SCHNEIDER ELECTRIC ELECTRONIC TIMING RELAYS...
ELECTRONIC TIMING RELAYS WITH DIN RAIL MOUNTING; WIDTH 22.5MM
Reference:
VOLTAGE MONITORING / MEASUREMENT RELAYS
RM22TR33 Phase Rotation/Failure, under Adj. U/O Volt. 3 x 3~420V, 50/60 Hz.: 0.1~10 Sec Delay; 300V~500V
RM35TF30 Multifunction 220~480 VAC, Range 0.1~10s, 2C/O
RM4TR34 Phase Rotation/Failure, Under Voltage 360V over voltage 440V 50/60 Hz.: 0.1~10 Sec delay; 400V
RM4TG20 Rotation Direction and Presence of Phases 200 ~ 500V 50/60Hz
RM4UA32 Voltage measurement relay over voltage or under voltage detection 0.05 to 30Secs. 1~10V, 50V, 10~100V
RM4UA33 Voltage measurement relay over voltage or under voltage detection 0.05 to 30Secs. 30~300V, 50~500V