... be selected flexibly. 2. PMAC800 Low Voltage Circuit Breaker provides 12 protection functions such as start ... protection, earth fault/leakage current protection, short circuit protection, underload protection, external fault protection, ... circuit √ √Earth fault √ √Under load √ √External fault √ √Leakage current optional optional Temperture ( PTC/ NTC) optionalOver voltage optional optionalUnder voltage ...