HRN-57N | Relay for protecting over/under voltage in 3-phase mains
Serves for protecting the voltage in the switchboard (protection of devices and equipment)
It monitors the value of voltage in 3-phase main.
the relay does not monitor the phase sequence
it is possible to set the upper and lower voltage limit at which the output relay contact switches off • adjustable time delay eliminates short-term peaks and outages in the network
The device is supplied from monitored voltage.
The faulty state is indicated by a red LED and by breaking output relay contact.
Output contact 1x switch / SPDT 8 A / 250 V AC1.
if the supply voltage drops below 60% Un (UOFF lower level), the relay opens immediately without any delay
HRN-57N: 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, N
Power terminals: L1, L2, L3, N
Supply and monitored voltage Un: 3x 400V / 230V / 50-60Hz
Max. continuous voltage: AC 3x 265V
Number of contacts: 1x switch (AgNi)
Rated current: 8 A / AC1
Output indication: red LED
Operating temperature: -20°C to 55°C
Operating position: any
Mounting: DIN rail EN 60715
Protection degree: IP40 from front panel / IP10 terminals
