Eaton CB185P-100 Automotive Circuit Breaker - 3 kAIC
Part Number: CB185P-100
Quick Summary
CB185P-100 automotive circuit breaker is a switchable protection device designed for 48 VDC vehicle circuits. Engineers often face abrupt DC faults that trigger unplanned downtime; a reliable protector reduces electrical damage and service interruptions. This Eaton unit carries RoHS compliance and is built for automotive environments, with a panel-mount form factor that simplifies installation and field maintenance. By combining rugged protection with straightforward serviceability, it supports fleet reliability, safer wiring practices, and reduced total cost of ownership. In dialogue with procurement and engineering teams, it represents a practical balance of performance, compliance, and installability for DC automotive architectures.
Product Information
Extended Description
CB185P-100 Eaton: Eaton Bussmann series C.B.185P automotive circuit breaker, Switchable, 48 Vdc, 100A, 3 kAIC, Type III, High amp
Product Name
Eaton Bussmann series CB185P automotive circuit breaker
Catalog Number
CB185P-100
UPC
051712593007
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
100 A
Interrupt rating
3 kAIC
Voltage rating
48 Vdc
Mounting Method
Panel
Special features
Switchable
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Eaton Specification Sheet - CB185P-100
Feature → Business Impact → Application: The CB185P-100 is a switchable automotive circuit breaker rated for 48 Vdc and 100 A, delivering a reliable interruption at 3 kAIC to prevent wiring insulation damage and component failure. This minimizes downtime and protects critical DC circuits in vehicle electrical systems, supporting uptime in commercial fleets and off-road equipment. Application: Ideal for panel-mounted protection within automotive control enclosures, battery banks, and DC distribution panels where space is at a premium and fast service is essential. Feature → Business Impact → Application: Its RoHS compliant construction aligns with sustainability and regulatory expectations, reducing lifecycle risk and improving vendor compliance for electronics assemblies. Application: Suitable for controlled automotive assemblies and workshop installations that require traceable, standards-aligned protection.Feature → Business Impact → Application: The panel-mount mounting method simplifies retrofits and new builds, enabling quick integration into existing enclosures and reducing commissioning time. Application: Perfect for repair shops upgrading protection in DC power networks and for new vehicle electrical architectures where quick field servicing matters. Feature → Business Impact → Application: Type III, switchable operation provides predictable protection during diagnostic procedures and maintenance, improving safety and test reliability. Application: Used in diagnostic bays, service centers, and manufacturing lines where repeatable protection and easy resets are needed.
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FAQs
The CB185P-100 uses a panel mounting method designed for automotive control enclosures. Its compact dimensions and standard panel footprint enable straightforward installation in existing DC distribution panels or new builds, reducing retrofit complexity and enabling quick service access during maintenance windows.
CB185P-100 is rated for 100 A at 48 Vdc with an interrupt rating of 3 kAIC. The switchable Type III design supports reliable protection for automotive DC circuits, providing dependable fault interruption while enabling easy reset after a trip. This combination supports robust circuit protection for critical vehicle systems.
Ideal for automotive DC networks, battery protection circuits, and DC power distribution in vehicles and equipment, CB185P-100 reduces wiring damage from faults and minimizes downtime. It’s well-suited for fleet maintenance, off-road machinery, and industrial vehicles where reliable protection and quick servicing matter.
CB185P-100 is RoHS compliant per Eaton's specification, supporting environmental and regulatory requirements for modern electrical assemblies. For other certifications, consult Eaton literature or catalog references to confirm additional standards applicable to your project or region.
The switchable CB185P-100 provides predictable protection that reduces insulation and component damage, lowering repair costs and downtime. Its panel-mount design simplifies servicing and part replacement, accelerating maintenance cycles and improving overall equipment uptime, which translates to a favorable return on investment for fleet and equipment operators.