Under-voltage and overvoltage protection relay
ETI
Advantages
- Serves to monitor voltage , phase failure and sequence in switchboards, protection of devices in 3-phase mains
- 1-module, DIN rail mounting
- It is possible to set upper and lower level of monitoring voltage
- Adjustable time delay eliminates short voltage peaks and failures in the mains
- Faulty state is indicated by red LED and by breaking output relay contact
- Output contact: 1x changeover 8 A /250 V AC1
- If the supply voltage falls below 60 % Un (Uoff lower level) the relay immediately breaks with no delay
HRN-54 - supply from all phases which means that the relay is functional also in case when one phase is faulty
HRN-54N - supply L1-N, means that relay monitors also failure of neutral wire
