Description

HRN-57N | Relay for protecting over/under voltage in 3-phase mains

  • Serves for protecting the voltage in the switchboard (protection of devices and equipment)
  • It monitors the value of voltage in 3-phase main.
  • the relay does not monitor the phase sequence
  • it is possible to set the upper and lower voltage limit at which the output relay contact switches off • adjustable time delay eliminates short-term peaks and outages in the network
  • The device is supplied from monitored voltage.
  • The faulty state is indicated by a red LED and by breaking output relay contact.
  • Output contact 1x switch / SPDT 8 A / 250 V AC1.
  • if the supply voltage drops below 60% Un (UOFF lower level), the relay opens immediately without any delay
  • HRN-57N: supply L1, L2, L3-N, means that relay monitors also a failure of the neutral wire.
  • 1-MODULE, DIN rail mounting.

More information

  • Monitoring terminals: L1, L2, L3, N
  • Power terminals: L1, L2, L3, N
  • Supply and monitored voltage Un: 3x 400V / 230V / 50-60Hz
  • Max. continuous voltage: AC 3x 265V
  • Number of contacts: 1x switch (AgNi)
  • Rated current: 8 A / AC1
  • Output indication: red LED
  • 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 64mm
  • Weight: 66g

Documents

Parameters

Guarded values > U (Overvoltage), <U (Undervoltage), Phase failure
Power voltage from monitored voltage
Number of phases 3
Design 1-MODULE
Monitored voltage range 3 x 172 - 287 V AC

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