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Description: Most industrial motors require AC (alternating current) voltage whose polarity oscillates 60 times a second (for a frequency of 60 Hertz) between positive and negative. Single phase AC motors have brushes just like DC motors. Most of them have capacitors to assist starting and to establish the direction of rotation. Changing direction implies changes in the capacitors’ connection. Speed is directly proportional to the applied voltage (just like DC motors). Usage is restricted to low-power uses (home appliances like vacuum cleaners, washing machines, coffee grinders, or power tools like rotary hammers etc.). For higher power requirements, three-phase AC motors are used. These do not have carbon brushes to wear out, their rotors (called squirrel cages) have no electrical connections, thus making them extremely robust and long-lived. Only the stator windings are connected to the power line. They just keep turning as long as their ball bearings are OK. Changing direction requires swapping any two of the three phase lines. Speed control is done by modifying the frequency of the AC delivered to the motor; this can be done using complex devices called AC drives.
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Price
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$50,386.45 Each
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#5789248
$46,175.15 Each
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#5789314
BALDOR SSEWDM08554C-B M3MA 80MB 4P B14 0.55KW
Brand Baldor
Model SSEWDM08554C-B
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#5789324
BALDOR SSEWDM09114D-B M3MA 90MA 4P B5 1.1KW
Brand Baldor
Model SSEWDM09114D-B
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#5789326
BALDOR SSEWDM09152C-B M3MA 90MA 2P B14 1.5KW
Brand Baldor
Model SSEWDM09152C-B
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#5789328
BALDOR SSEWDM09154C 3GMA 092 320-CSA
Brand Baldor
Model SSEWDM09154C
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#5789332
BALDOR SSEWDM09222D-B M3MA 90MB 2P B5 2.2KW
Brand Baldor
Model SSEWDM09222D-B
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#5789335
BALDOR SSEWDM09756C-B M3MA 90MB 6P B14 0.75KW
Brand Baldor
Model SSEWDM09756C-B
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#5789339
BALDOR SSEWDM10032D-B M3MA 100LA 2P B5 3KW
Brand Baldor
Model SSEWDM10032D-B
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#5789341
BALDOR SSEWDM10034C-B M3MA 100LB 4P B14 3KW
Brand Baldor
Model SSEWDM10034C-B
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#5789346
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Brand Baldor
Model SSEWDM10224-B
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