Xiameter PMX-561 (formerly DC 561) is a polydimethyl silicone liquid used for cooling and insulating transformers and other electrical equipment.


Xiameter PMX-561 has excellent electrical insulation properties over a wide temperature range, combined with high thermal stability.

The product can be used as an alternative to organic transformer oil.

Xiameter PMX-561 meets the requirements of:

  • International Electrotechnical Commission (IEC) 836 “specifications for silicone liquid for electrical purposes” (Silicone Type T-1).
  • ASTM D 4652-92 “silicone fluids for electrical insulation”.
  • IEC 1100 – “Classification of insulating liquids according to fire point and net calorific value” (Class K3).


  • Suitable for transformers and other electrical equipment designed to operate at high temperatures or at very low temperatures.
    For pack sizes, please see Additional Information.


  • Meets the requirements of IEC 836 and ASTM D 4652-92
  • Essentially non-toxic
  • Environmentally safe
  • Compatible with a wide range of solid electrical insulating materials
  • Contains no additives
  • High thermal stability and oxidation resistance
  • Higher fire point and lower heat release rate than other types of class K insulating liquids
  • Good electrical properties and operating capabilities over a wide temperature range
  • Non-sludging

This product is part of the Xiameter range

Additional information


One Part


25kg Pail, 200Kg Drum


Electronics, General Industry, Power Industry


There are no reviews yet.

Be the first to review “Xiameter PMX-561 TRANSFORMER LIQUID”

Your e-mail address will not be published. Required fields are marked *

* Checkbox GDPR is required


I agree


To request any type of technical sheet or safety sheet.

Are you looking for a specific product?

Start searching by the name of the product and you will see it automatically.