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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13385441351-Pfannenberg-Dealers Industrial    13385441351
Cooling Unit, Gray, NEMA 3R/4, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161
$4,038.81
Out of Stock
13385441355-Pfannenberg-Dealers Industrial    13385441355
Cooling Unit, Light Gray, NEMA 3R/4, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161
$4,101.36
Out of Stock
13385441375-Pfannenberg-Dealers Industrial    13385441375
Cooling Unit, Light Gray, NEMA 3R/4, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161 w/900W Htr
$4,201.78
Out of Stock
13385444158-Pfannenberg-Dealers Industrial    13385444158
Cooling Unit, Stainless, NEMA 4/4X, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3181
$4,329.50
Out of Stock
13385444159-Pfannenberg-Dealers Industrial    13385444159
Cooling Unit, Stainless, NEMA 4/4X, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3181
$5,363.55
Out of Stock
13385444178-Pfannenberg-Dealers Industrial    13385444178
Cooling Unit, Stainless, NEMA 4/4X, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3181 w/900W Htr
$4,681.85
Out of Stock
13385444179-Pfannenberg-Dealers Industrial    13385444179
Cooling Unit, Stainless, NEMA 4/4X, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3181 w/900W Htr
$5,803.99
Out of Stock
13385444251-Pfannenberg-Dealers Industrial    13385444251
Cooling Unit, Gray, NEMA 12, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3141
$3,337.26
Out of Stock
13385444255-Pfannenberg-Dealers Industrial    13385444255
Cooling Unit, Light Gray, NEMA 12, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3141
$3,181.21
Out of Stock
13385444351-Pfannenberg-Dealers Industrial    13385444351
Cooling Unit, Gray, NEMA 3R/4, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161
$4,246.99
Out of Stock
13385444355-Pfannenberg-Dealers Industrial    13385444355
Cooling Unit, Light Gray, NEMA 3R/4, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161
$4,044.97
Out of Stock
13385444375-Pfannenberg-Dealers Industrial    13385444375
Cooling Unit, Light Gray, NEMA 3R/4, 115 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161 w/900W Htr
$5,687.63
Out of Stock
13385636158-Pfannenberg-Dealers Industrial    13385636158
Cooling Unit, Stainless, NEMA 4/4X, 460 VAC, 5000-7000 Btu, Pfannenberg, DTS 3185 WC
$6,616.35
Out of Stock
13385736158-Pfannenberg-Dealers Industrial    13385736158
Cooling Unit, Stainless, NEMA 4/4X, 460 VAC, 7000-8500 Btu, Pfannenberg, DTS 3281
$6,443.60
Out of Stock
13385736159-Pfannenberg-Dealers Industrial    13385736159
Cooling Unit, Stainless, NEMA 4/4X, 115 VAC, 7000-8500 Btu, Pfannenberg, DTS 3281
$7,996.39
Out of Stock
13385736178-Pfannenberg-Dealers Industrial    13385736178
Cooling Unit, Stainless, NEMA 4/4X, 460 VAC, 7000-8500 Btu, Pfannenberg, DTS 3281 w/900W Htr
$6,804.76
Out of Stock
13385736179-Pfannenberg-Dealers Industrial    13385736179
Cooling Unit, Stainless, NEMA 4/4X, 460 VAC, 7000-8500 Btu, Pfannenberg, DTS 3281 w/900W Htr
$8,446.61
Out of Stock
13385736251-Pfannenberg-Dealers Industrial    13385736251
Cooling Unit, Gray, NEMA 12, 460 VAC, 7000-8500 Btu, Pfannenberg, DTS 3241
$3,988.60
Out of Stock
13385736255-Pfannenberg-Dealers Industrial    13385736255
Cooling Unit, Light Gray, NEMA 12, 460 VAC, 7000-8500 Btu, Pfannenberg, DTS 3241
$3,795.99
Out of Stock
13385736351-Pfannenberg-Dealers Industrial    13385736351
Cooling Unit, Gray, NEMA 3R/4, 460 VAC, 7000-8500 Btu, Pfannenberg, DTS 3261
$5,571.54
Out of Stock

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