Square D by Schneider Electric PowerPact B 50A 3 Pole Circuit Breaker (BDA36050) is a DIN Rail mounted main breaker with a maximum amperage of 50A. It operates on AC/DC current at a voltage range of 551-600V. This unit features a trip indicator and is designed for on/off operation. Suitable for industrial and electrical applications, this circuit breaker comes as a single unit.