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MVR 54
MVR55_m
Time and Monitoring Relays
MVR 54

Relai untuk memantau tegangan lebih/kurang, urutan fasa dan kegagalan. MVR 54 - suplai dari semua fase yang berarti relai berfungsi juga jika salah satu fase rusak.

Technical Data

  • - 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
  • - Supply is done 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 (U lower level) relay off immediately opens without delay
  • - MVR 54 - supply from all phases which means that relay is functional also in case when one phase is faulty
  • - MVR 54N - supply  L1-N, means that relay monitors also failure of neutral wire
  • - 1-MODULE, DIN rail mounting