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 »

UPS Shipping Upgrade Program

For eligible items purchased online only...
Select UPS Ground shipping at checkout and we will upgrade you to UPS Second Day Air for no additional cost.
Select UPS Second Day Air shipping at checkout and we will upgrade you to UPS Next Day Air for no additional cost.

Notes and restrictions:  

  • The upgrade does not appear at checkout or in the order confirmation email.
  • The order must include only eligible items.  If non eligible items are included in the order the entire order will not be upgraded and will ship using the selected shipping method.  
  • If you want Second Day Air at the Ground price, you must select Ground at Checkout. Likewise if you want Next Day Air at the Second Day Air price you must select Second Day Air at checkout. The shopping cart will charge you for the service you select. We cannot refund the charge once your order is placed.  
  • If the shipping address is a UPS advertised 1 day point from the warehouse by UPS Ground, Dealers may at our option ship via UPS Ground instead of the upgraded option. In these circumstances, the package should arrive the next day via UPS Ground.
  • Applies only to orders shipped within the United States.
  • This is a complimentary service and the upgrade is not guaranteed.