Subsection 21 “Location in Circuit” is by far the longest subsection in Art. 210 of the NEC. At nearly two and a half pages, it occupies about 85% of Part II. Of the remaining text, half a page ...

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].

Revolutionary vacuum fault interrupter technology enhances uptime, safety, and remote management for high-density power infrastructures ATLANTA, Aug. 4, 2025 /PRNewswire/ -- Power and Data Management ...