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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.
Item ID
Item
Price
Quantity
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#2303801
GT3533 Marathon Electric
Brand Marathon Electric
Model GT3533
$2,221.78 Each
Free Shipping
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#2303496
GT3405 Marathon Electric
Brand Marathon Electric
Model GT3405
$743.95 Each
Free Shipping
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#2303344
R452A Marathon Electric
Brand Marathon Electric
Model R452A
$536.49 Each
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#2303313
N347 Marathon Electric
Brand Marathon Electric
Model N347
$473.08 Each
Free Shipping
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#2303416
E2127 Marathon Electric
Brand Marathon Electric
Model E2127
$365.51 Each
Free Shipping
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#2303898
Y822A Marathon Electric
Brand Marathon Electric
Model Y822A
$5,723.94 Each
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#2303302
X264 Marathon Electric
Brand Marathon Electric
Model X264
$145.47 Each
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#2303513
GT0408 Marathon Electric
Brand Marathon Electric
Model GT0408
$650.71 Each
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#2303660
GT3221 Marathon Electric
Brand Marathon Electric
Model GT3221
$1,259.30 Each
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#2303847
E570-P Marathon Electric
Brand Marathon Electric
Model E570-P
$3,808.90 Each
Free Shipping
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#2303962
E284 Marathon Electric
Brand Marathon Electric
Model E284
$21,289.56 Each
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#2303572
GT3115 Marathon Electric
Brand Marathon Electric
Model GT3115
$954.36 Each
Free Shipping