MAIN CHARACTERISTICS range of product ZELIO CONTROL product or component type INDUS MSREMENT + CTRL RELAYS relay type CONTROL RELAY product specific application FOR 3-PHASE SUPPLY relay name RM4-T relay monitored parameters ASYMMETRY time delay ADJUSTABLE 0.1...10 S measurement range 290..484 V contacts type and composition 2 OC poles description 3P COMPLEMETARY CHARACTERISTICS maximum switching voltage 440 V AC output contacts 2 OC setting accuracy of the switching threshold + -3 PT switching threshold drift