Features: The circuit breaker is designed with a self-restoring overload protector, which can quickly cut off the circuit when the current is overloaded, protecting the vehicle audios and electrical equipment from damage. Easy operation: The product has an insurance switch function, the user can open or close the circuit at any time according to the need, which is very convenient and practical. Self-recovery function: The product has the characteristics of self-recovery, that is, after the overload situation is lifted, it can automatically return to the normal working state without manual intervention. High-quality materials: The product is made of quality materials, with high temperature resistance, wear resistance characteristics, can be used for a long time and not easy to damage. Simple installation: The product installation is simple and convenient, just connect it to the corresponding circuit, without complex operation step. Car audios enthusiasts: Suitable for car audios enthusiasts, it can provide overload protect for audios equipment and ensure long-term stable operation of audios equipment. yacht users: also suitable for yacht need electrical equipment occasion, can protect a variety of electrical equipment from current overload damage. Specifications: Material: Metal, Plastic Voltage: 12-48V Size: Approx. 52x35x69mm/2.05x1.38x2.72in Type: 50A/60A/80A/100A/150A/200A/250A/300A Package Includes: 1x Circuit Breaker note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.