... ~400hz Output of low speed nominal torque, secure operation Over-load/over-current/short-circuit/over ... , over-load etcAPPLICATION:Fan, water pump, compressorWeave and chemical fibre machine Injection machinePetrochemical industry, metallurgy industry, ... cement machinery,machanism, belt transport industryDrilling and piling machineFood and carpentry machineAND SO ONDESIGN: Complete series design ...