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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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#5805298
Marathon GT1048A 125, 3600, TEFC, 444TS, 3/60/460
Brand Marathon Electric
Model GT1048A
$5,649.39 Each
Free Shipping
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$308.13 Each
Free Shipping
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#2303777
GT3426 Marathon Electric
Brand Marathon Electric
Model GT3426
$3,050.64 Each
Free Shipping
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#2303905
U911A Marathon Electric
Brand Marathon Electric
Model U911A
$7,116.03 Each
Free Shipping
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#2303486
GT1409 Marathon Electric
Brand Marathon Electric
Model GT1409
$386.14 Each
Free Shipping
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#2303621
GT3414 Marathon Electric
Brand Marathon Electric
Model GT3414
$1,094.93 Each
Free Shipping
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#2303467
GT2505 Marathon Electric
Brand Marathon Electric
Model GT2505
$640.95 Each
Free Shipping
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#2303704
GT3225 Marathon Electric
Brand Marathon Electric
Model GT3225
$1,734.00 Each
Free Shipping
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#2303604
GT0514 Marathon Electric
Brand Marathon Electric
Model GT0514
$1,042.22 Each
Free Shipping
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#2303458
N684A Marathon Electric
Brand Marathon Electric
Model N684A
$765.78 Each
Free Shipping
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#2303715
Y1610 Marathon Electric
Brand Marathon Electric
Model Y1610
$1,893.36 Each
Free Shipping
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#2303943
Y1647 Marathon Electric
Brand Marathon Electric
Model Y1647
$16,060.93 Each
Free Shipping