Function: The high current circuit breaker adopts a bimetal structure to protect your trolling motor from possible damage caused by overload or short circuit, saving time and money. Current: 30 A, compatible with all 12 and 24 volt systems, the shell is made of thermoplastic and waterproof. These have ignition protection. Resettable: Yellow manual reset button, no need to replace the inline fuse, can also be used as a battery on/off button switch. Installation: Surface mounted on the panel or firewall, easy to use and durable, including protective nail insulator, stud size: 0.64 cm-71.12 cm. Application: Widely used in solar energy systems, battery charging, frequency converters, ships, and DC sound amplifier systems, special vehicles, off-road vehicles, winches, yachts and ship electrical control. colour: black Material: plastic size: 74mm Package Contents: 1 x Circuit Breaker Only the above package content, other products are not included. 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.