... unbalance protection, earth fault/leakage current protection, short circuit protection, underload protection, external fault protection, overvoltage protection ... load √ √Over current √ √Phase failure √ √Current unbalance √ √Short circuit √ √Earth fault √ √Under load √ √External fault √ √Leakage ... frequencyoptionaloptionalactive energy (kwh)optionaloptional PMAC801 Motor circuit breaker