Permanent magnet synchronous motors (energy-saving and high-torque) 0.09–75 kW
Country: Germany · Model: PMSM
Low-voltage permanent magnet synchronous motors rated 0.09–75 kW in two series, energy-saving and high-torque. The rotor turns synchronously with the stator field, so there are no slip losses, and efficiency, control accuracy and power density are high. The motors work from a frequency converter.
- Series
- PM energy-saving; PM high-torque (based on K21R/WE1R)
- Frame
- 56–315 (energy-saving); 56–280 (high-torque)
- Power
- 0.09–75 kW; 0.25–75 kW
- Torque
- 0.6–860 N·m; 0.55–700 N·m
Technical specifications
| Series | PM energy-saving; PM high-torque (based on K21R/WE1R) |
|---|---|
| Frame | 56–315 (energy-saving); 56–280 (high-torque) |
| Power | 0.09–75 kW; 0.25–75 kW |
| Torque | 0.6–860 N·m; 0.55–700 N·m |
| Number of poles | 4, 6, 8 (and 12 in high-torque) |
| Protection degree | IP55, optionally IP56, IP65 |
| Cooling | IC411, IC416 (energy-saving); IC411 |
| Mounting | IM B3, B35, B5, B14, B34 |
| Supply | from a frequency converter |
Specifications are taken from the manufacturer’s technical documentation. Updated .
Description
At the same frame size a PM motor develops more power than an induction motor, and the precise following of the rotor behind the field makes it possible, for example, to fit several synchronous drives to one belt conveyor. Both series are derived from the design principles of the induction series K21R/WE1R, and are available in all mounting versions. Energy-saving motors have frames 56–315, 0.09–75 kW, torque 0.6–860 N·m, 4, 6 or 8 poles and cooling IC411 or IC416. High-torque motors have frames 56–280, 0.25–75 kW, torque 0.55–700 N·m, 4, 6, 8 or 12 poles and cooling IC411. Protection degree is IP55, optionally IP56 and IP65 per EN 60034-5, mounting IM B3, B35, B5, B14, B34 per EN 60034-7. Temperature −20…+40 °C, altitude up to 1000 m, optionally an RFID transponder iID 2000.
How to choose
The energy-saving series is taken when efficiency on pumps and fans matters most, and the high-torque series when a high torque up to 700 N·m is needed in a small frame. Compact VEMoDRIVE Compact drives with synchronous motors of class IE5 are also made on this technology. For selection there are catalogues of energy-saving motors of classes IE1, IE2 and IE3, and standard versions from stock in Germany are supplied within 36 hours. PM motors replace induction motors in variable-speed drives when modernising enterprises.
Request a price and lead time
Permanent magnet synchronous motors (energy-saving and high-torque) 0.09–75 kW. We reply within one business day.
Or email office@usk.ua or call +38 (044) 339-50-20.
FAQ
How do permanent magnet synchronous motors differ from induction motors?
The excitation field is created by rotor magnets, so there are no slip losses. At the same frame size they develop more power.
What power and torque do the two series of PM motors have?
Energy-saving ones have 0.09–75 kW and 0.6–860 N·m, high-torque ones 0.25–75 kW and 0.55–700 N·m.
Can such motors be fed directly from the grid?
No, they work from a frequency converter.
How many poles and what frames do PM motors have?
Energy-saving ones have 4, 6 or 8 poles and frames 56–315. High-torque ones also have 12 poles, frames 56–280.
Where are PM motors used?
In industrial drives, pumps, compressors, blowers, machine tools, conveyors and heating, ventilation and air conditioning systems.
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