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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
02-3/2017 Rev.: 2
Characteristics
- serves for monitoring of heating poles in rail-switches, heating cables, current
fl ow indication, monitoring of take-OFF in 1-phase engines slight...
- adjusting of actualing current via potentiometer, choice from 8 ranges:
AC 0.05 - 0.5 A; AC 0.1 - 1 A; AC 0.2 - 2 A; AC 0.5 - 5 A; AC 0.8 - 8 A; AC 0.1 - 10 A;
AC 1 - 10 A; AC 1.6 - 16 A
- adjustable delay 0.5 - 10 s (eliminat short current peaks, on of short...)
- possible to use for scanning of current from current transformer - up to 600 A!
- universal supply oltage AC 24 - 240 V and DC 24 V
- supplying is not galvanically separated from measured current
- output contact: 1x changeover 8 A
- 1-phase version, 1-MODULE, DIN rail mounting, replacement for PRI-31
Description
1. Supply voltage terminals
1
2
2. Measuring input (only AC)
3. Output indication
3
4. Setting of currentlevel - it´s crossing over is
4
5
5. Setting of delay - delay of output reaction to
6. Output contacts
6
Setting of currentlevel in % from range:
PRI-51/0.5A; PRI-51/1A; PRI-51/2A;
PRI-51/5A; PRI-51/8A; PRI-51/10A;
PRI-51/16A
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
indicated by closed relay and shining of red LED
diode
crossing over the set current level
Setting of currentlevel in A:
PRI-51/0.1-10A
M
M
AC2
AC3
250V / 3A
250V / 2A
230V / 1.5A (345VA)
K
AC14
AC15
250V / 3A
250V / 3A
PRI-51
Monitoring current relay
Symbol
Connection
L
N
Un
A1
A2
B1
B2
16
15
18
AC5a
AC5a
uncompensated
compensated
x
M
DC1
DC3
24V / 8A
24V / 3A
1 / 2
B1
A1
16 18
< I
B2
A2
15
Example of connection PRI-51 with current
transformer for current range increase
Un
Load
A1
A2
B1
B2
16
15
18
HAL.230V
AC5b
AC6a
300W
x
250V / 1A
M
DC5
DC12
24V / 2A
24V / 8A
24V / 2A
EN
Ip
Is
Current
transformer
AC7b
AC12
250V / 1A
DC13
DC14
x
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