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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.
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$3,025.14 Each
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$13,032.73 Each
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#5228503
SquareD HOM1224L125PC HOM INDR 125A MLO 12/24CIR
Brand SquareD
Model HOM1224L125PC
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#5219132
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#5219134
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#5229129
SquareD HOM3060L225PC HOM INDR 225A MLO 30/60CIR
Brand SquareD
Model HOM3060L225PC
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#5229125
SquareD HOM3060M100PC HOM INDR 100A MB 30/60CIR
Brand SquareD
Model HOM3060M100PC
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#5229151
SquareD HOM4080M200PC HOM INDR 200A MB 40/80CIR
Brand SquareD
Model HOM4080M200PC
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#5227150
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#5739492
WEG 00158ES1RAD56N 1.5HP 1800 1 60 115/230V
Brand WEG
Model 00158ES1RAD56N
$527.79 Each
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#5739625
WEG 00418ET3YAL112MFF-W2 4kW 1800 3 60/50 460V
Brand WEG
Model 00418ET3YAL112MFF-W2
$389.85 Each
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#5739716
WEG 00718ET3H213JM-S 7.5HP 1800 3 60 575
Brand WEG
Model 00718ET3H213JM-S
$790.64 Each
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