Specifications are subject to change without notice (15.09.06)
1
Input current
Output current
Switch position
Type no.
0- 5 AAC
4 - 20 mA
5
E82-20 25
0-10 AAC
4 - 20 mA
10
E82-20 25
0-25 AAC
4 - 20 mA
25
E82-20 25
0-20 AAC
4 - 20 mA
20
E82-20 50
0-30 AAC
4 - 20 mA
30
E82-20 50
0-50 AAC
4 - 20 mA
50
E82-20 50
Monitoring Relays
AC Current Transformer
Type E 82-20
3 input ranges in one unit:
0 - 5 AAC
0 - 10 AAC
0 - 25 AAC
or
0 - 20 AAC
0 - 30 AAC
0 - 50 AAC
Output 4-20 mADC
Easy interface to PLC or setpoint relays
For mounting on DIN-rail in accordance with
DIN/EN 50 022
22.5 mm small Euronorm housing
Product Description
Small AC current metering
transformer with 3 knob se-
lectable ranges. Output from
the transformer is 4-20 mADC
in accordance with IEC
60381-1. Can be used with
relays DIB01, PIB01, DIC01,
PIC01 or S183 or directly
connected to a PLC.
Power supply ON is indicat-
ed by a green LED.
12 mm hole for isolated cur-
rent carrying wire makes it
suitable for most applications.
For mounting on DIN-rail or
directly on surface by screws.
Type
Output
Input current (highest range)
Ordering Key
Type Selection
Input Specifications
Output Specifications
Output current (sink)
4-20 mADC
Maximum output current
35 mADC
Tolerance of output current
@ 50 Hz
2%
Temperature variation
400 ppm/C
Frequency variation
10 ppm/Hz
Power supply (loop voltage)
10-40 VDC
General Specifications (cont.)
Environment
Degree of protection
IP 20
Pollution degree
3
Operating temperature
-20 to +50C (-4 to +122F)
Housing
Dimensions
22.5 x 56 x 49 mm
Material
ABS
Weight
70 g
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
Current range
0 - 5 AAC
0 - 10 AAC
0 - 20 AAC
0 - 25 AAC
0 - 30 AAC
0 - 50 AAC
Max. current (continuously)
50 AAC
50 AAC
100 AAC
50 AAC
100 AAC
100 AAC
Max. overload current (t = 30 s) 150 AAC
150 AAC
300 AAC
150 AAC
300 AAC
300 AAC
Overvoltage category
III (IEC 60664) III (IEC 60664)
III (IEC 60664)
III (IEC 60664) III (IEC 60664) III (IEC 60664)
Frequency range
40 Hz - 1 kHz 40 Hz - 1 kHz 40 Hz - 1 kHz 40 Hz - 1 kHz 40 Hz - 1 kHz 40 Hz - 1 kHz
E 82-20 50
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
2
Specifications are subject to change without notice (15.09.06)
E 82-20
Mode of Operation
The E 82-20 is a small AC
current metering transformer
with standardized 4-20
mADC output. This makes it
very useful as an AC current
interface to a PLC with 4-20
mADC input.
Used with relays DIB01,
PIB01, DIC01, PIC01 or
S 183, one or more set-
points can monitor the cur-
rent and signal alarm. S 183
also provides the DC volt-
age supply for the E 82-20.
In the 5 A range the E 82-20
is often used as a 4-20
mADC signal converter for
larger standard AC current
transformers with 5 AAC
secondary output.
The metered conductor is
drawn through the central
hole of the current metering
transformer. It is possible to
measure 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
5 AAC when the current in
the conductor is 1 AAC.
Dimensions
Resistance/Voltage Curve
22.5
47.4
15
4 x 3.4
12
20
55.4
56
49
Wiring Diagram
1
R load
I ~ // I
2
Input/Output Curve
12
20
16
12
8
4
50
100
Input
(% of range)
Output
(mADC)
Max. load resistance versus loop voltage
(V)
Loop voltage
Max. R load
(
)
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