MSD Series Double-speed 3-Phase Aluminum Motors
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MSD Series Double-speed 3-Phase Aluminum Motors
Product catalog summary
Overview: This document provides technical data for the MSD series of three-phase asynchronous double-polarity motors with aluminum housing, designed for 400V/50Hz operation. It includes detailed specifications for various models, focusing on power, speed, efficiency, power factor, current, rated torque, and other performance metrics.
Specifications: The document lists multiple models such as MSD711-2/4, MSD712-2/4, MSD801-2/4, etc., with their respective power ratings (in KW), speeds (in r/min), efficiencies (in %), power factors (CosΦ), and current (in A). Motors are categorized by pole configurations (2P, 4P, 6P, 8P, 12P) with performance metrics provided for each.
Performance Metrics: Key indicators include:
- Efficiency: Ranges from 48% to 90% depending on model and configuration.
- Power Factor: Varies between 0.44 and 0.93, indicating phase difference between voltage and current.
- Rated Torque: Provided in Newton-meters (N.M), indicating the rotational force the motor can exert.
- Tst/Tn (Starting Torque to Rated Torque): Ratio of starting torque to rated torque.
- Ist/In (Starting Current to Rated Current): Ratio of starting current to rated current.
- Tmax/Tn (Maximum Torque to Rated Torque): Maximum torque relative to rated torque.
Mountings and Positions: Components and mounting positions for standard motors are outlined, adhering to IEC 60034-7 standards, including parts like screws, gaskets, oil seals, and endshields.
Bearings and Oil Seals: Details on bearings and oil seals used in different motor frames, specifying drive end and non-drive end components.
Recommendations: Users are advised to contact the manufacturer for concrete data before ordering, as the catalogue serves as a reference and specifications may change.
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Catalog excerpts
M otor Spare Part List "Exploded Drawing" M ountings and Positions 1. Screw 2. Gasket 3. Oil seal 4. Front endshield 5. B14 fl ange 6. B5 fl ange 7. TB cover 8. TB fi xing screws 9. TB upper gasket 10. Terminal board fi xing nut 11. Terminal bridge 12. Terminal pin 13. Terminal shim 14. Terminal board 15. TB fi xing screws 16. TB base 17. Cable gland 18. TB bottomgasket 19. Frame 20. Preload washer 21. Key 22. Rotor 23. Bearing 24. NDE endshield 25. Cooling fan 26. Fan circlip 27. Fan cover 28. Fan cover fi xing shim 29. Fan cover fi xing screws 30. Endshield fi xing nut 31. Rivet 32. Nameplate...
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