MVR 54

Relay for monitoring over/under voltage, phase sequence and failure. MVR 54 – supply from all phases which means that relay is functional also in case when one phase is faulty.

• 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