WEG W22 Magnet Permanent Magnet Motors
The WEG W22 Magnet series represents the ultimate frontier in energy efficiency and motor technology. Utilizing high-performance permanent magnets inserted into the rotor, this synchronous motor completely eliminates rotor joule losses, achieving IE4 Super Premium and IE5 Ultra Premium efficiency levels. Designed exclusively to be driven by Variable Frequency Drives (VFDs), the W22 Magnet offers constant torque across a wide speed range (even at low RPMs without forced ventilation), exceptionally low operating temperatures, and a significantly reduced footprint. In many cases, a W22 Magnet motor can deliver the same power in a frame size one or two degrees smaller than a standard induction motor, saving critical space and weight. It is the perfect choice for compressors, fans, pumps, and conveyors where maximum energy savings, precise speed control, and high torque density are paramount.
Technical Specifications
| Featured Model | W22 Magnet 132S-4 (5.5 kW / 7.5 HP, IE5 Ultra Premium, IEC 132S Frame) |
|---|---|
| Brand / Manufacturer | WEG |
| Product Series | W22 Magnet (Permanent Magnet Synchronous Motor) |
| Power Range Covered | 0.12 kW to 450 kW (0.16 HP to 600 HP) |
| Frame Sizes (IEC) | 63 to 355A/B (Reduced Frame Size Capability) |
| Efficiency Classes | IE4 (Super Premium Efficiency), IE5 (Ultra Premium Efficiency) |
| Drive Requirement | Must be operated via Variable Frequency Drive (VFD) |
| Enclosure & Cooling | IP55 Standard (IP56/IP66 optional) / TEFC (IC411) |
Documentation & Resources
WEG W22 Magnet Motor Power Rating & Frame Size Matrix
Selection matrix for typical WEG W22 Magnet motors (1500 / 3000 RPM base speed ranges). Notice the reduced frame sizes compared to standard induction motors:
| Motor Power (kW / HP) | Base Speed | Optimized IEC Frame | Efficiency Class | Typical WEG Model Code |
|---|---|---|---|---|
| 1.5 kW (2.0 HP) | Up to 3000 RPM | 80 | IE5 Ultra Premium | W22 Magnet 80 1.5kW IE5 |
| 3.0 kW (4.0 HP) | Up to 3000 RPM | 90L | IE5 Ultra Premium | W22 Magnet 90L 3.0kW IE5 |
| 5.5 kW (7.5 HP) | Up to 3000 RPM | 112M | IE5 Ultra Premium | W22 Magnet 112M 5.5kW IE5 |
| 11.0 kW (15.0 HP) | Up to 3000 RPM | 132M | IE5 Ultra Premium | W22 Magnet 132M 11kW IE5 |
| 22.0 kW (30.0 HP) | Up to 3000 RPM | 160L | IE5 Ultra Premium | W22 Magnet 160L 22kW IE5 |
| 45.0 kW (60.0 HP) | Up to 3000 RPM | 200L | IE5 Ultra Premium | W22 Magnet 200L 45kW IE5 |
| 75.0 kW (100 HP) | Up to 1500 RPM | 250S/M | IE5 Ultra Premium | W22 Magnet 250S/M 75kW IE5 |
| 160 kW (215 HP) | Up to 1500 RPM | 315S/M | IE5 Ultra Premium | W22 Magnet 315S/M 160kW IE5 |
Induction to Permanent Magnet (IE5) Upgrade & Conversion Guide
Upgrade traditional AC induction motors to the highly advanced WEG W22 Magnet series for superior efficiency, smaller footprint, and precise VFD control:
| Legacy / Standard Motor Type | Current W22 Magnet Equivalent | Key Performance & System Upgrades |
|---|---|---|
| Standard IE2/IE3 Induction Motor | W22 Magnet IE5 Series Massive Energy Savings | Eliminates rotor losses. Up to 40% reduction in energy losses compared to IE2. The motor runs significantly cooler, extending bearing and insulation lifespan. |
| Oversized Induction Motor (Space Constrained) | W22 Magnet (High Power Density) Frame Reduction | Permanent magnet technology delivers more torque per volume. Often allows replacing a larger IEC frame (e.g., 160M) with a smaller frame (e.g., 132M) delivering the exact same power. |
| Induction Motor on VFD (Low Speed Issues) | W22 Magnet Series Constant Torque | Provides constant torque across an extremely wide speed range (up to 1000:1) without overheating, eliminating the need for expensive forced ventilation kits at low speeds. |
Expert Technical Sourcing & VFD Integration Notes
It is critical to note that the WEG W22 Magnet must be operated exclusively with a Variable Frequency Drive (VFD); it cannot be connected directly to the AC line (Direct-On-Line). Our engineering team can assist in pairing the W22 Magnet with compatible WEG drives (such as the CFW11 or CFW500 series) or verify compatibility with your existing VFDs. Whether you are building high-efficiency compressors, designing compact HVAC systems, or retrofitting a continuous-process plant to achieve IE5 efficiency, our experts will ensure you receive the correct motor sizing, drive parameters, and rapid global delivery.
Core Benchmark Model Standard Configurations
- W22 Magnet IE4 Super Premium
- W22 Magnet IE5 Ultra Premium
- W22 Magnet 1500 RPM Base Speed
- W22 Magnet 3000 RPM Base Speed
- WEG CFW11 VFD Drive Pairing
- W22 Magnet Compact Frame (Reduced)
- W22 Magnet Flange Mount B5
- W22 Magnet Cooling Tower Motor
