DIGITAL MONITORING RELAY FOR 3-PHASE VOLT. WITH N-COND FOR IO-LINK AC 50 TO 60 HZ 3X 160 TO 690V PHASE SEQUENCE, PHASE FAILURE PHASE ASYMMETRY UNDERVOLTAGE ANDOVERVOLTAGE HYSTERESIS 1-20V NETWORK STABILIZATION TIME TRIPPING DELAY TIME 1 CO CONTACT, SPRING-LOADED CONNECTION