Electronic Current-Transducer Type STWA2AH

AC Electronic current transformer with analog output, 2 measuring ranges, 2-wire execution

Electronic Current-Transducer Type STWA2AH

Order-number


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