Compatibility: Newly designed manual reset circuit breaker, compatible with all 12, 24, 48 volt systems. Safe and Practical: Built-in high current terminals, high sensitivity, high-tech waterproof housing and protective rubber bolt covers protect your electric motor from electrical damage and save the cost of replacing fuses. Resettable: Manual reset button, the red button on the fuse can be used as the main power switch for the circuit and can also be used as a termination switch. Accepts 0/2/4/8 gauge power cable connected directly to the adapter, wired IN (BAT) input, OUT (AUX) output. Install on the panel or firewall. Application: Overload or short circuit protection for car audio/video systems, ships, trucks, buses, RVs, ATV winches and marine and DC PA systems. Color: As shown in the picture Material: Plastic Type: 300A Package Contents: 1 x Fuse with manual reset 1 x m10 Wrench Above package contents only, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the actual item. The allowable measurement error is +/- 1-3cm.