FSD Other models

The register lists here 28 versions with 2.2 to 75 kW, exclusively two-pole. Full-load efficiencies range from 84.17 to 95.63% and at 75% load from 83.54 to 95.44%. Frame sizes run from 90 to 280 under IEC, all motors carry protection rating IP55; mains voltages recorded range from combinations of 400/415 V to 400/415/690 V. Manufacturing is mainly in China, with further output from Italy and Germany, tested to the GEMS 2019 determinations with test methods A and 2-1-1B. Ten versions reach the High Efficiency Level 2018 classification, a further five the older 2005 classification.

With exclusively two-pole, high-speed motors, the programme targets applications with high speed demand such as pumps, compressors and special machinery, for which FSD runs several parallel series under different internal designations.

When buying used, what matters is bearing condition – particularly stressed on two-pole motors – and a checked insulation resistance of the winding, visible overheating marks on the terminal box and fan cover, and a legible nameplate with frame size, voltage and efficiency class. Because of the different internal series, it is worth matching the exact model designation before replacing parts.