240.4(D) does apply, it points to 240.4(G)
240.4(D) does apply, it points to 240.4(G)
infinity said:
You are required to use the information on the nameplate if available. You're correct that the MCA is used to size the conductors. I would add that 240.4(D) does not apply to this installation so you possibly could use #14 on a 20 amp MCA and #12 on a 25 amp MCA, etc. Also the MOP can be sized anywhere between the MCA and the MOP. However, if you sized the short circuit and ground fault protection for the MCA the unit might trip on start up.
Hmmm. I would say that 240.4(D) does apply. It's just that, within 240.4(D), there is the following statement:
Unless specifically permitted in 240.4(E) or 240.4(G), the overcurrent shall not exceed...
240.4(E) is for tap conductors
240.4(G) is the section that includes packaged equipment like A/C units.
Eric
Now how do i get those cute little icons to appear by the text? When i click on one it goes up by the subject line