THREE PHASE INDUCTION MOTORS FOR CONVERTER DUTY – TOTALLY ENCLOSED – LOW VOLTAGE 400 / 690 V 50 HZ – SIZE 450 - IC 411 EXTERNALLY FAN COOLED - IC 416 FORCED VENTILATION – IP 55 PROTECTION – WELDED COPPER BARS SQUIRREL CAGE ROTOR – S1 SERVICE – ACCORDING TO IEC STANDARDS