Eaton CB185-70 Automotive Circuit Breaker - Waterproof
Part Number: CB185-70
Quick Summary
The Eaton CB185-70 automotive circuit breaker provides reliable overcurrent protection for 48 VDC automotive circuits in vehicles and rugged equipment. Engineers often struggle with waterproof sealing, high-current demands, and compact panel layouts that complicate protection strategies. This unit is RoHS compliant and features a 3 kAIC interrupt rating with a 70 A amperage rating, ensuring dependable performance in harsh environments. The design supports flush mounting and switchable operation, simplifying panel designs and enabling safer maintenance. As part of Eaton's electrical protection and circuit control portfolio, CB185-70 offers a scalable, long-life solution that minimizes wiring damage and downtime, while meeting evolving automotive and industrial protection requirements.
Product Information
Extended Description
CB185-70 Eaton: Eaton Bussmann series C.B.185 automotive circuit breaker, Switchable, 48 Vdc, 70A, 3 kAIC, Type III, High amp, Waterproof
Product Name
Eaton Bussmann series CB185 automotive circuit breaker
Catalog Number
CB185-70
UPC
051712598002
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
70A
Interrupt rating
3 kAIC
Voltage rating
48 Vdc
Material
Waterproof
Packaging Type
Standard
Mounting Method
Flush
Special features
Switchable
Bussmann series 4-foot automotive planogram no.10730
CB185-70~DISJUNTOR CB185-70A
CB185-70~DISJUNTOR CB185-70A
Bussmann series Fuseology
Eaton Specification Sheet - CB185-70
Feature: 70 A amperage rating, 3 kAIC interrupt rating, 48 VDC operation. Business impact: robust protection for automotive and rugged equipment wiring, reducing the risk of catastrophic damage from short circuits. Application: suitable for 48 VDC automotive circuits in vehicles and harsh environments. Feature: Waterproof housing and rugged construction. Business impact: dramatically improves reliability in wet or spray-prone applications, lowers maintenance costs in marine, agricultural, and construction settings. Application: off-road vehicles and outdoor equipment. Feature: Switchable, with flush mounting. Business impact: enables easy testing and quick reset without panel redesign, while saving valuable panel space. Application: tight control panels and space-constrained installations. Feature: RoHS compliant and standard packaging. Business impact: ensures regulatory compliance and straightforward procurement across global supply chains. Application: medical-free, low-hazard environments where RoHS is mandated. Feature: Compact footprint (1.9 in L x 1.68 in W x 2.9 in H) and standard mounting method. Business impact: simplifies retrofit and replacement in existing Bussmann series layouts, reducing downtime. Application: retrofit projects and modernized control panels in automotive and industrial settings.
Get a Quick Quote for a Eaton CB185-70
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 CB185-70?
Enquire Now
FAQs
CB185-70 uses flush mounting, designed for space-constrained panels. Its compact footprint (1.9 in L x 1.68 in W x 2.9 in H) lets it fit standard automotive and industrial enclosures. For retrofit projects, verify cutouts align with the CB185-70 footprint and ensure the enclosure provides a watertight seal around the mounting area.
CB185-70 provides 70A continuous current, a 3 kAIC interrupt rating, and operates at 48 VDC. These specs define the maximum load the circuit can carry, the fault current it can interrupt without damage, and the voltage level it protects. Use these values to size wiring, fusing strategies, and enclosure protection in automotive and rugged industrial circuits.
Yes. The CB185-70 is described as waterproof and RoHS compliant, making it well-suited for moisture-prone and exposure-heavy environments like off-road, marine, and outdoor industrial installations. The 70A/3 kAIC rating provides reliable protection against short-circuit events in challenging conditions, while its compact form supports compact control panels.
Eaton provides several resources including the Eaton Specification Sheet for CB185-70, and full catalogs. Additional materials include a Bussmann planogram, and a general catalog PDF listing the CB185-70. These documents aid in design validation, part replacement decisions, and cross-reference with other Bussmann-series components.
The CB185-70 reduces downtime by delivering reliable overcurrent protection and a switchable reset routine that simplifies testing. Its 3 kAIC interrupt rating helps protect wiring harnesses and components, potentially lowering repair costs after faults. RoHS compliance also streamlines procurement and regulatory adherence, contributing to lower total cost of ownership over time.