Approved Conductor Sizes for ITC Type Cable

The conductors contained within Type ITC cable shall be rated 300V, and not smaller than _____ AWG nor larger than _____ AWG.

a) 22, 12
b) 18, 10
c) 16, 8
d) 14, 1/0

See answer and applicable Code reference

The correct answer is: a) 22, 12

Article 727 covers the use, installation and construction specifications of instrument tray cable for application to instrumentation and control circuits operating at 150V or less and 5A or less. In addition, as noted in Sec. 727.6, "The insulated conductors of Type ITC cable shall be in sizes 22 AWG through 12 AWG."


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