Features: Input voltage: 100/120/230/240 (+/-10%)Output power: 1KVA to 150KVA Frequency: 50/60Hz Voltage deviation: (+/-) 5% (loaded), (+/-) 3% (no load) Neutral point voltage unbalance less than 2% The original bobbin design has been improved reliability to approved safety standard Adoption of low loss core materials for miniaturization Sharp reduction of cost has been realized by standard materials and designs Insulation grade: class H For industrial robots, machine tools, semiconductor manufacturing machines, medical instruments etc.