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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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Item
Price
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$265.51 Each
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$290.25 Each
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#5788876
BALDOR EMM11042-AP M3AA 112MB 2P B3 4kW
Brand Baldor
Model EMM11042-AP
$683.43 Each
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#5788882
BALDOR EMM13554-AP M3AA 132MB 4P B3 5.5kW
Brand Baldor
Model EMM13554-AP
$917.14 Each
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#5788889
BALDOR EMVM08752D-AP M3AA 80MB 2P B5 0.75kW
Brand Baldor
Model EMVM08752D-AP
$339.43 Each
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#5788891
BALDOR EMVM08754D-AP M3AA 80ME 4P B5 0.75kW
Brand Baldor
Model EMVM08754D-AP
$345.71 Each
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#5788892
BALDOR EMVM09114C-AP M3AA 90LC 4P B14 1.1kW
Brand Baldor
Model EMVM09114C-AP
$476.57 Each
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#5788903
BALDOR EMVM10032D-AP M3AA 100LC 2P B5 3kW
Brand Baldor
Model EMVM10032D-AP
$630.86 Each
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#5788911
BALDOR EMVM10224D-AP M3AA 100LE 4P B5 2.2kW
Brand Baldor
Model EMVM10224D-AP
$562.29 Each
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#5788918
BALDOR EMVM13036C-AP M3AA 132MC 6P B14 3kW
Brand Baldor
Model EMVM13036C-AP
$990.29 Each
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#5788926
BALDOR EMVM13556C-AP M3AA 132ME 6P B14 5.5kW
Brand Baldor
Model EMVM13556C-AP
$1,413.14 Each
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$9,608.00 Each
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