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Voltage monitoring relay in
3P with adjustable levels HRN-54N

3 x 172-287 V

EAN: 8595188137218 | Code: 7511


  • It serves to monitor voltage, phase failure and sequence in switchboards, protection of devices in 3-phase mains.
  • It is possible to set upper and lower level of monitoring voltage.
  • Adjustable time delay eliminates short voltage peaks and failures in the main.
  • Supplied from monitored voltage.
  • Faulty state is indicated by red LED and by opening of output relay contact.
  • Output contact 1x changeover / SPDT 8 A / 250 V AC1.
  • In case supply voltage falls below 60 %Un (UOFF lower level) relay immediately opens without delay.
  • HRN-54: supply from all phases which means that relay is functional also in case when one phase is faulty.
  • HRN-54N: supply L1, L2, L3-N, means that relay monitors also failure of neutral wire.
  • 1-MODULE, DIN rail mounting.


  • Phase failure: Yes
  • Phase sequence: Yes
  • Overvoltage: Yes
  • Undervoltage: Yes
  • Asymmetry: x
  • Monitored range: AC 3 x 172-287 V
  • Supply voltage: 1x CO, 8 A
  • Housing: 1-MODULE
  • Power supply: from monitored voltage
  • Dimensions: 90 x 17.6 x 64 mm (3.5˝ x 0.7˝ x 2.5˝)



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