Xiameter® PMX 561 is a cooling and insulating fluid for transformers and other electrical equipment. It has excellent dielectric properties. The transformer fluid is compatible with many electrical insulation materials and offers high thermal stability and oxidation resistance. The colourless Xiameter® PMX 561 is non-toxic, non-halogen and leaves no residues. It meets the requirements of IEC 836 and ASTM D 4652-92.