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Technical
Section 11
Dimensions
Section 12
7
Control relays
iRCI
iRCU
Type
Current control
Voltage control
Function
b
b
Monitors the current (Ir) flowing in an AC or DC circuit
and indicates any crossing of the set threshold
b
b
Monitors the voltage variation (Ur) of an AC or DC
circuit and indicates any crossing of the set threshold
Wiring diagrams
L
N
1
7 3 5
2
864
L
N
1
7 3 5
2
864
0.15 A
y
Ir
y
1.5 A
AC/DC
1 A
y
Ir
y
10 A
AC/DC
L
N
1
7 3 5
2
864
L
N
1
7 3 5
2
864
10 V
y
Ur
y
100 V
50 V
y
Ur
y
500 V
Catalogue numbers
A9E21181
A9E21182
Common technical specifications
Supply voltage (Uc)
V AC
230, -15 % to +10 %
Frequency
Hz
50/60
Parameter setting
b
b
On the front panel, by direct scale, using a screwdriver
Precision of display
±10 % of full scale
Output by changeover contact
8 A under 250 V AC (cos
ϕ
= 1)
Indications by LED
Green
Voltage presence
Red
Fault
Consumption
VA
3
Dissipated power
W
2
Degree of protection
Device only IP20
Connection by tunnel terminals Rigid cable 1.5 x 6 mm
2
Width in 9-mm modules
4
Operating temperature
°C
-5 … +55
Storage temperature
°C
-40 … +80
Particular technical specifications
Threshold adjustable from 10 % to 100 % of Ir
Threshold adjustable from 10 % to 100 % of Ur
Hysteresis adjustable from 5 % to 50 % of Ir
Hysteresis adjustable from 5 % to 50 % of Ur
Monitoring of overcurrent and undercurrent (selection by selector switch)
Fail-safe contact
De-energized
2
864
Energized with fault
Energized without fault
2
864
Time delay on crossing threshold: 0.1 s to 10 s
Possibility of memorizing fault with resetting
Compatible with current transformers (CTs) of ratio X/5 b
b
Automatic recognition of AC voltage or DC voltage.
b
b
2 measuring ranges selected by cabling:
v
v
10 V to 50 V
v
v
50 V to 500 V
b
b
Automatic recognition of alternating or direct current.
b
b
2 measuring ranges selected by cabling:
v
v
0.15 A to 1.5 A
v
v
1 A to 10 A
PB107125-35
DB405266
DB405266
PB107126-35
iRCP phase control, iRCI current
control, iRCU voltage control and
iRCC compressor control relays
Monitoring
Control
Remote control