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    256TTDX16032
20 HP, 1800 RPM, 200-230/460 Volts, DP, 256T, Rigid, Marathon, E723B
$2,045.80
Out of Stock
Dealers Electric-Marathon    256TTDX16033
20 HP, 1800 RPM, 200-230/460 Volts, DP, 256T, Rigid, Marathon, E723B-P
$2,437.81
Out of Stock
Dealers Electric-Marathon    256TTDN16049
20 HP, 1800 RPM, 230/460 Volts, DP, 256TC, C-Face Rigid, Marathon, U438A
$2,731.64
Out of Stock
Dealers Electric-Marathon    284TTDP7202
20 HP, 1800 RPM, 460 Volts, DP, 284T, Rigid, Marathon, Y493
$3,262.63
Out of Stock
Dealers Electric-Marathon    286TTDP7217
20 HP, 1800 RPM, 460 Volts, DP, 286T, Rigid, Marathon, Y460
$4,454.62
Out of Stock
Dealers Electric-Marathon    286TTDP7251
20 HP, 1800 RPM, 460 Volts, DP, 286T, Rigid, Marathon, Y473
$4,949.61
Out of Stock
Dealers Electric-Marathon    160LTFC6538
20 HP, 1800 RPM, 230/460 Volts, TEFC, 160L, Rigid, Marathon, R337A
$2,772.00
Out of Stock
Dealers Electric-Marathon    256TTFCA6031
20 HP, 1800 RPM, 230/460 Volts, TEFC, 256JM, C-Face Rigid, Marathon, GT3125
$3,052.63
Out of Stock
Dealers Electric-Marathon    256TTFCA6033
20 HP, 1800 RPM, 575 Volts, TEFC, 256JM, C-Face Rigid, Marathon, GT3225
$3,052.63
Out of Stock
Dealers Electric-Marathon    256TTFL16041
20 HP, 1800 RPM, 200 Volts, TEFC, 256JM, C-Face Rigid, Marathon, U353B
$3,245.36
Out of Stock
Dealers Electric-Marathon    256TTFCA6037
20 HP, 1800 RPM, 230/460 Volts, TEFC, 256JP, C-Face Rigid, Marathon, GT3425
$3,052.63
Out of Stock
Dealers Electric-Marathon    256TTFCA6038
20 HP, 1800 RPM, 575 Volts, TEFC, 256JP, C-Face Rigid, Marathon, GT3525
$2,682.13
Out of Stock
Dealers Electric-Marathon    256THFNA19033
20 HP, 1800 RPM, 575 Volts, TEFC, 256T, Rigid, Marathon, W554
$2,283.78
Out of Stock
Dealers Electric-Marathon    256THFNA19056
20 HP, 1800 RPM, 460 Volts, TEFC, 256T, Rigid, Marathon, W553-P
$2,696.88
Out of Stock
Dealers Electric-Marathon    256THFNA9026
20 HP, 1800 RPM, 460 Volts, TEFC, 256T, Rigid, Marathon, W553
$2,551.20
Out of Stock
Dealers Electric-Marathon    256TTFC6027
20 HP, 1800 RPM, 208-230/460 Volts, TEFC, 256T, Rigid, Marathon, U652B
$3,402.62
Out of Stock
Dealers Electric-Marathon    256TTFC6031
20 HP, 1800 RPM, 575 Volts, TEFC, 256T, Rigid, Marathon, U653A
$1,936.30
Out of Stock
Dealers Electric-Marathon    256TTFCA6026
20 HP, 1800 RPM, 230/460 Volts, TEFC, 256T, Rigid, Marathon, GT1025
$2,319.87
Out of Stock
Dealers Electric-Marathon    256TTFCA6030
20 HP, 1800 RPM, 575 Volts, TEFC, 256T, Rigid, Marathon, GT1125
$2,151.58
Out of Stock
Dealers Electric-Marathon    256TTFL16033
20 HP, 1800 RPM, 230/460 Volts, TEFC, 256T, Rigid, Marathon, E2124
$2,328.04
Out of Stock

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