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 recoverable fuse automatically disconnects the protection circuit<br> Circuit protection function: When the current reaches a predetermined value, the self-recovery fuse automatically disconnect to protect the circuit. Prevent excessive current and protect electrical appliances. Overcurrent protection, overvoltage protection, residual current protection, overcharge protection.<br> Simple installation: no need to replace the built-in fuse, it can also be used as a coin cell battery switch. This circuit breaker is easy to install and can be mounted on any panel, wall or car.<br> Material and wiring: The shell and components are made of high flame-retardant and anti-vibration plastic, which has a long service life. It accepts 0/2/4/8 gauge power cords with adapters for direct connection to all 12, 24 volt systems<br> Application: Provide overload or short-circuit current protection when high-current power supplies are used in automobiles, ships, ships, RVs, caravans, , horns, horns, automotive dual battery isolators, winches, etc. Audio circuit breaker, trip circuit breaker for high current tropical manual reset switch, suitable for auxiliary DC electrical system.<br> Colour:black<br> Material:plastic<br> type:300A<br> Package Contents:<br> 1 x Circuit Breaker<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.