Understanding Variable Speed Drives (Part 2)

A thorough understanding of how to match the VFD to the driven load is the key to a successful application.When applied properly, the variable frequency drive (VFD) is the most effective motor controller in the industry today. Modern VFDs are affordable and reliable, have flexibility of control, and offer significant electrical energy savings through greatly reduced electric bills.

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Dwight Hartley (not verified)
on Dec 1, 2012

I need information for consideration of VFD usage at altitudes of 10000 ft..?? Thank you in advance for your assistance

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Arlington Gangable boxes

Designed for new or retrofit applications, these snap-together gangable plastic boxes eliminate the need to construct a multiple-gang steel box out of several individual ones. Starting with a two-gang box, users can build the box they need in seconds, according to the company. For three-gangs or more, separate the box parts, add the center sections needed to make a new, larger box, and then snap the pieces back together. The UL-listed product is preset for ½-in. wall finish thicknesses....More

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