HRN-54 - 3Phase - Monitoring Relay - AC
Voltage monitoring relay in 3P with adjustable levels HRN-54, 3 x 300 - 500 V
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- 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.
- In case supply voltage falls below 60 % Un (UOFF lower level) relay immediately opens without delay.
- HRN-54: supply from all phases which means that relay is functional also in case when one phase is faulty.
- HRN-54N: supply L1, L2, L3-N, means that relay monitors also failure of neutral wire.
- Phase failure: Yes
- Phase sequence: Yes
- Overvoltage: Yes
- Undervoltage: Yes
- Asymmetry: x
- Monitored range: AC 3 x 300-500 V
- Supply voltage: 1x CO, 8 A
- Housing: 1-MODULE
- Power supply: from monitored voltage
- Dimensions: 90 x 17.6 x 64 mm (3.5˝ x 0.7˝ x 2.5˝)