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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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$709.63 Each
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$973.93 Each
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#5788864
BALDOR EMM08752-AP M3AA 80MB 2P B3 0.75kW
Brand Baldor
Model EMM08752-AP
$295.43 Each
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#5788869
BALDOR EMM09222-AP M3AA 90LC 2P B3 2.2kW
Brand Baldor
Model EMM09222-AP
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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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#5788877
BALDOR EMM11044-AP M3AA 112MB 4P B3 4kW
Brand Baldor
Model EMM11044-AP
$716.00 Each
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#5788883
BALDOR EMM13556-AP M3AA 132ME 6P B3 5.5kW
Brand Baldor
Model EMM13556-AP
$1,312.00 Each
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#5788886
BALDOR EMVM08112C-AP M3AA 80MC 2P B14 1.1kW
Brand Baldor
Model EMVM08112C-AP
$446.86 Each
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#5788890
BALDOR EMVM08754C-AP M3AA 80ME 4P B14 0.75kW
Brand Baldor
Model EMVM08754C-AP
$429.14 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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