This circuit breaker is designed to protect electrical circuits from damage caused by overloads or short circuits. It features a magnetic mechanism with hydraulic delay, which allows it to operate quickly and reliably in the event of an overload. The device has a rating of 20 amperes (A) at 277 volts AC (alternating current), as well as 80 volts DC (direct current). Its compact design makes it suitable for mounting on a lever panel.