+31 (0)541 700 260 erik@opensupply.nl

 Type USI

Single-phase Transformer


Input voltage: 1000 V maximum
Vector group I0
Output voltage: maximum 50 V
Protection class IP 00
Insulation class B / F
Ambient temperature up to 40 ° C
Frequency: 50-60 Hz
Power range: 1 kVA – 10 kVA
Protection class I

Single-phase Transformer Type USI

Within the range up to 630 kVA, OpenSupply provides single-phase transformers with an input voltage of up to 1000 V. Their design and construction meet the requirements of EN 61588 / VDE 0570, and possibly other standards, such as UL / CSA, as well.

OpenSupply provides multiple transformers that are suitable for many applications. In the construction of these transformers, we use top-quality materials and vacuum impregnation, for example in the Type USI single-phase safety transformer.



To supply electrical circuits or devices to be used with extra-low voltage for safety reasons (Max. 50 V) (e.g. testing equipment, vacuum seals, certain devices in the chemical and mining industry, etc.).


  • Open design (IP 00, installation max. IP 23)
  • Windings are separated by two-chamber design (safe separation)
  • Safe connections in accordance with to VBG 4 with self-lifting terminals
  • High-quality, vacuum impregnation with black polyester resin
  • Hard-wearing, heat-, UV- and solvent-resistant rating plate
  • Customized versions are also available on request

A number of reasons to collaborate with OpenSupply:

  • OpenSupply has extensive technical expertise
  • That makes OpenSupply a reliable and valuable supplier
  • OpenSupply also offers a wide range of products / accessories
  • That is why OpenSupply is always a useful addition to your network

Any questions?

If you want to know more about this product (or about the other products in the OpenSupply range), contact us today. We are happy to help you make the right choice in your specific circumstances.

Erik Franke


+31 541 700260

We will do our best to answer withing 24 hours.

Have a question? Please feel free to contact OpenSupply.

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