IEC Motors

IEC motors are designed to meet specifications of the International Electrotechnical Commission, IEC 34. Standard voltages at 50 Hz are 220, 400, 500, and 660 volts. At 60 Hz, 460 volts is standard. IEC motors are available with 2, 4, 6, or 8 poles. IEC motors are also available for multi-speed applications and may cover a wide power spectrum from 0.12 KW (0.16 HP) to 630 KW (840 HP).

IEC frame motors operate the same as NEMA frame motors but have metric dimensions and are therefore not mechanically interchangeable. IEC frame motors are built to European standards and can be B14 flange mounted, B5 flange mounted, or base mounted with or without a flange. To determine the correct IEC frame motor you will need to know type (frame size), rpm, kw or hp rating, voltage, mounting type, and starting method (wye/delta or across-the-line). Like NEMA frame motors, IEC motors may be multi-speed, flameproof, brake type, or special torque and duty characteristics.
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