xxj.electricxx
Member
What is the maximum amperage rating for a 14 awg conductor used as a start/stop remote control circuit to operate a motor?
14 AWG Maximum Amp rating
- Thread starter xxj.electricxx
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- Chapel Hill, NC
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- Retired Electrical Contractor
Why would the #14 amp change for that situation? If you are thinking because it is part of a rubber cord then T. 400.5(A) would probably take effect. There may be something else I don't know about..
dana1028
Senior Member
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- San Francisco Bay area
I think he's asking if this conductor is being used on a motor does his allowed amperage change [i.e. is he restricted by the 240.4 'small conductor' rule?].
If that is what is being asked, then - the 'small conductor' rule does not apply [so says 240.4(G)]....and you are allowed 20A on that conductor in a motor application.
If that is what is being asked, then - the 'small conductor' rule does not apply [so says 240.4(G)]....and you are allowed 20A on that conductor in a motor application.
Is the control circuit "tapped from the load side of a motor branch-circuit short-circuit and ground-fault protective device(s)?"
Or some other arrangement?
Check out 430.72 and Table 430.72(B).
If you need to use column A of Table 430.72(B) it will lead you to 310.15, which will lead you right back to Table 310.16 and a maximum of 15 amps protection.
I think.
Or some other arrangement?
Check out 430.72 and Table 430.72(B).
If you need to use column A of Table 430.72(B) it will lead you to 310.15, which will lead you right back to Table 310.16 and a maximum of 15 amps protection.
I think.
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