If a motor isn't adequately protected, a short circuit will likely result in premature replacement. Then there's the problem of nuisance tripping upon initial start-up because the magnetic setting of ...

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 ...

Process automation projects are most often driven by bottom line results, return on investment and an appropriate value position or justification. More and more, systems are expected to: All of this ...

Telecom-equipment manufacturers typically have chosen magnetic circuit breakers rather than the less-costly thermal units in 48-V distribution panels because they offer higher voltage ratings and low ...

Self-protecting starters (SPSs) were first introduced to the U.S. in 1987. However, SPSs have been used internationally for several years. Recently, several manufacturers and private labelers have ...

I continue to be surprised by how many equipment designers are confused by UL circuit protection standards. In trying to meet conflicting standards, engineers may actually decrease the level of ...