Monitoring voltage relay, 3 phases - monitors overvoltage/undervoltage, sequence and phase failure

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46.10 €
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55.78 €
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HRN-54N | Relay for monitoring over / under voltage, phase sequence and failure


  • 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.


Technical parameters


  • Supply and measuring: L1, L2, L3, N
  • Supply / measured voltage:3x 400 V / 230 V / 50-60 H
  • Burden: max. 2 VA
  • Number of contacts: 1x changeover / SPDT (AgNi / Silver Alloy)
  • Operating temperature: -20 °C to 55 °C (-
  • Operating position: any
  • Mounting: DIN rail EN 60715
  • Protection degree: IP40 from front panel / IP10 terminals
  • Dimensions: 90 x 17.6 x 64 mm
  • Weight: 67 g
Documents in current location:
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ELKO EP, s.r.o., Holešov

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