Rotek Other models

The register lists here 55 versions with 0.18 to 90 kW, two- to six-pole, full-load efficiencies from 65.9 to 94.9% and at 75% load from 65.1 to 96%. Frame sizes run from 63 to 280, protection is almost exclusively IP55 (54 of 55). China (46) and Taiwan (9) are recorded as manufacturing countries. Testing mostly followed the older 2000 Legacy AS/NZS 1359.5 standard (43), alongside the 2004 version (12), with test methods A (51) and B (4); none of the 55 motors carries a documented High Efficiency classification under GEMS.

With its broad output band from under 1 kW to 90 kW and manufacturing in China and Taiwan, Rotek covers a wide field of standard applications, from small fans to larger pump and conveyor drives.

When buying used, what matters is bearing condition and a checked insulation resistance of the winding, visible corrosion on the terminal box and fan cover, the condition of shaft and key, and a legible nameplate with frame size and pole count; since none of the motors carries a High Efficiency classification, actual efficiency should be measured if in doubt. Spares and support depend on the distribution channel.