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    444TSTGN16502
125 HP, 3600 RPM, 460 Volts, EPFC, 444TS, Rigid, Marathon, U073A
$28,374.01
Out of Stock
Dealers Electric-Marathon    449THFS9101
150 HP, 900 RPM, 460 Volts, TEFC, 447/449T, Rigid, Marathon, W615
$34,455.81
Out of Stock
Dealers Electric-Marathon    449TTFS8111
150 HP, 900 RPM, 460 Volts, TEFC, 447/449T, Rigid, Marathon, L442
$27,012.36
Out of Stock
Dealers Electric-Marathon    447TTDC16077
150 HP, 1200 RPM, 460 Volts, DP, 447T, Rigid, Marathon, GT0053
$12,347.87
Out of Stock
Dealers Electric-Marathon    447TTDN16077
150 HP, 1200 RPM, 460 Volts, DP, 447T, Rigid, Marathon, U274
$14,179.59
Out of Stock
Dealers Electric-Marathon    505UTDS1590
150 HP, 1200 RPM, 460/796 Volts, DP, 505TZ, Rigid, Marathon, Y220
$27,974.20
Out of Stock
Dealers Electric-Marathon    445THFN9087
150 HP, 1200 RPM, 460 Volts, TEFC, 445T, Rigid, Marathon, W614
$20,321.84
Out of Stock
Dealers Electric-Marathon    445TTFN6087
150 HP, 1200 RPM, 460 Volts, TEFC, 445T, Rigid, Marathon, E289
$21,936.92
Out of Stock
Dealers Electric-Marathon    445TTFN6587
150 HP, 1200 RPM, 460 Volts, TEFC, 445T, Rigid, Marathon, E448
$19,814.39
Out of Stock
Dealers Electric-Marathon    445TTFN6591
150 HP, 1200 RPM, 575 Volts, TEFC, 445T, Rigid, Marathon, E407
$17,833.72
Out of Stock
Dealers Electric-Marathon    447TTFC6080
150 HP, 1200 RPM, 575 Volts, TEFC, 447T, Rigid, Marathon, GT1153
$16,844.19
Out of Stock
Dealers Electric-Marathon    447TTFC6087
150 HP, 1200 RPM, 460 Volts, TEFC, 447T, Rigid, Marathon, GT1053
$16,526.84
Out of Stock
Dealers Electric-Marathon    445TTGN16588
150 HP, 1200 RPM, 460 Volts, EPFC, 445T, Rigid, Marathon, U090A
$29,765.44
Out of Stock
Dealers Electric-Marathon    444TTDC6060
150 HP, 1800 RPM, 460 Volts, DP, 444T, Rigid, Marathon, GT0052
$11,065.23
Out of Stock
Dealers Electric-Marathon    444TTDS16043
150 HP, 1800 RPM, 575 Volts, DP, 444T, Rigid, Marathon, U911A
$13,226.13
Out of Stock
Dealers Electric-Marathon    444TTDS6060
150 HP, 1800 RPM, 460 Volts, DP, 444T, Rigid, Marathon, E924
$11,442.40
Out of Stock
Dealers Electric-Marathon    444TSTDCD4332
150 HP, 1800 RPM, 460 Volts, DP, 444TS, Rigid, Marathon, U535A
$10,820.10
Out of Stock
Dealers Electric-Marathon    444TSTDS16038
150 HP, 1800 RPM, 460 Volts, DP, 444TS, Rigid, Marathon, E792A
$11,442.40
Out of Stock
Dealers Electric-Marathon    444TSTDS4332
150 HP, 1800 RPM, 460 Volts, DP, 444TS, Rigid, Marathon, U535
$13,818.68
Out of Stock
Dealers Electric-Marathon    444TSTDS16034
150 HP, 1800 RPM, 460 Volts, DP, 444TSC, C-Face Rigid, Marathon, U456A
$15,566.73
Out of Stock

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