Bussmann CB185 150A Type III Circuit Breaker – Waterproof, SAE J1171 Compliant

Overview

The Bussmann CB185 150A Type III circuit breaker is a genuine component from the Bussmann Series designed for high amperage needs in auxiliary and accessory circuits. While model specifics may vary by configuration, this unit is commonly associated with protection tasks in trucks, buses, RVs, and marine vehicles. It is rated up to 100 amps in typical setups, offering a robust option for managing electrical loads in demanding environments. The Type III designation highlights ignition protection considerations, a useful trait for installations that share space with engine compartments or battery charging systems. This breaker combines durability with a compact form factor that supports reliable operation across a range of vehicle electrical systems.

Key benefits

• Rugged waterproof and sealed housing to perform in wet, dusty, or outdoor conditions
• Flush mount design for a clean, low profile installation on panels or dashboards
• High amperage capability to power multiple accessories while minimizing nuisance trips
• SAE J1171 ignition protection compliance adds a safety layer in ignition-prone environments
• Reliable protection for auxiliary circuits in multi battery installations and charging setups

Ideal use cases

• Auxiliary circuits in trucks, buses, RVs, and marine vehicles
• Battery charging systems that use battery isolators to manage several batteries
• Installations where a compact, high amperage, sealed housing breaker is preferred

Installation and compatibility

Designed for flush mounting, the CB185 sits neatly in panels or access housings. The waterproof sealed construction guards against moisture and dust, while the ignition protection rating supports safer operation in challenging environments. Follow standard electrical practices for wiring and securing the unit and refer to the vehicle manufacturer guidelines for best results.

Why choose Bussmann

Bussmann has a long history of delivering reliable electrical protection for automotive, marine, and heavy duty applications. This model blends a rugged build with practical features that support multi battery setups and routine maintenance. While not a guarantee, many users appreciate smoother circuit protection and fewer interruptions in demanding work or travel scenarios.