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 »
The WEG MPW Series Manual Motor Protectors provide a very compact solution for operation and protection in motor control applications. The NEC requires four functions to be considered a combination motor starter: Motor Disconnect, Branch Circuit Protection, Motor Controller and Motor Overload Protection. The WEG MPW meets all of these requirements, and the requirements of UL for Self-Protected Motor Controllers to be used in Type-E & F applications. With worldwide approvals the WEG MPW can be used in a variety of applications all over the world.
MPW40 - Product Selection
Suitable for manual motor controller, group installation, tap conductor and combination starters* Type E & Type F
Built-in protection: disconnect means, short-circuit protection, motor control and overload protection
Short-circuit interrupting capacity up to 50kA@480Vac (25kA@600Vac)
Fixed short-circuit release 13 x Iu
Phase loss sensitivity
Ambient temperature compensation -4…+140ºF (-20…+60ºC)
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