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    145TTDR6126
1.5 HP, 1800 RPM, 230/460 Volts, DP, 145T, Rigid, Marathon, U420A
$713.78
Dealers Electric-Marathon    145TTDR6127
1.5 HP, 1800 RPM, 230/460 Volts, DP, 145T, Rigid, Marathon, U421A
$739.85
Out of Stock
Dealers Electric-Marathon    5K49RN8424
1.5 HP, 1725 RPM, 208-230/460 Volts, DP, 145TC, N/R, Marathon, K622
$445.76
Out of Stock
Dealers Electric-Marathon    056T17D5329
1.5 HP, 1800 RPM, 208-230/460 Volts, DP, 56, Resilient Base, Marathon, G122
$391.16
Dealers Electric-Marathon    056T17D5348
1.5 HP, 1800 RPM, 208-230/460 Volts, DP, 56, Resilient Base, Marathon, G143
$462.00
Dealers Electric-Marathon    056T17D5357
1.5 HP, 1800 RPM, 575 Volts, DP, 56, Resilient Base, Marathon, G965
$392.29
Out of Stock
Dealers Electric-Marathon    5K49PN4120
1.5 HP, 1725 RPM, 208-230/460 Volts, DP, 56C, N/R, Marathon, K521
$391.06
Out of Stock
Dealers Electric-Marathon    056T17D5309
1.5 HP, 1800 RPM, 208-230/460 Volts, DP, 56H, Rigid, Marathon, K022
$378.18
Out of Stock
Dealers Electric-Marathon    056T17D5344
1.5 HP, 1800 RPM, 208-230/460 Volts, DP, 56H, Rigid, Marathon, G923
$401.25
Out of Stock
Dealers Electric-Marathon    056T17D5369
1.5 HP, 1800 RPM, 575 Volts, 3 PH, ODP, 56H, 575 VOLT, Marathon, 056T17D5369
$338.75
Out of Stock
Dealers Electric-Marathon    5K48UN3056
1.5 HP, 1725/1140 RPM, 200-230 Volts, DP, 56H, RB, Marathon, K520
$509.65
Out of Stock
Dealers Electric-Marathon    5K48UN3057
1.5 HP, 1725/1140 RPM, 460 Volts, DP, 56H, RB, Marathon, K549
$509.65
Out of Stock
Dealers Electric-Marathon    5K49PN4088X
1.5 HP, 1725 RPM, 200-230/460 Volts, DP, 56H, RB, Marathon, K1415
$497.77
Dealers Electric-Marathon    5K49RN4617
1.5 HP, 1725 RPM, 208-230/460 Volts, DP, 56HC, WB, Marathon, K646
$415.47
Out of Stock
Dealers Electric-Marathon    056T17D3302
1.5 HP, 1800 RPM, 208-230/460 Volts, DP, 56HZ, Rigid, Marathon, K064
$419.45
Out of Stock
Dealers Electric-Marathon    056T17D3306
1.5 HP, 1800 RPM, 208-230/460 Volts, DP, 56HZ, Rigid, Marathon, K068
$478.72
Out of Stock
Dealers Electric-Marathon    5K49PN4121
1.5 HP, 1725 RPM, 208-230/460 Volts, DP, 56J, N/R, Marathon, K751
$553.99
Out of Stock
Dealers Electric-Marathon    143TTWD16032
1.5 HP, 1800 RPM, 230/460 Volts, TEFC, 143TC, C-Face Rigid, Marathon, N766
$1,138.84
Out of Stock
Dealers Electric-Marathon    143TTWD16033
1.5 HP, 1800 RPM, 230/460 Volts, TEFC, 143TC, C-Face Footless, Marathon, N716
$1,134.07
Out of Stock
Dealers Electric-Marathon    145TTFR16036
1.5 HP, 1800 RPM, 230/460 Volts, TEFC, 145JM, C-Face Rigid, Marathon, GT3104
$823.15

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