News

A. (A) Individual Circuits [Sec. 422.10]. The branch-circuit ampere rating for an individual appliance isn’t permitted to be less than the branch-circuit rating marked on the appliance [Sec. 110.3(B)] ...
A typical low-voltage variable-frequency drive. Industrial facilities commonly use variable-frequency drives (VFDs) to control the speed at which alternating current motors operate. Let’s examine a ...