The QO2501021 Square D 50 Amp 240V 2 Pole Plug In 120V Shunt Trip Breaker is a high-quality miniature circuit breaker designed for industrial and commercial use. With a maximum amperage of 50A and voltage rating of 240V, this bolt-on breaker offers instantaneous break time and features a shunt trip for added convenience. The two poles ensure reliable protection against overloads and short circuits, making it a reliable option for electrical systems requiring added safety and control.