Overview
General performance IE3 cast iron motors in frame sizes 71 to 355.
Standard IEC/EN 60034-30-1 on efficiency classes of line operated AC motors was published by the International Electro-technical Commission (IEC) on March 6, 2014. This IEC standard is concerned with the global harmonization of energy efficiency classes for electric motors. Compared with IEC/EN 60034-30: 2008, it significantly expands the range of products covered with the inclusion of 8-pole motors and introduces IE4 efficiency performance class for electric motors.
