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 ...

Generally, the Art. 210 requirements for branch circuits are prerequisites for applying requirements found elsewhere. This fact is exemplified by the overcurrent protection requirements [Sec. 210.20].

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 ...

Said to be ideal for applications requiring branch circuit protection that comply with UL and CSA standards, the Bulletin 1492-MC circuit breakers may be used to protect wiring and associated ...

The new line of Allen-Bradley Bulletin 1492-MC circuit breakers meet North American electrical standards and conserve panel space to provide advanced branch circuit protection. The 1492-MC circuit ...

A new type of device provides designers of automated installations for North America with performance, cost, and safety benefits. Industrial machinery and equipment system designs typically rely on ...

Phoenix Contact now offers a new line of UL 489 Listed circuit breakers – the TMC 8 series. A trip-free design increases safety against closing during an overcurrent event, while the snap-action ...