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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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#1847271
WWE AT12-18-575-56CB 1/2 HP 1800RPM 56C FR 575
Brand WorldWide Electric
Model AT12-18-575-56CB
Obsolete
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#1847205
WWE AT34-18-56 3/4 HP 1800RPM 56 FR 208-230/460
Brand WorldWide Electric
Model AT34-18-56
Obsolete
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$2,212.23 Each
Free Shipping
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#1847569
WWE PEWWE150-18-575-445TBB 150HP 1800RPM 445T FR 575
Brand WorldWide Electric
Model PE150-18-575-445TBB
Obsolete
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#1847528
WWE PEWWE5-12-575-215T 5HP 1200RPM 215T FR 575
Brand WorldWide Electric
Model PE5-12-575-215T
Obsolete
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#1847643
WWE WWE250-12-449TC 250HP 1200RPM 449TC FR 460
Brand WorldWide Electric
Model 250-12-449TC
Obsolete
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$5,378.35 Each
Free Shipping
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$483.71 Each
Free Shipping
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$1,771.08 Each
Free Shipping
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#5058391
AURORA 4WP1HS075HE 75HP 1800RPM 230/460 365TP
Brand Aurora Motors
Model 4WP1HS075HE
$3,032.67 Each
Free Shipping
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#5058281
Baldor 14C051X993G1 40HP,1000,364T,TEFC
Brand Baldor
Model 14C051X993G1
$6,314.78 Each
Free Shipping