Series IPNG

IPNG series window type current transformers

Our IPNG series complements  our REGULUS series with for smaller primary currents and higher burdens. 
All current transformers fulfil the demands of the standard  IEC 61869, DIN 42600 and DIN EN 50274.


Our window type  transformers feature an unbreakable polyamide housing difficult to inflame acc. to UL 94. And they are equipped with nickel-plated secondary terminals with cross-head  screws (2 Nm), and integrated secondary terminal covers (yellow sliders).


  • Highest voltage for equipment Um = 0.72 kV (other voltages on request)
  • Rated power frequency withstand voltage 4 3 kV / 1 min (other voltages on request)
  • Rated frequency 50-60 Hz (other frequencies on request)
  • Thermal rated continuous current Icth = 1.2 x Ipr N (1.0 x Ipr N for higher primary currents)

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  • Thermal rated short-time current Ith = 60 x IprN (max. 100 kA)
  • Rated impulse current Idyn = 2.5 x Ith
  • Instrument security factor FS5 to FS15
  • Insulation class H (other classes on request)

Series IPNG

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Custom solutions: As individual as your application

Some applications have requirements that are beyond the capabilities of standard instrument transformers. In such cases we would appreciate to develop a your customised product or adapt existing products to your needed conditions or requirements. We will find the right solution to your application, too. Don’t hesitate to contact us!

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