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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13383141251-Pfannenberg-Dealers Industrial    13383141251
Cooling Unit, Gray, NEMA 12, 230 VAC, 900-1300 Btu, Pfannenberg, DTS 3021
$2,778.53
Out of Stock
13383141255-Pfannenberg-Dealers Industrial    13383141255
Cooling Unit, Light Gray, NEMA 12, 230 VAC, 900-1300 Btu, Pfannenberg, DTS 3021
$2,642.63
Out of Stock
13383141351-Pfannenberg-Dealers Industrial    13383141351
Cooling Unit, Gray, NEMA 3R/4, 230 VAC, 900-1300 Btu, Pfannenberg, DTS 3031
$3,246.66
Out of Stock
13383141355-Pfannenberg-Dealers Industrial    13383141355
Cooling Unit, Light Gray, NEMA 3R/4, 230 VAC, 900-1300 Btu, Pfannenberg, DTS 3031
$3,090.61
Out of Stock
13383144158-Pfannenberg-Dealers Industrial    13383144158
Cooling Unit, Stainless, NEMA 4/4X, 115 VAC, 900-1300 Btu, Pfannenberg, DTS 3031SS
$3,216.46
Out of Stock
13383144159-Pfannenberg-Dealers Industrial    13383144159
Cooling Unit, Stainless, NEMA 4/4X, 115 VAC, 900-1300 Btu, Pfannenberg, DTS 3031
$3,716.64
Out of Stock
13383144251-Pfannenberg-Dealers Industrial    13383144251
Cooling Unit, Gray, NEMA 12, 115 VAC, 900-1300 Btu, Pfannenberg, DTS 3021
$2,718.13
Out of Stock
13383144255-Pfannenberg-Dealers Industrial    13383144255
Cooling Unit, Light Gray, NEMA 12, 115 VAC, 900-1300 Btu, Pfannenberg, DTS 3021
$2,592.29
Out of Stock
13383144351-Pfannenberg-Dealers Industrial    13383144351
Cooling Unit, Gray, NEMA 3R/4, 115 VAC, 900-1300 Btu, Pfannenberg, DTS 3031
$3,191.29
Out of Stock
13383144355-Pfannenberg-Dealers Industrial    13383144355
Cooling Unit, Light Gray, NEMA 3R/4, 115 VAC, 900-1300 Btu, Pfannenberg, DTS 3031
$3,040.27
Out of Stock
13383436158-Pfannenberg-Dealers Industrial    13383436158
Cooling Unit, Stainless, NEMA 4/4X, 460 VAC, 3000-4000 Btu, Pfannenberg, DTS 3181 SL
$4,690.66
Out of Stock
13383436251-Pfannenberg-Dealers Industrial    13383436251
Cooling Unit, Gray, NEMA 12, 460 VAC, 3000-4000 Btu, Pfannenberg, DTS 3141 SL
$3,514.11
Out of Stock
13383436255-Pfannenberg-Dealers Industrial    13383436255
Cooling Unit, Light Gray, NEMA 12, 460 VAC, 3000-4000 Btu, Pfannenberg, DTS 3141 SL
$3,588.94
Out of Stock
13383436351-Pfannenberg-Dealers Industrial    13383436351
Cooling Unit, Gray, NEMA 3R/4, 460 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161 SL
$4,364.74
Out of Stock
13383436355-Pfannenberg-Dealers Industrial    13383436355
Cooling Unit, Light Gray, NEMA 3R/4, 460 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161 SL
$4,153.33
Out of Stock
13383441158-Pfannenberg-Dealers Industrial    13383441158
Cooling Unit, Stainless, NEMA 4/4X, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3181 SL
$4,589.36
Out of Stock
13383441251-Pfannenberg-Dealers Industrial    13383441251
Cooling Unit, Gray, NEMA 12, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3141 SL
$3,649.34
Out of Stock
13383441255-Pfannenberg-Dealers Industrial    13383441255
Cooling Unit, Light Gray, NEMA 12, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3141 SL
$3,473.17
Out of Stock
13383441351-Pfannenberg-Dealers Industrial    13383441351
Cooling Unit, Gray, NEMA 3R/4, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161 SL
$4,600.13
Out of Stock
13383441355-Pfannenberg-Dealers Industrial    13383441355
Cooling Unit, Light Gray, NEMA 3R/4, 230 VAC, 3000-4000 Btu, Pfannenberg, DTS 3161 SL
$4,056.43
Out of Stock

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