IsoTec SE 300 CG – Synthetic Ester for Capacitors

Capacitor-grade synthetic ester impregnant based on IsoTec SE 300 – for power factor correction, filter and power-electronics capacitors.

What is IsoTec SE 300 CG?

IsoTec SE 300 CG is the capacitor-grade version of our synthetic ester IsoTec SE 300. It is supplied for the vacuum impregnation of film and paper-film capacitors. Limits for dielectric dissipation factor, water content and particle content are agreed with each customer to match the capacitor design and process.

Why a synthetic ester impregnant?

  • Fire safety: based on IsoTec SE 300 with a fire point above 300 °C (K-class according to IEC 61039)
  • Moisture tolerance: dielectric strength remains high even when the fluid takes up water
  • Oxidation stability for long service life of the capacitor

Applications

  • Power factor correction and harmonic filter capacitors
  • DC-link and snubber capacitors in power electronics and converters
  • Capacitors for traction, wind and solar converters
  • Special and pulse capacitors after qualification

Qualification in our laboratory

Before series supply we test, together with you, the properties that matter for your capacitor: dissipation factor and permittivity, gassing tendency under electrical stress, water and particle content, and compatibility with polypropylene film, paper and the other materials in your design. Background on these requirements: Dielectric fluids for capacitor impregnation.

Developing or sourcing a capacitor impregnant?

Ask for the IsoTec SE 300 CG data sheet and a trial quantity. IsoTec products are supplied to customers outside Germany.