Feature: 1. Can effectively prevents excessive current and overload protection for amps, audio electronics, audio, video systems, and accessories in car, boats, marine vehicles, and moped power surges from damage to their amplifiers. 2. The unique button reset function design can be used as a stop switch, which is very practical. 3. Suitable for overload protection of car audio, video systems, ships, trucks, buses, recreational vehicles, ATV winches, ships and DC sound amplifier systems. 4. Adopts plastic and metal material, which makes it have high reliability and good performance. 5. Easy to use and quick to install, and will not take up much of your time, very convenient. Specification: Item Type: DC Circuit Breaker Material: Metal+PlasticSize: Approx. 78x58x38mm/3.1x2.3x1.5in(L x W x H)Voltage: 12-24V DC Current: 1A-250A (Each model corresponds to a different maximum current) Working Temperature: -10-50℃ (-14-122℉). Package List: 1 x Circuit Breaker Note: 1. Please correctly push the button to avoid damage the Circuit Breaker. 2. Please order and use the Circuit Breaker with right work temperature, to avoid it is too heat and stop work.3. Please note that the new type and old type of this product will be sent randomly,and make sure you will not mind before ordering.