Eaton BK/CB184F-120 automotive circuit breaker - Waterproof

Part Number: BK/CB184F-120
Manufacturer
Eaton
Part number
BK/CB184F-120

Quick Summary

BK/CB184F-120 automotive circuit breaker protects automotive electrical circuits from overloads. In rugged vehicle environments, moisture, dust, and tight enclosures challenge reliable protection, but this unit’s waterproof design helps keep critical circuits safe. It carries RoHS compliance and a Type I rugged design, with certifications available from the manufacturer to support traceability and quality. For design-in, it aligns with standard Bussmann series family characteristics and supports flush mounting, SEMS nuts, and standard packaging, delivering predictable procurement and streamlined maintenance.

Product Information

Extended Description

BK/CB184F-120 Eaton: Eaton Bussmann series C.B.184F automotive circuit breaker, 120A, Type I, Waterproof
Product Name
Eaton Bussmann series CB184F automotive circuit breaker
Catalog Number
BK/CB184F-120
UPC
051712621472
Product Length/Depth
1.3 in
Product Height
0.76 in
Product Width
0.22 in
Product Weight
0.5 lb
Compliances
RoHS Compliant Contact factory
Certifications
Contact Manufacturer
Amperage Rating
120 A
Material
Waterproof
Packaging Type
Standard
Mounting Method
Flush
Quantity
6
Used with
SEMS nuts
Feature: 120 A amperage rating provides robust overload protection for high-current automotive circuits. Business Impact: reduces risk of wiring insulation damage and costly downtime by interrupting fault currents quickly. Application: ideal for heavy-load automotive harnesses in trucks, vans, trailers, and off-road equipment. Feature: Waterproof housing protects against engine bay moisture, spray, and humidity, extending component life. Business Impact: lowers maintenance cycles and replacement costs in harsh environments. Application: suitable for marine or rugged automotive applications where water exposure is common. Feature: Type I designation and rugged design standardize trip characteristics under automotive surge conditions. Business Impact: improves predictability of protection behavior, aiding system designers in reliability budgeting. Application: critical protection in power distribution paths and high-energy circuits. Feature: Flush mounting method simplifies integration into tight panels and enclosures. Business Impact: reduces enclosure depth requirements and speeds field installations. Application: control panels, dashboard assemblies, and OEM compartments where space is at a premium. Feature: SEMS nut compatibility and standard packaging streamline installation and stocking. Business Impact: lowers assembly time, simplifies maintenance, and reduces part counts for field retrofits. Application: production lines and service teams performing quick replacements. Feature: RoHS compliance ensures regulatory alignment and easier end-of-life disposal. Business Impact: supports sustainable design practices and supplier compliance programs. Application: automotive supply chains emphasizing green electronics and regulatory adherence.

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FAQs

To install BK/CB184F-120, ensure the panel surface is clean and flat, then align the flush-mount body with the panel cutout. Fasten using the included hardware compatible with SEMS nuts, verifying a secure seal to maintain the waterproof integrity. Use the catalog number BK/CB184F-120 for matching protective devices and follow Eaton’s guidance for wiring and torque specifications to avoid nuisance trips.
The unit combines a 120 A amperage rating with a waterproof housing and Type I design, delivering reliable surge protection in harsh automotive environments. Its flush mounting and SEMS nut compatibility simplify installation, while RoHS compliance ensures regulatory alignment. This makes it ideal for high-load harnesses in trucks, trailers, and off-road vehicles where space and moisture resistance matter.
Yes, the CB184F-120 is described as waterproof, designed to withstand moisture exposure typical of engine compartments. This protection helps prevent corrosion and performance degradation from humidity, spray, and road moisture. When used in engine bays, ensure proper sealing and mounting to maintain protection ratings and reliability over time.
The CB184F-120 carries RoHS compliance, aligning with European and global regulatory standards for hazardous substances. Certifications are listed as manufacturer-specific, so consult Eaton’s documentation for official confirmation. This supports safe integration into compliant automotive designs and simplifies supplier qualification processes.
Adopting the BK/CB184F-120 reduces maintenance costs by preventing overload damage and limiting downtime due to electrical faults in high-load circuits. Its rugged waterproof design lowers replacement frequency in exposed environments, while flush mounting and SEMS nuts shorten installation and servicing times. Over a fleet lifetime, these factors contribute to lower total cost of ownership and improved system reliability.