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Monitoring voltage relays3-phase

HRN-43Relay for complete monitoring 3-phase mains

HRN-43NRelay for complete monitoring 3-phase mains

HRN-54Relay for monitoring over / under voltage

HRN-54NRelay for monitoring over / under voltage

HRN-55Relay for monitoring phase sequence and failure

HRN-55NRelay for monitoring phase sequence and failure

HRN-57Relay for monitoring over / undervoltage and phase failure

HRN-57NRelay for monitoring over / undervoltage and phase failure

HRN-56 (1M)Relay for monitoring phase sequence and failure

HRN-56 (3M)Relay for monitoring phase sequence and failure

« 000 »
Type Sequence Over
(max)		 менее
(мин)		 Failure Sequence Asymmetry Cos-φ Type Function Supply (V)
AC DC Window Hysteresis Supply voltage Galvanic. separated.
HRN-43 3 • • • • •  •   • AC 230, 400 V, AC/DC 24 V 1 
HRN-43N 3 • • • • •  •   • AC 230, 400 V, AC/DC 24 V 1 
HRN-54 3 • • • •   •    from monitored 0 
HRN-54N 3 • • • •   •    from monitored 0 
HRN-55 3  • • •   •    from monitored 0 
HRN-55N 3  • • •   •    from monitored 0 
HRN-57 3 • • •    •    from monitored 0 
HRN-57N 3 • • •    •    from monitored 0 
HRN-56 (1M) 3  • • •   •    from monitored 0 
HRN-56 (3M) 3  • • •   •    from monitored 0 

HRN-57:Relay for monitoring over / undervoltage and phase failure

  • serves to monitor voltage in a switchboard, protection of devices in 3-phase main
  • monitors value of voltage in 3-phase main
  • it is possible to set upper and lower level independently
  • adjustable time delay eliminated short voltage peaks and failures in the main
  • the device is supplied from monitored voltage
  • faulty state is indicated by red LED and by breaking output relay contact
  • output contact 1x changeover 8 A /250 V AC1
  • relay doesn’t monitor phase sequence
  • in case supply voltage falls below 60 %Un (U off lower level) relay immediately switch OFF with no delay
  • HRN-57 – supply from all phases, means that relay is functional also in case of failure in one phase
  • HRN-57N -supply L1-N, means that relay monitors also failure of neutral wire, replacement for HRN-52
  • 1-MODULE, DIN rail mounting

Full size
 

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