Electronic Current-Transducer Type STWA2AH
AC Electronic current transformer with analog output, 2 measuring ranges, 2-wire execution
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Product description
The STWA2 AH is a current-transducer for AC currents 0...20/100 A. With the STWA 2 AH the value of a current can be evaluated very economically and space-saving. The output-signal 4...20 mA can be evaluated or displayed with components with analog inputs, e.g. PLCs or ZIEHL digital displays type MINIPAN ®.
Overview of Functions
- current-proportional analog output DC 4...20 mA according to AC-measuring range
- measuring range (20/100 A) can be changed with bridge
- insulated analog output
- supply DC 9-30 V (via 4-20 mA-loop)
- electrical connection via screwless pluggable terminals
- DIN-rail-mount or with screws
- plug-in current transformer (Ø 11 mm)
Technical Data
Supply voltage
DC 9...30 V (2-wire), alterable with bridge
Measuring range
AC 0...20 / 0...100 A
Analog output
DC 4...20 mA (max. 32 mA)
Load (max.)
9 V / 100 Ω, 24 V / 800 Ω, 30 V / 1100 Ω
Adjustment time
< 0,5 s.
Error of scale (above 10%/Irated)
< 5%
Temperature coefficient
0...55°C: <0,06%/K (-20...0°C: <0,5%/K)
Nominal frequency
50/60 Hz
Operating range
30...400 Hz
Error
≤ 0,1%/Hz (30 - 50 Hz)
≤ 0,05%/Hz (60 - 400 Hz)
Overload cap. 20/100 A continously
63 A / 360 A
Rated ambient temperature range
-20...+55°C
Housing
Design H
Dimensions (h x w x d)
50 x 36 x 56 mm
Diameter for conductor
11 mm
Protection terminals
IP 20
Weight
approx. 90 g
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