AC-Electronic Current Transformer STWA1LH

AC Electronic current transformer with output AC 230 V / 0,35 A

AC-Electronic Current Transformer STWA1LH

Order-number

S225591

Product description

 

The electronic current transformer STWA1LH monitors alternating currents 2 ... 20 A. For lower currents, the monitored wire can be led multiple times through the transformer. Used in the secondary circuit of transformers (e.g. 100/5 A), it is possible to monitor higher currents. The STWA1LH directly switches alternating voltage up to AC 230 V / 0,35 A.

  • Control of ventilations or suction plants
  • Control of valves at suction plants in the woodworking industry

Features 

  • Monitoring of alternating current up to 20 A
  • Response value adjustable 2 ... 20 A
  • Two-wire contact (voltage supply through output)
  • Operating voltage AC 24 ... 230 V
  • Transformer, ø 11 mm
  • Space-saving, easy mounting
  • Potential separation between monitored current circuit and switch output

Technical Data

Operating voltage

.......

AC 24...240 V

 

Operating voltage tolerance

.......

± 10 %

 

Frequency

.......

50/60 Hz

 

Overvoltage category

.......

III (EC 60 664)

 

Current measuring range

AC 2...20 A

.......

For lower currents, the monitored wire can be led multiple times through the transformer

 

Maximum permanent current

.......

AC 40 A

 

Maximum excess current

.......

AC 100 A for 60 s

 

Output

Maximum output current

.......

AC 350 mA

 

Minimum output current

.......

ca. 10 mA

 

Voltage drop

.......

≤ AC 8 V

 

Leakage current

.......

≤ AC 2 mA at 230 V

 

Switch

.......

solid state

 

Electomagnetic compatibility

.......

EN 61000-6-2 and EN 61 000-6-4

 

Adjustment accuracy

.......

± 15 %

 

Repeat accuray

.......

± 5 %

 

Hysteresis

.......

ca. 10 % of value

 

Release time

.......

On = <100 ms...800 ms
Off = app. 1,5 s

 

Design

.......

Housing H

 

dimensions (H x W x D)

.......

50 x 36 x 56 mm

 

Fitting position

.......

any

 

max. ambient temperature range

.......

0...55 °C

 

storage temperature

.......

- 20...+70 °C

 

Attachment

.......

35 mm standard rails conform to EN 50 022 or M4 screws

 

Protection

.......

IP 20

 

Weight

.......

approx. 90 g