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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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#5739935
WEG 04018OT3E324TSC-F2 40 1800 ODP 230/460 324TSC
Brand WEG
Model 04018OT3E324TSC-F2
$1,673.59 Each
Free Shipping
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#5739975
WEG 12518OT3H405T-G 125HP 1800 3 60 575V G
Brand WEG
Model 12518OT3H405T-G
$4,778.72 Each
Free Shipping
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#5740027
WEG 40036OP3HFP447/9TSW4 400HP 3600 3 60 575
Brand WEG
Model 40036OP3HFP447/9TSW4
$12,564.90 Each
Free Shipping
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#2303329
G565 Marathon Electric
Brand Marathon Electric
Model G565
$199.66 Each
Free Shipping
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#2303335
E2150 Marathon Electric
Brand Marathon Electric
Model E2150
$349.04 Each
Free Shipping
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#2303930
Y1639 Marathon Electric
Brand Marathon Electric
Model Y1639
$12,552.02 Each
Free Shipping
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#2303336
E2125 Marathon Electric
Brand Marathon Electric
Model E2125
$349.04 Each
Free Shipping
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#2303662
GT3521 Marathon Electric
Brand Marathon Electric
Model GT3521
$1,259.30 Each
Free Shipping
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#2303700
GT3224 Marathon Electric
Brand Marathon Electric
Model GT3224
$1,484.84 Each
Free Shipping
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#2303658
U648A Marathon Electric
Brand Marathon Electric
Model U648A
$1,025.76 Each
Free Shipping
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#2303906
U272 Marathon Electric
Brand Marathon Electric
Model U272
$6,535.42 Each
Free Shipping
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#2303305
X273 Marathon Electric
Brand Marathon Electric
Model X273
$112.76 Each
Free Shipping