Today, 80% of all input/output (I/O) devices in automation applications are supplied with 24VDC power. The second most popular voltage is 120VAC, which is used on 15% of all I/Os. Over the past decade ...
How you should treat the neutral conductor depends on your system design. Neutral conductors must be grounded to prevent inadvertent potentials on conductive surfaces of equipment, enclosures and ...
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