three phase, total enclosed and fan cooled squirrel cage, IEC standard,cast iron casing Protection class:IP54 Insulation:B AEEF series three phase induction motor/electric motor/IEC motorMain Spec:AEEF series motor is three-phase ,totally enclosed and fan-cooled electric motor with squirrel cage, IP54, insulation Class B (other voltages and cycles or insulation Class F are available if request.) ...