TYC Series
TYC Series Three-Phase Permanent Magnet Synchronous Motor
A line-start permanent magnet synchronous motor: it starts asynchronously like an induction machine and then pulls into synchronism — no drive required to run it, and no slip once it is there.

TYC uses rare-earth permanent magnets to give high efficiency and high power factor with low current, low temperature rise, no slip and a stable speed. Because it starts asynchronously, it can be switched directly onto the supply; paired with a suitable drive it will also run variable-speed across a range.
Against a YE3 induction motor of the same rating, the brochure figure is an average energy saving above 5% across the 25–120% load range.
Note on efficiency classes: TYC is built to grade 1 and grade 2 of GB 30253, the Chinese efficiency standard for permanent magnet synchronous motors. That is a different scale from GB 18613 / IEC 60034-30-1, which covers line-fed induction machines — the grades are not interchangeable, which is why the efficiency filter on the product list returns induction series only. Permanent magnet motors can also be assigned an IE code, but under GB/T 32891.2—2019 (identical to IEC TS 60034-30-2), a separate classification for variable-speed AC machines. If your specification calls for an IE code on a permanent magnet motor, ask us and we will quote it against that standard rather than converting a GB 30253 grade.
Core specifications
| Parameter | Value |
|---|---|
| Frame size | H132 – H280 mm |
| Power range | 5.5 – 55 kW |
| Rated speed | 375 / 500 / 750 / 1000 / 1500 rpm (4 to 16 pole) |
| Efficiency | GB 30253 grade 1 or grade 2 |
| Power factor | 0.93 |
| Voltage & frequency | 380 V, 50 Hz (custom on request) |
| Protection degree | IP54 / IP55 |
| Insulation class | Class F |
| Cooling | IC411 |
| Starting | Asynchronous start, synchronous running (line start capable) |
Standards and certification
- GB 30253 (permanent magnet synchronous motor efficiency)
Typical applications
- Fans, pumps and compressors
- Textile machinery, flotation cells, crushers
- Beam pumping units and other speed-stable or speed-adjustable duty
Selection guide
FAQ
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Certificates and test reports are issued against the specific model and rating rather than the series, so we send the ones that apply to your order. Tell us the rating and the market and we will send them.
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Technical articles on this series
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