95
ZIEHL industrie-elektronik, 74523 Schwäbisch Hall, Germany, +49 791 504-0, info@ziehl.de, www.ziehl.de
Electronic-Current-Transformer
2
AC-Electronic Current Transducer STWA2AH
with analog output
STWA2AH
Electronic current trans-
former
AC 0...20 A / 0...100 A -
DC 4...20 mA
Dimension illustrations
A for a transformer with 100/5 A.
The analog output is isolated. The STWA 2 AH is in
2-wire execution and needs a supply-voltage DC 9...30 V.
Application: The STWA " AH makes it possible to monitor
the value of an AC current. The output signal can be
evaluated or displayed with components with analog
inputs, e.g. ZIEHL TR210, STW1000V2 or MINIPAN
®
.
current-proportional analog output DC 4...20 mA =
AC 0...20 / 0...100 A (isolated)
electrical connection via screwless pluggable ter-
minals
supply voltage DC 9...30 V (2-wire)
DIN-rail-mount or with screws
plug-in current transformer (Ø 11 mm
•
•
•
•
•
Supply voltage
Monitoring ranges
Analog output
Adjustment time
Error (of scale, above 10%/
I
rated)
Temperature coecient
Nominal frequency
Operating range
Error
Overload cap. 20/100 A
Rated ambient temperature range
DC 9...30 V (2-wire), depending on load
AC 0 - 20 / 0...100 A
DC 4 - 20 mA (max. 32 mA)
< 0,5 s.
<5%
0...55°C: <0,06%/K (-20...0°C: <0,5%/K)
50/60 Hz
30...400 Hz
≤ 0,1%/Hz (30 - 50 Hz)
≤ 0,05%/Hz (60 - 400 Hz)
63 A / 360 A
continously
-20...+55°C
The STWA2AH is a measuring
transducer for AC currents 0...100
A, divided in 2 ranges 0...20 A and
0...100 A. Multiple loops of the
conductor through the transfor-
mer reduces the measuring range
corres pondingly (for instance to
0...5 A with four loops).
For the monitoring of currents
of any level, the STWA2AH is
simply looped into the secondary
circuit of a large transformer
with secondary 5 A (cable four
times through the STWA2AH).
Consequently, the output is pro-
portional to the primary current
of the transformer, e.g. 0...100
Housing
Dimensions (h x w x d)
Diameter for conductor
Weight
Design H
42 x 36 x 56 mm
11 mm
app. 90 g
2018-04-27
1 Housing
2 Clip for DIN-rail (removeable)
3 Terminal (pluggable)
4 Wall-mounting (M4)
Part number: S225580
