Close this search box.
Xiameter PMX-200 Silicone Fluid

XIAMETER™ PMX-561 Transformer Liquid

Xiameter PMX-561 (formerly Dow Corning 561 Silicone Transformer Liquid) is a polydimethyl silicone liquid used for cooling and insulating transformers and other electrical equipment.

XIAMETER™ PMX-561 Transformer Liquid

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).

Xiameter PMX-561 was previously called Dow Corning 561 Silicone Transformer Liquid.


  • Suitable for transformers and other electrical equipment designed to operate at high temperatures or at very low temperatures.


  • Meets the requirements of IEC 60836 and ASTM D 4652-92
  • Silicon Oil
  • 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

Want More Information?

Contact a technical specialist for support, information and quotes.


To request any type of technical sheet or safety sheet.

Other products

Get in touch with Antala

The personal data voluntarily provided by you, through this web form will be treated by ANTALA LTD. as responsible for the treatment, in order to meet your request, query, complaint or suggestion, without communications or data transfers occurring and kept for the time necessary to meet your request. You can exercise the rights of access, rectification or deletion of your data, by writing to, for more information, you can consult our Privacy Policy

Request a Quote

Please send us your request to receive a customised offer, either for specific products or special requirements.


Please fill in the form to receive the .pdf document.