This device is a circuit breaker designed to protect electrical circuits from overloads or short circuits. It has a magnetic hydraulic delay feature, which means it will not trip immediately when an overload occurs. Instead, there will be a brief delay before the circuit is interrupted. The breaker has a 20-amp rating and can handle voltages up to 277 volts AC or 80 volts DC. It comes equipped with a lever that allows for easy on/off switching and is designed for panel mount installation.