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RM4 TR - Rotational direction of phases + Phase failure + Undervoltage + Overvoltage, 50 - 60 Hz

Adjustable Time delay 0.1…10 (s)

Rated mains supply voltage (V)220(V) 50/60Hz

Control threshold Undervoltage: 198 V Overvoltage: 242 V

Output relay: 2 C/O

Range of product Zelio Control
Product or component
Industrial measurement and control relays
Relay type Control relay
Product specific appli-
For 3-phase supply
Relay name RM4-T
Relay monitored pa-
Overvoltage and undervoltage detection
Phase failure detection
Phase sequence
Time delay Adjustable 0.1...10 s
Measurement range 160...300 V
Contacts type and com-
2 C/O
Poles description 3P

[Us] rated supply voltage 220 V 50/60 Hz
Control threshold undervoltage 198 V
Control threshold overvoltage 242 V
Width 22.5 mm
Output contacts 2 C/O
Setting accuracy of the switching threshold +/-3 %
Switching threshold drift <= 0.06 % per degree centigrade depending permissible ambient air temperature
<= 0.5 % within the measuring range
Setting accuracy of time delay 10 P
Time delay drift <= 0.07 % per degree centigrade depending on the rated operational temperature
<= 0.5 % within the measuring range
Hysteresis 5 % fixed of de-energisation threshold
Run up delay at power up < 650 s

Measuring cycle <= 80 ms
Marking CE : EMC 89/336/EEC
CE : LVD 73/23/EEC
Overvoltage category III conforming to IEC 60664-1
[Ui] rated insulation voltage 500 V conforming to IEC
Supply frequency 50/60 Hz +/- 5 %
Operating position Any position without
Electrical connection 2 conductors cable 1.5 mm² flexible with cable end conforming to IEC 60947-1
2 conductors cable 2.5 mm² flexible without cable end conforming to IEC 60947-1
Tightening torque 0.6...1.1 N.m
Mechanical durability 30000000 cycles
[Ith] conventional free air thermal current 8 A

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