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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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#2303757
GT0426 Marathon Electric
Brand Marathon Electric
Model GT0426
$2,252.14 Each
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#2303492
GT3210 Marathon Electric
Brand Marathon Electric
Model GT3210
$589.21 Each
Free Shipping
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#2303816
W580-P Marathon Electric
Brand Marathon Electric
Model W580-P
$3,871.69 Each
Free Shipping
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#2303952
Y1642 Marathon Electric
Brand Marathon Electric
Model Y1642
$12,756.08 Each
Free Shipping
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#2303724
R507 Marathon Electric
Brand Marathon Electric
Model R507
$9,607.64 Each
Free Shipping
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#2303686
GT2420 Marathon Electric
Brand Marathon Electric
Model GT2420
$1,403.06 Each
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#2303412
E2131 Marathon Electric
Brand Marathon Electric
Model E2131
$398.26 Each
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#2303788
GT0429 Marathon Electric
Brand Marathon Electric
Model GT0429
$2,682.16 Each
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#2303704
GT3225 Marathon Electric
Brand Marathon Electric
Model GT3225
$1,734.00 Each
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#2303634
E2139 Marathon Electric
Brand Marathon Electric
Model E2139
$845.66 Each
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#2303373
GT1403 Marathon Electric
Brand Marathon Electric
Model GT1403
$256.17 Each
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#2303815
E567-P Marathon Electric
Brand Marathon Electric
Model E567-P
$3,127.64 Each
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