The FAZ-B50/4 with Circuit Breaker is a unit manufactured by Eaton and is designed to protect electrical systems against overloads and short circuits. It has a rated current of 50 A, a rated voltage of 230/400 VAC, and a rated frequency of 50/60 Hz. It has four poles, a character type of B, and is fitted with a DIN rail. It has a plastic frame, a thermomagnetic operating system, and a 1000mA trip setting. It is UL, CSA, and IEC60947-2 certified. The unit is suitable for both residential and commercial applications.