Totally enclosed fan cooled sq. cageAL power - Aluminum Body squirrel cage motors up to IEC frame 180LChallenger series squirrel cage motors - Integral feet rugged cast iron constructionEnergy efficient eff2eff1Rationalized product featuresEff 1 in line with is:12615 CMEP600% max. stg. currentRtd btd ( frame 280 onward )