certifications are not listed in the datasheet; confirm with the factory for any region-specific approvals. For fleet operators and OEMs, the combination of rugged waterproof housing and high interrupt capability supports reliable operation in harsh environments, while the flush-mount profile simplifies panel integration. This product also aligns with automotive protection strategies and 48 V system architectures, contributing to safer, more maintainable power distribution.
Product Information
Extended Description
CB185-100 Eaton: Eaton Bussmann series C.B.185 automotive circuit breaker, Switchable, 48 Vdc, 100A, 3 kAIC, Type III, High amp, Single-pole, Waterproof
Product Name
Eaton Bussmann series CB185 automotive circuit breaker
Catalog Number
CB185-100
UPC
051712596411
Product Length/Depth
1.9 in
Product Height
2.9 in
Product Width
1.68 in
Product Weight
0.23 lb
Compliances
Contact factory RoHS Compliant
Amperage Rating
100 A
Interrupt rating
3 kAIC
Voltage rating
48 Vdc
Material
Waterproof
Number of poles
Single-pole
Packaging Type
Standard
Mounting Method
Flush
Special features
Switchable
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 - CB185-100
Feature → Business Impact → Application: The CB185-100 provides a 100 A amperage rating with a 3 kAIC interrupt capacity, ensuring robust protection for high-current automotive loads without nuisance tripping. This translates to reduced unplanned downtime and lower service costs in fleets and off-road equipment. Application: protects main power feeds in 48 Vdc vehicle systems, including commercial vehicles and construction machinery. Feature → Business Impact → Application: Waterproof housing offers reliable performance in wet or splash-prone environments, lowering corrosion risk and extending service life. Application: engine bays, outdoor control panels, and marine or off-road applications where exposure to moisture is common. Feature → Business Impact → Application: Switchable, single-pole design enables quick manual isolation for maintenance, improving safety and uptime. Application: routine diagnostics and hot-swapping in electrical panels without full system shutdown. Feature → Business Impact → Application: Flush mounting and standard packaging streamline installation, reducing panel cutout time and enabling neater integration with existing Bussmann series components. Application: retrofit projects and new builds requiring compact, space-efficient protection. Feature → Business Impact → Application: RoHS compliance ensures regulatory alignment across jurisdictions, simplifying procurement and compliance reporting. Application: supplier qualification and multi-region deployments. Feature → Business Impact → Application: Type III rating and high-amp capability support durable protection for demanding automotive implementations, boosting reliability in fleets and mobile equipment.
Get a Quick Quote for a Eaton CB185-100
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 CB185-100?
Enquire Now
FAQs
CB185-100 uses a flush mounting method designed for panel integration in standard automotive enclosures. Its compact dimensions (1.9 in length, 2.9 in height, 1.68 in width) simplify fitment in tight spaces and enable clean, OEM-style installations. When planning retrofits, verify pre-cut panel openings align with the device's footprint and ensure secure mounting before wiring.
CB185-100 is rated for 100 A with a 3 kAIC interrupt capacity at 48 Vdc. It is a single-pole, switchable device with a waterproof housing, designed to protect 48 V automotive circuits while enabling safe isolation during maintenance.
This breaker is ideal for protecting main power feeds in 48 V automotive systems, including fleet vehicles, construction equipment, and rugged mobile equipment. Its high interrupt rating and waterproof construction make it suitable for engine compartments, outdoor control panels, and harsh environments where reliability is critical.
The datasheet confirms RoHS compliance. Specific CE or IP ratings are not listed; for regional regulatory requirements, contact Eaton to confirm current approvals and any additional certifications relevant to your application.
By delivering reliable protection for high-current 48 V circuits, CB185-100 reduces fuse failures, minimizes downtime, and simplifies maintenance with its switchable isolation. The waterproof design supports longer service life in harsh environments, contributing to lower lifecycle costs and improved fleet readiness.