AC-Electronic Current Transformer STWA1SEH adjustable 2...10 A, with transistor-output

The STWA1SEH has an integrated electronic with transistor output.
The switching point is adjustable 2-10 A. Above switching-point the output transistor is switched on, below it is off.
The conductor is simply pushed through the transformer.Multiple loops reduce the switching point correspondingly, for instance to 0.5-2,5 A with four loops. A supply voltage is not required.
For monitoring of higher currents, the STWA1SEH is simply looped into the secondary current of big current transformers.

APPLICATION: The STWA1SE is used where AC current flow is to be detected in a conductor, e.g. to give a warning if a defined current value is exceeded or not reached, or to switch off a machine or to simply report the current flow.

• adjustable switching limit 2...10 A
• isolated transistor-output max. DC 40 V/40 mA
• output can be directly connected to the digital input
   of a PLC
• LED for display state of output
• integrated diode for reverse voltage protection
• electrical connection via screwless pluggable
   terminals
• no supply voltage required
• plug-in current transformer (Ø 11 mm)
• max. overload 100 A continously, 300 A / 10 s