300A Circuit Breaker w Reset Waterproof for Auto Trailer Truck RV Marine Audio

300A Circuit Breaker with Reset Waterproof for Auto Trailer Truck RV SUV

This 300A waterproof circuit breaker with manual reset provides overcurrent protection for high-demand automotive, trailer, truck, RV, and SUV electrical systems.

Overview

The 300A circuit breaker with reset is a waterproof automatic reset breaker designed for heavy-duty applications. It protects wiring and components from overloads in vehicles, trailers, and RVs. The manual reset function allows easy restoration after a fault trip, making it ideal for auxiliary battery systems and winch circuits.

Built For Performance

• Rated at 300A for high-current protection
• Waterproof design (IP rating suitable for outdoor use)
• Manual reset button for quick recovery after trip
• Compact form factor fits standard mounting
• Corrosion-resistant terminals for long life

On-The-Job Use

• Trailer winch and brake systems
• RV coach battery isolation
• Heavy-duty auxiliary lighting circuits
• Electric vehicle conversion power distribution

Specs At A Glance

Good To Know

Q: Does this circuit breaker require a separate fuse? A: No, the breaker combines overcurrent protection and reset capability, eliminating the need for a separate fuse.

Q: Can it be used as a battery disconnect switch? A: Yes, it can serve as a high-current switch for isolating batteries, though it automatically trips on overload.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.