YD-HYD-H Series Marine Pole-changing Multi-speed Three-phase Induction Motors
Marine Multi-Speed Motors
YD-H marine multi-speed induction motors are a derivative of the Y-H series with pole-changing windings: speed changes in steps according to the load, matching power to demand and simplifying the speed-changing system. Two-speed versions have 4/2, 6/4, 8/4, 8/6, 12/6 and 10/8 poles, three-speed versions 6/4/2, 8/4/2 and 8/6/4. Cast-iron housing, windings and parts impregnated against damp, fungus and salt mist, IP44, class B or F insulation, 380/440 V, 50/60 Hz, S1 duty. The standard catalogue range is 0.35–55 kW, frames H80–280.
Specifications
- Pole combinations
- 2 speeds: 4/2, 6/4, 8/4, 8/6, 12/6, 10/8; 3 speeds: 6/4/2, 8/4/2, 8/6/4
- Power
- 0.35–55 kW per catalogue table (series rated up to 250 kW)
- Frame sizes
- H80–280 per catalogue table (series rated up to H355)
- Voltage / frequency
- 380/440 V, 50/60 Hz
- Protection / insulation
- IP44; class B or F
- Mounting
- IM B3, B35, B5, V1
- Duty / conditions
- S1; 0…+45 °C, humidity ≤ 95 %, inclination and swing ±22.5°
Applications
- Ship machinery with step speed control
- Fans with switchable capacity
- Variable-duty pumps
- Auxiliary machinery of offshore platforms
We will select the right size for your task and prepare a quotation under a direct SDS contract.
