HRN-54 | Voltage relay for overvoltage / undervoltage protecting in 3-phase networks

• serves for monitoring voltage, sequence and phase failure in the switchboard (protection of devices and equipment)
• monitors the voltage in a 3-phase voltage system
• the relay monitors the phase sequence
• it is possible to set the upper and lower voltage limit at which the contact of the output relay switches off
• Adjustable time delay eliminates short voltage peaks and failures in the main.
• Supplied from monitored voltage.
• The faulty state is indicated by a red LED and by the opening of output relay contact.
• Output contact 1x switch / SPDT 8A / 250V AC1.
• In case of supply voltage falls below 60%Un (U_OFF lower level) relay immediately opens without delay.
• HRN-54: supply from all phases which means that relay is functional also in the case when one phase is faulty.
• HRN-54N: supply L1, L2, L3-N, means that relay monitors also a failure of the neutral wire.
• 1-MODULE, DIN rail mounting.

More information

• Monitoring terminals: L1, L2, L3
• Supply / measured voltage Un: 3x 400 V / 50-60Hz
• Number of contacts: 1x switch (AgNi)
• Operating temperature: -20°C to 55°C (-
• Operating position: any
• Mounting: DIN rail EN 60715
• Protection degree: IP40 from front panel / IP10 terminals
• Dimensions: 90 x 17.6 x 64mm
• Weight: 69g