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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
02-14/2017 Rev.: 0
Characteristics
• it serves to control supply voltage for appliances sensitive to supply tolerance,
protection of the device against under / over voltage
• HRN-3x is band voltage relay, HRN-6x is over / under voltage relay. For diff erence
- see graph of function.
• HRN-33, HRN-63
- monitors voltage in range AC 48 - 276 V
- U max and U min can be monitored independently
• HRN-34, HRN-64
- like HRN-33, but voltage range is DC 6 - 30 V
- monitoring of battery circuits (24 V)
• HRN-35
- like HRN-33, but independent output relays for each voltage level
- switching of other loads possible
• HRN-37, HRN-67
- like HRN-33, monitors voltage in range AC 24 - 150 V
- it is possible to monitor level of overvoltage and undervoltage independently
• adjustable time delay for all types is 0 - 10 s (to eliminate short voltage drops or
peaks)
• voltage Umin adjusted as % of Umax
• 3-state indication - LEDs indicating normal state and 2 fault states
• supply from monitored voltage (monitors level of its own supply)
• 1-MODULE, DIN rail mounting
Description
HRN-35
HRN-37
1
2
3
3
4
4
5
5
6
6
6
cos φ ≥ 0.95
Type of load
AC1
Mat. contacts AgNi,
contact 16A
250V / 16A
Type of load
AC13
Mat. contacts AgNi,
contact 16A
250V / 6A
1. Supply / monitoring terminals
2. LED indication for relay status
1
3. Adjusting of upper value Umax
4. Adjusting of time delay
2
5. Adjusting of bottom value Umin
6. Output contatcs
M
M
AC2
AC3
uncompensated
250V / 5A
250V / 3A
230V / 3A (690VA)
K
AC14
AC15
250V / 6A
250V / 6A
HRN-33
HRN-63
HRN-34
HRN-64
HRN-35
HRN-67
HRN-37
Monitoring voltage relay
Symbol
HRN-33,HRN-37, HRN-63, HRN-67
A1
< U
A2
Connection
HRN-33, HRN-37,
HRN-63, HRN-67
Un
A1
A2
15 16 18
AC5a
AC5a
compensated
x
M
DC1
DC3
24V / 16A
24V / 6A
1 / 2
HRN-34, HRN-64
16
18
15
HRN-35
A1
16 18
26 28
< U
15
25
A2
HRN-34,
HRN-64
Un
+ +
-
A1
A2
15 16 18
HAL.230V
AC5b
AC6a
800W
x
250V / 3A
M
DC5
DC12
24V / 4A
24V / 16A
EN
16
18
A1
< U
A2
15
HRN-35
Un
A1
A2
25 26 28
15 16 18
AC7b
AC12
250V / 10A
DC13
DC14
24V / 2A
24V / 2A
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