Automatic circuit breaker to open insurance: Built-in high current terminal board, high sensitivity, high current overload protection. High-tech waterproof case with protective rubber cover. Protect the circuit and electrical appliances in the car. Rated power: the circuit breaker is suitable for 12V, 24V and 48V. Current: 60A manual reset circuit breaker. Easy to Install: Accepts 0/2/4/8 gauge power cords. Panel or firewall mounting. Reset design: When the current is too large, it will automatically disconnect. After troubleshooting, reset manually. The circuit breaker red button can be used as the main disconnect switch for the circuit or as a disconnect switch. Wide Applications: Provides overload or short circuit protection in auxiliary circuits and accessories in trucks, buses, motorhomes and boats.