Rototech Other models

The register lists here 83 versions with 0.75 to 160 kW, two- to eight-pole, all rated for 415 V. Full-load efficiencies run between 71 and 95.4%, and at 75% load between 69 and 95.3%. All 83 motors are built to protection rating IP55, frame sizes run from 80 to 355 under IEC, manufactured consistently in China and tested under the older 2000 Legacy standard with test method B. None of the 83 motors is classified under the Australian High Efficiency Level. The mounting code is consistently the combination B3/B5/B35.

The page thus covers a uniformly built IEC standard-motor programme without efficiency certification, common in the spares trade and retrofitting of older plant; the wide spread of frame sizes up to 355 shows that Rototech also carries larger industrial drives in its programme.

When buying used, what matters is bearing condition and a checked insulation resistance of the winding, visible overheating marks on the terminal box and fan cover, the condition of shaft and key, and a legible nameplate with frame size, pole count and efficiency class; since none of the motors carries a High Efficiency Level certification, for continuous duty it is worth comparing against IE2/IE3 alternatives. Spares depend on the distribution channel.