What is a Variable Frequency Drive?
A variable frequency drive is an electronic device that allows you to start, stop, and control the speed of a three phase motor. It is also a motor starter as it is equipped with overload protection. Read more »
What is the difference between a 'new surplus' motor and a 'factory new' motor?
Our New Surplus electric motors and drives are new and unused overstock or discontinued items offered at lower prices and come with our 90-day warranty.

Factory New products are competitively priced and come with a manufacturers warranty.
Variable frequency drives (VFDs or inverters) now play an important part in major industry.
Within the last 10 years they have been perfected to control and vary the speed of 3 phase electric motors. They serve many purposes, besides speed control. Homeowners and hobbyist alike, who have lathes or milling machines with a 3 phase motor, usually don't have 3 phase power to operate. These VFDs (instead of using a rotary phase converter) can now be used to convert single phase power to 3 phase power. Read more »
 
 
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Since 1913, Marathon Electric has been dedicated to providing customers with quality products for targeted applications. Located in Wausau, Wisconsin, the company delivers efficient mechanical power solutions using AC electric motors up to 1250 HP.
 

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Dealers Electric-Marathon    365TSTFC6006
75 HP, 3600 RPM, 575 Volts, TEFC, 365TS, Rigid, Marathon, E016
$11,356.75
Out of Stock
Dealers Electric-Marathon    365TSTFCA6001
75 HP, 3600 RPM, 230/460 Volts, TEFC, 365TS, Rigid, Marathon, GT1042
$7,241.59
Out of Stock
Dealers Electric-Marathon    365TSTFCA6002
75 HP, 3600 RPM, 575 Volts, TEFC, 365TS, Rigid, Marathon, GT1142
$8,732.62
Out of Stock
Dealers Electric-Marathon    365TSTFS14009
75 HP, 3600 RPM, 230/460 Volts, TEFC, 365TS, Rigid, Marathon, Y1625
$8,077.99
Out of Stock
Dealers Electric-Marathon    365TSTFS6001
75 HP, 3600 RPM, 230/460 Volts, TEFC, 365TS, Rigid, Marathon, E227
$8,608.41
Out of Stock
Dealers Electric-Marathon    365TSTFS6002
75 HP, 3600 RPM, 575 Volts, TEFC, 365TS, Rigid, Marathon, E322
$8,608.41
Out of Stock
Dealers Electric-Marathon    365TSTFS6501
75 HP, 3600 RPM, 460 Volts, TEFC, 365TS, Rigid, Marathon, E612
$9,126.95
Out of Stock
Dealers Electric-Marathon    365TSTFS6502
75 HP, 3600 RPM, 575 Volts, TEFC, 365TS, Rigid, Marathon, E665
$9,126.95
Out of Stock
Dealers Electric-Marathon    365TSTFCA6003
75 HP, 3600 RPM, 230/460 Volts, TEFC, 365TSC, C-Face Rigid, Marathon, GT1242
$9,899.23
Out of Stock
Dealers Electric-Marathon    365TSTGS16503
75 HP, 3600 RPM, 230/460 Volts, EPFC, 365TS, Rigid, Marathon, E575
$14,866.18
Out of Stock
Dealers Electric-Marathon    445THFN9106
100 HP, 900 RPM, 460 Volts, TEFC, 445T, Rigid, Marathon, W603
$22,812.35
Out of Stock
Dealers Electric-Marathon    445TTFN8115
100 HP, 900 RPM, 460 Volts, TEFC, 445T, Rigid, Marathon, L429
$19,032.85
Out of Stock
Dealers Electric-Marathon    444TTDC16077
100 HP, 1200 RPM, 230/460 Volts, DP, 444T, Rigid, Marathon, GT0047
$10,163.25
Out of Stock
Dealers Electric-Marathon    444TTDS16077
100 HP, 1200 RPM, 230/460 Volts, DP, 444T, Rigid, Marathon, U272
$12,147.17
Out of Stock
Dealers Electric-Marathon    445TTDS9477
100 HP, 1200 RPM, 460/796 Volts, DP, 445T, Rigid, Marathon, Y213
$17,869.10
Out of Stock
images/motors/BlueMax_t.jpg    444THFN8384
100 HP, 1200 RPM, 230/460 Volts, TEBC-AXIAL, 444TC, C-Face Rigid, Marathon, Y589
$24,142.93
Out of Stock
Dealers Electric-Marathon    315STFC6588
100 HP, 1200 RPM, 230/460 Volts, TEFC, 315S, Rigid, Marathon, R508
$8,405.32
Out of Stock
Dealers Electric-Marathon    444THFN19081
100 HP, 1200 RPM, 460 Volts, TEFC, 444T, Rigid, Marathon, W636
$15,348.04
Out of Stock
Dealers Electric-Marathon    444TTFC6080
100 HP, 1200 RPM, 575 Volts, TEFC, 444T, Rigid, Marathon, GT1147
$12,581.80
Out of Stock
Dealers Electric-Marathon    444TTFC6086
100 HP, 1200 RPM, 230/460 Volts, TEFC, 444T, Rigid, Marathon, GT1047
$10,869.44
Out of Stock

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