Specifications are subject to change without notice (25.01.06)
1
Monitoring Relays
AC Current Transformer
Types A 82-10, A 82-20
5 types of input: 0 - 25 AAC
0 - 50 AAC
0 - 100 AAC
0 - 250 AAC
0 - 500 AAC
Output: A 82-10: 0 - 20 mADC (source)
A 82-20: 4 - 20 mADC (sink)
Easy interface to PLC or setpoint relays
Product Description
AC current metering trans-
former for 25, 50, 100, 250 or
500 AAC. Output current from
the transformer is 0-20 mADC
or 4-20 mADC in accordance
with IEC 60381-1. Can be
Type
Output
Input current
used with relays DIB01,
PIB01, DIC01, PIC01 or
S183 or directly connected
to a PLC. Power supply ON
is indicated by a green LED
on the side of the housing.
Ordering Key
Type Selection
Input current
Output current
Type no.
25 AAC
0 - 20 mA
A 82-10 25
50 AAC
0 - 20 mA
A 82-10 50
100 AAC
0 - 20 mA
A 82-10 100
250 AAC
0 - 20 mA
A 82-10 250
500 AAC
0 - 20 mA
A 82-10 500
25 AAC
4 - 20 mA
A 82-20 25
50 AAC
4 - 20 mA
A 82-20 50
100 AAC
4 - 20 mA
A 82-20 100
250 AAC
4 - 20 mA
A 82-20 250
500 AAC
4 - 20 mA
A 82-20 500
Input Specifications
A 82-10/20 25
A 82-10/20 50 A 82-10/20 100 A 82-10/20 250 A 82-10/20 500
Current range
0 - 25 AAC
0 - 50 AAC
0 - 100 AAC
0 - 250 AAC
0 - 500 AAC
Max. current (continuously)
30 AAC
60 AAC
120 AAC
300 AAC
600 AAC
Max. overload current (t = 30 s)
250 AAC
300 AAC
700 AAC
1500 AAC
3000 AAC
Rated insulation voltage
Input - output
1000 VAC
rms
1000 VAC
rms
1000 VAC
rms
1000 VAC
rms
1000 VAC
rms
Overvoltage category
IV (IEC 60664)
IV (IEC 60664)
IV (IEC 60664)
IV (IEC 60664)
IV (IEC 60664)
Dielectric strength
Dielectric voltage
6 kVAC
rms
6 kVAC
rms
6 kVAC
rms
6 kVAC
rms
6 kVAC
rms
Rated impulse withstand volt.
12 kV
12 kV
12 kV
12 kV
12 kV
(1.2/50 s)
(1.2/50 s)
(1.2/50 s)
(1.2/50 s)
(1.2/50 s)
A 82-10 50
2
Specifications are subject to change without notice (25.01.06)
A 82-10, A 82-20
Output Specifications
Rated insulation voltage (cable) 250 VAC
rms
Output current
10:
0 - 20 mADC
20:
4 - 20 mADC
Power supply (loop voltage)
10 - 40 VDC
Tolerance of output current
@ 50 Hz
A 82-10
2% 0.08 mA
A 82-20
2%
Temperature variation
400 ppm/C
Frequency range
40 Hz -1 kHz
Frequency variation
10 ppm/Hz
Maximum output current
35 mADC
General Specifications
Power ON delay
< 1 s
Reaction time
< 100 ms
worst case reaction time
may be up to 5 x
Indication for
Power supply ON LED, green
Environment
Degree of protection
IP 20
Pollution degree
3 (IEC 60664)
Operating temperature
-20 to 50C (-4 to +122 F)
Housing
Dimensions
95 x 67.5 x 20 mm
Material
ABS
Weight
A 82-10
300 g
A 82-20
270 g
Connection cable
A 82-10
2 m, 3 x 0.25 mm
2
A 82-20
2 m, 2 x 0.25 mm
2
Approval
UL
CE marking
Yes
EMC
Electromagnetic Compatibility
Immunity
Acc. to EN 61000-6-1
(tolerance of output current:
2%)
Acc. to EN 61000-6-2
(tolerance of output current:
5%)
Emission
Acc. to EN 61000-6-3
A 82-10, A 82-20 are current
metering transformers with
standard source/sink output
0 - 20 mA/4 - 20 mA. This
makes it very useful as an
AC current interface to a
PLC with mADC input.
Used with relays DIB01,
PIB01, DIC01, PIC01 or
S183 one or more setpoints
can monitor the current and
signal alarm. S 183 also pro-
vides the DC voltage supply
for the A 82-10, A 82-20.
The metered conductor is
drawn through the central
hole of the current metering
transformer. It is possible to
meter currents below the
nominal range by drawing
the conductor through the
hole several times. If the
conductor is drawn through
the central hole e.g. 5 times,
the transformer will register
50 A when the current in the
conductor is 10 A.
A 82-10 has factory-set gain
(span) adjustment, whereas
A 82-20 has zero as well as
gain (span) adjustment, both
factory-set.
Note: Do not change the set
values.
Mode of Operation
Wiring Diagrams
A 82-10 ... (source)
Yel-
low
Black
Red
Power
supply
R
l
o
a
d
I
+
A 82-20 ... (sink)
Grey
Black
Loop
voltage
R
l
o
a
d
I
+
Specifications are subject to change without notice (25.01.06)
3
Dimensions
Resistance/Voltage Curve
Max. load resistance versus Power supply (loop voltage)
(V)
Power supply
(loop voltage)
Max. R load
(
)
A 82-10, A 82-20
Input/Output Curve
20
16
12
8
4
50
100
Input
(% of range)
Output
(mADC)
A
82
-2
0
A
82
-1
0
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