- 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 ®.
- 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)
Thông số kỹ thuật
- 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