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    056A11O5315
1.5 HP, 1075 RPM, 200-230/460 Volts, OPAO, 56Z, Belly Band, Footless, Marathon, X449
$387.85
Out of Stock
Dealers Electric-Marathon    5KCP39UNB767T
1.5 HP, 1075 RPM, 200-230/460 Volts, OPEN, 48Y, N/R, Marathon, P197
$442.40
Out of Stock
Dealers Electric-Marathon    5KCP39UNB764T
1.5 HP, 1075 RPM, 575 Volts, OPEN, 48Z, N/R, Marathon, P198
$348.91
Dealers Electric-Marathon    145TCDR5328
1.5 HP, 1800 RPM, 115/208-230 Volts, DP, 145JM, C-Face Rigid, Marathon, Z403
$644.88
Out of Stock
Dealers Electric-Marathon    145TCDR5329
1.5 HP, 1800 RPM, 115/208-230 Volts, DP, 145JP, C-Face Rigid, Marathon, Z422
$644.88
Out of Stock
Dealers Electric-Marathon    145TCDR5331
1.5 HP, 1800 RPM, 115/208-230 Volts, DP, 145T, Resilient Base, Marathon, I146
$384.66
Out of Stock
Dealers Electric-Marathon    5KCR49SN0065
1.5 HP, 1725 RPM, 115/208-230 Volts, DP, 145T, WB, Marathon, C191
$562.17
Out of Stock
Dealers Electric-Marathon    056C17D5311
1.5 HP, 1800 RPM, 115/208-230 Volts, DP, 56C, C-Face Footless, Marathon, G270
$496.96
Out of Stock
056B17DRR70022A1-Marathon-Dealers Industrial    056B17DRR70022A1
1.5 HP, 1800 RPM, 115/208-230 Volts, ODP, 56H, -, Marathon, C186A
$597.52
Dealers Electric-Marathon    056C17D5308
1.5 HP, 1800 RPM, 115/208-230 Volts, DP, 56H, Rigid, Marathon, G951
$448.79
Dealers Electric-Marathon    056C17D5347
1.5 HP, 1800 RPM, 115/208-230 Volts, DP, 56H, Resilient Base, Extended Studs, Marathon, B336
$597.48
Dealers Electric-Marathon    5KCR49SN0012X
1.5 HP, 1725 RPM, 115/208-230 Volts, DP, 56H, RB, Marathon, CG239
$577.72
Dealers Electric-Marathon    5KCR49SN0068
1.5 HP, 1725 RPM, 115/208-230 Volts, DP, 56H, WB, Marathon, C185
$474.85
Out of Stock
Dealers Electric-Marathon    5KCR49SN0068X
1.5 HP, 1725 RPM, 115/208-230 Volts, DP, 56H, WB, Marathon, C186
$493.45
Out of Stock
Dealers Electric-Marathon    5KCR49SN0150X
1.5 HP, 1725 RPM, 115/208-230 Volts, DP, 56H, RB, Marathon, C1160
$504.68
Dealers Electric-Marathon    145TBFR5327
1.5 HP, 1800 RPM, 115/208-230 Volts, TEFC, 145T, Rigid, Marathon, I201
$688.85
Dealers Electric-Marathon    145TBFR5328
1.5 HP, 1800 RPM, 115/208-230 Volts, TEFC, 145T, Rigid, Marathon, Z118
$488.82
Dealers Electric-Marathon    145TCWR5326
1.5 HP, 1800 RPM, 115/208-230 Volts, TEFC, 145T, Rigid, Marathon, N683
$690.47
Out of Stock
Dealers Electric-Marathon    5KCR48WN0292
1.5 HP, 1725 RPM, 115/208-230 Volts, TEFC, 145T, WB, Marathon, C297
$611.01
Out of Stock
Dealers Electric-Marathon    5KCR48WN0292Y
1.5 HP, 1725 RPM, 115/208-230 Volts, TEFC, 145T, WB, Marathon, F15E1
$553.50
Out of Stock

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