Brook Crompton manufactures several different three phase AC motors made from cast iron or aluminum available in frame sizes from 56 to 586L. 3 phase motor types include variable speed and brake motors. Their W NEMA line offers a horsepower range of 0.166 HP to 30 HP in the aluminum body and a range of 0.5 HP to 500 HP for cast iron. Their 3 phase variable speed W motors feature 380-480 volts, 50-60 Hz.

Peerless Electric manufactures 3 phase squirrel cage induction motors for heavy duty applications. These range in power from 1/20 HP to 50 HP with rated speeds from 690 to 350 RPM. Custom design options for three phase motors include "C' or "D" mounting flanges, Class A, B, F or H insulation, with TENV (totally enclosed, not ventilated), TEFC (totally enclosed, fan cooled) , TEXP (totally enclosed, explosion proof), open or ODP (open, drip proof).