Features: 1.Applicable to: When the car is equipped with a speaker, a car double battery isolator, a winch, etc., it is used to protect the line. 2.Recoverable insurance automatically disconnects the protection circuit when the current reaches a predetermined value. 3.Leakage protection, overload protection.Good conductivity and craftsmanship, high temperature pressure. 4.After disconnecting and troubleshooting, it can be manually resumed and used manually. 5.This automatic reset fuse holder switch can control large current circuits with high safety. Specification: Item Type: Automatic Reset Fuse Holder Switch_x000D_ Self-Recovery Circuit Breaker, Car Audio Conversion Protection, Power Recovery Circuit Breaker_x000D_ Applicable to: When the car is equipped with a speaker, a car double battery isolator, a winch, etc., it is used to protect the line.Recoverable insurance automatically disconnects the protection circuit when the current reaches a predetermined value._x000D_ _x000D_ The Difference with Ordinary Insurance is the Following 3 Points:_x000D_ 1. Its sensitivity is very high, can protect circuit electrical appliances in time._x000D_ 2. After disconnecting and troubleshooting, it can be manually resumed and used manually._x000D_ 3. It can control high current circuit._x000D_ Instructions for Use:_x000D_ 1. If you need to disconnect manually, you can press the manual disconnect button, do not forcibly open the reset wrench, or it will cause the shaft to break._x000D_ 2. When the power is on, the rated current is reached or close, the circuit breaker will automatically disconnect. This product uses the principle of thermal induction, so the current when disconnected is not the rated current._x000D_ 3. After manual disconnection, push the reset wrench can be reset. After the automatic disconnection, and product has cooled, can push the reset wrench to reset._x000D_ Length: Approx. 100mm / 3.9in_x000D_ Width: Approx. 42mm / 1.7in_x000D_ Height: Approx. 42mm / 1.7in