Monitoring voltage relay HRN-56

  • RELAY MONITORS PHASE SEQUENCE AND FAILURE (E.G. CONTROL OF CORRECT MOTOR WINDING ETC.).
  • SUPPLY IS DONE FROM MONITORED VOLTAGE.
  • SUPPLY FROM ALL PHASES WHICH MEANS THAT RELAY IS FUNCTIONAL ALSO IN CASE OF ONE PHASE FAILLURE.
  • FIXED TIME DELAY T1 (500MS) AND ADJUSTABLE TIME DELAY T2 (0-10S) TO ELIMINATE SHORT VOLTAGE DROPS AND PEAK.
  • FAULTY STATE IS INDICATED BY LED AND BY OPENING OF OUTPUT RELAY CONTACT.
  • 7 TYPES ACCORDING TO SUPPLY.

• Relay monitors phase sequence and failure (e.g. control of correct motor
winding etc.).
• Relay is designated for monitoring of 3-phase networks.
• Supply from all phases which means that relay is functional also in case
of one phase failure.
• Supply and monitored supply Un:

1-MODULE
HRN-56/208 – 3x 208 V
HRN-56/240 – 3x 240 V
HRN-56/400 – 3x 400 V
3-MODULE
HRN-56/480 – 3x 480 V
HRN-56/575 – 3x 575 V
• Fixed time delay T1 (500 ms) and adjustable time delay T2 (0 -10 s)

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