This is a magnetic circuit breaker designed to protect electrical circuits from damage caused by overloads or short circuits. It has a rating of 20 amps and can handle voltages up to 250 volts AC, as well as 80 volts DC. The breaker features a hydraulic delay mechanism, which allows for a brief time period before the circuit is tripped in case of an overload, giving users time to correct the issue or disconnect the power supply manually. It has a rocker panel mount design, making it easy to install and operate in various applications.