Information
Three-phase motors are operated with three-phase alternating current or “three-phase current”. This type of current carries its own periodically alternating voltage in each of three separate conductors, the time sequences of which are offset by 120° in advance and in retardation respectively with respect to the other two conductor voltages. They follow the IEC standards.
The AC motor (for alternating or three-phase current) is the workhorse of the industry. The motors are also referred to as induction motors and, depending on the design and construction, as squirrel-cage motors and TEFC (Totally Enclosed Fan Cooled) motors.
The large selection of AC motors allows a high degree of adaptation to local conditions and individual requirements in operation.
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- 3-phase AC motor (asynchronous motor)
- Power: 0.09 – 30 kW
- Torque: 0.31 – 144.9 Nm
- Voltage: 230/400V 50Hz – 400/690V 50Hz
- 2-, 4-, 6-, 8-pole, also pole-changing
- Frame sizes: IEC 56 to 180
- Insulation class: F
- Degree of protection: IP55
- Different versions/certification: (UL, CSA, ATEX,…)
Applications 3 phase asynchronous motors
- These motors are used in almost all areas of industry, mentioned as an example:
- Pumps, fans, ventilators
- Machine tools
- Machinery and plant engineering in all industries
- Conveyor, transport and cable car technology
- Building technology
- and much more