W22 Prime Induction Motor
WEGElectric MotorsW22-Prime

W22 Prime Induction Motor

WEG W22 Prime induction motor offering IE4 as standard and IE5 in many frames, for direct-on-line or drive operation without giving up induction simplicity.

Specifications

Efficiency class
IE4 standard, IE5 in many frames
Output range (IEC)
11–1,000 kW
Voltage / frequency
400/690 V, 50 Hz
Cooling
IC411 / IC416
Starting
Direct-on-line (DOL) or variable speed drive (VSD)
Rotor
Squirrel-cage induction (magnet-free)
Frame compatibility
Same as standard IE3 frame sizes

W22 Prime is the next generation of WEG's widely used W22 induction motor platform. It keeps the robustness and simplicity of a squirrel-cage induction motor while offering IE4 efficiency as standard and reaching IE5 in many frame sizes.

Its key advantage is that it can start direct-on-line without permanent magnets or a mandatory drive, and the same motor can also run on a variable speed drive. Frame sizes match standard IE3 motors, so replacements in existing plants do not require changes to foundations or couplings.

An optimised electromagnetic design, improved thermal performance and lower noise and vibration levels cut energy costs noticeably in continuously running loads such as pumps, fans and compressors. WEG is releasing the range in stages by frame group. Euronorm offers efficiency analysis, selection support and quotations for replacing existing motors with W22 Prime.

Features

IE4 standard, IE5 available

The range offers IE4 as standard and reaches IE5 in many frame sizes.

High efficiency without a drive

It starts direct-on-line without permanent magnets or a mandatory inverter.

DOL and VSD ready

The same motor can run from the mains or from a variable speed drive.

Same frames as IE3

Standard IE3 frame sizes are kept, making retrofits in existing plants straightforward.

Low noise and vibration

Optimised electromagnetic and thermal design reduces noise and vibration.

Applications

  • Centrifugal pumps
  • Fans and blowers
  • Compressors
  • Energy-efficiency motor replacement projects

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