The Bussmann 185150P 150 Amp Thermal Circuit Breaker is a heavy-duty, manual reset circuit breaker designed to provide reliable overcurrent protection for high-current DC electrical systems. Engineered for marine, RV, automotive, off-road, commercial, and industrial applications, this ignition-protected breaker safeguards wiring, batteries, inverters, trolling motors, windlasses, and other high-power equipment from overloads and short circuits.

Constructed with a rugged waterproof housing, the Bussmann 185150P is built to withstand harsh marine environments. Its visible reset lever clearly indicates when the breaker has tripped, allowing for quick troubleshooting and safe system restoration. The trip-free design ensures the breaker cannot be manually held closed after an overload, providing enhanced protection for connected equipment.

Featuring M6 terminal studs compatible with 1/4-inch ring terminals, the Bussmann 185150P offers secure electrical connections and dependable performance in demanding DC power distribution systems.

Features

• Genuine Bussmann® (Eaton) circuit breaker

• 150 Amp thermal circuit breaker

• Manual reset operation

• Waterproof construction

• Ignition protected for marine applications

• Visible reset lever indicates open/tripped condition

• Trip-free design for enhanced safety

• Heavy-duty marine-grade construction

• M6 terminal studs accept 1/4" ring terminals

• Ideal for high-current DC electrical systems

Specifications

• Brand: Bussmann (Eaton)

• Manufacturer Part Number: 185150P

• Product Type: Thermal Circuit Breaker

• Current Rating: 150 Amps

• Maximum Voltage: 48V DC (Some literature references 42V DC; please confirm your model's rating before publishing.)

• Protection: Ignition Protected

• Housing: Waterproof

• Reset Type: Manual Reset

• Terminal Stud Size: M6

• Compatible Terminal: 1/4" Ring Terminal

• Trip Design: Trip-Free

• Application: Marine battery systems, inverters, windlasses, trolling motors, DC power distribution, RVs, off-road vehicles, and industrial equipment

Weight

• Approximate Weight: 9.2 oz (0.58 lb / approximately 260 g)