E82-2050 Datasheet, PDF (2/2 Pages) List of Unclassifed Manufacturers – Monitoring Relays AC Current Transformer

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.
Input/Output Curve
Resistance/Voltage Curve
Output
(mADC)
Max. R load (Ω)
20
16
12
8
4
50
100
Input
(% of range)
(V)
Loop voltage
Max. load resistance versus loop voltage
Wiring Diagram
Dimensions
I ~ ⁄⁄ I
1
2
R load
22.5
47.4
ø12
55.4
56
Ø 12
20
15
49
4 x ø3.4
2
Specifications are subject to change without notice (15.09.06)