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Products
Protection/Monitoringrelays
Voltage relays
3-phase
HRN-57
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Monitoring voltage relay
HRN-57
It serves to monitor voltage in a switchboard, protection of devices in 3-phase main.
DESCRIPTION
It serves to monitor voltage in a switchboard, protection of devices in 3-phase main.
It monitors value of voltage in 3-phase main.
It is possible to set upper and lower level independently.
Adjustable time delay eliminated short voltage peaks and failures in the main.
The device is supplied from monitored voltage.
Faulty state is indicated by red LED and by breaking output relay contact.
Output contact 1x changeover / SPDT 8 A / 250 V AC1.
Relay doesn’t monitor phase sequence.
HRN-57
: supply from all phases, means that relay is functional also in case of failure in one phase.
HRN-57N: supply L1, L2, L3-N, means that relay monitors also failure of neutral wire.
1-MODULE, DIN rail mounting.
TECHNICAL PARAMETERS
Voltage: 3x 400 V / 50-60 Hz
Max. permanent overload: AC 3x 460 V
Number of contacts: 1x changeover / SPDT (AgNi / Silver Alloy)
Mounting: DIN rail EN 60715
Protection degree: IP40 from front panel / IP10 terminals
Dimensions: 90 x 17.6 x 64 mm (3.5˝ x 0.7˝ x 2.5˝)
Weight: 62 g (2.19 oz.)
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Instalation manual
Downloads
Datasheet HRN 57 57N
Format: pdf | Size : 1 MB | 26. 05. 2020
EC Declaration of conformity HRN-57
Format: pdf | Size : 350 kB | 25. 07. 2020
Manual HRN-57 57N
Format: pdf | Size : 216 kB | 26. 05. 2020
Manual multilanguage HRN-57 57N
Format: pdf | Size : 2 MB | 01. 07. 2020
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Monitoring voltage relay HRN-57N
It serves to monitor voltage in a switchboard, protection of devices in 3-phase main.
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