300A 12-48 Volt DC self-resetting circuit breaker with manual reset button for automotive, RV, marine, and boat applications (300 Amp)

Features: High-current thermal trip circuit breaker with manual reset switch, suitable for auxiliary DC electrical systems. When the current reaches a predetermined value, the resettable fuse automatically disconnects to protect the circuit.

Circuit Protection Function: When the current reaches a predetermined value, the resettable fuse automatically disconnects to protect the circuit. Prevents excessive current and protects electrical appliances. Overcurrent protection, overvoltage protection, residual current protection, and overload protection.

Simple Installation: There is no need to replace the built-in fuse, and it can also be used as a battery-powered on/off switch. The circuit breaker has simple installation steps and can be installed on any flat panel, wall, or in a vehicle.

Material and Wiring: The casing and components are made of highly flame-retardant and vibration-resistant plastic, ensuring a long service life.

It accepts 0/2/4 specification power cords with adapters for direct connection to all 12, 24, and 48 volt systems. Application: Provides overload or short-circuit current protection when using high-current electrical equipment, such as automobiles, ships, trucks, buses, RVs, caravans, tractors, loudspeakers, horns, automotive dual-battery isolators, and winches. Audio circuit breakers, high-current trip thermal circuit breakers with manual reset switch, suitable for auxiliary DC electrical systems.