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ELKO EP, s.r.o.
Palackého 493
769 01 Holešov, Všetuly
Czech Republic
Tel.: +420 573 514 211
e-mail: elko@elkoep.com
www.elkoep.com
Made in Czech Republic
02-12/2017 Rev.: 2
Characteristics
• 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
• 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
• in case supply voltage falls below 60 %Un (U
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-N, means that relay monitors also failure of neutral wire
• 1-MODULE, DIN rail mounting
Description
1. Supply / monitoring terminals
1
2. Faulty state indication
3. Supply indication
3
2
4. Adjusting upper value Umax
4
5
5. Adjusting of time delay T2 in range 0.1 - 10 s
6
6. Adjusting bottom value Umin
7. Output contacts
7
cos φ ≥ 0.95
Type of load
AC1
Mat. contacts AgNi,
contact 8A
250V / 8A
Type of load
AC13
Mat. contacts AgNi,
contact 8A
x
lower level) relay immediately opens
OFF
(in range HRN-54: 420 - 500 V,
HRN-54N: 242 - 288 V)
(in range HRN-54: 300 - 380 V,
HRN-54N: 173 - 219 V)
M
M
AC2
AC3
250V / 3A
250V / 2A
230V / 1.5A (345VA)
K
AC14
AC15
250V / 3A
250V / 3A
HRN-54
HRN-54N
Relay for monitoring phase sequence, failure,
over / under voltage in 3 phase mains
Symbol
HRN-54
L1
3~ < U
L2 L3
Connection
HRN-54
L1
L2
L3
AC5a
AC5a
uncompensated
compensated
x
M
DC1
DC3
24V / 8A
24V / 3A
1 / 2
HRN-54N
16 18
L1
N
3~ < U
15
L2 L3
HRN-54N
L1
L2
L3
N
L1
L2
L3
16
15
18
HAL.230V
AC5b
AC6a
300W
x
250V / 1A
M
DC5
DC12
24V / 2A
24V / 8A
24V / 2A
EN
16 18
15
L1
N
L2
L3
16
15
18
AC7b
AC12
250V / 1A
DC13
DC14
x
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