MAIN CHARACTERISTICS range of product ZELIO CONTROL product or component type MODULAR MSREMENT + CTRL RELAYS relay type VOLTAGE CONTROL RELAY network number of phases 1 PHASE supply circuit type DC relay name RM22UA relay monitored parameters OVERVLTG OR UNDERVLTG DTTION time delay type ADJUSTABLE 0.1...30 S +- 10 OF THE FULL SCALE VALUE ON CROSSING THE THRESHOLD TT switching capacity in VA 2000 VA measurement range 50 MV...5 V VOLTAGE ACDC 5060 HZ COMPLEMETARY CHARACTERISTICS reset time