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

Three-phase transformer Type DSI


Max input voltage: 1000 V
Link group: Yy0, Dyn5, …
Max output voltage: 50 V
Protection class: IP 00
Insulation class: B
Ambient temperature: 40 ° C
Frequency: 50-60 Hz
Power range: 40 VA – 18 kVA
Output current on – screw terminals max. 135 a
– bolt max. 450 A
– Cu rail max. 1500 A
Protection class: I

Three-phase transformer Type DSI

Within the power range up to 1,500 kVA, we provide three-phase transformers with an input voltage of up to 1000 V, and a design and construction that comply with EN 61588 or VDE 0570, and other quality marks, such as UL / CSA, as well. OpenSupply has a wide range of designs that are suitable for a multitude of applications. High-quality materials and vacuum impregnation are used in the construction of the transformers, among which the Type DSI three-phase transformer.



To deliver power to devices that must be supplied with extra low voltage (SELV, max. 50 V) (for instance portable tools).


  • Open design (IP 00, installation max. IP 23)
  • Coils separated by two-chamber design (safe separation)
  • Mounted on brackets (DIN 41307)
  • Safe connections with screw terminals according to VBG 4 (in the higher current range on bolts or copper bars)
  • High-quality, tropical vacuum impregnation using black polyester resin
  • Wear-proof, heat-, UV- and solvent-resistant rating plate
  • Customization available upon 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.

New Field