Soldered is good
Paul
Ha, l like soldered on lugs, but people don't use them. Personal l hate ferules, ok they might make sure all conductors go under the screw, but a lot of them when pulled on come out of the ferrule, particular when an incorrect type crimp tool is used.
Regards
Kevin
We have regulations that forbid using soldered wire termination in certain industries for the power cables. I believe you can guess what happens with the tin if due to vibration or any other reason wire gets just a little bit loose?
Won't you get additional heat? Won't the tin melt?
I would never use it for more than 12-24V.
Schneider says screw terminal AWG14 to AWG12.
If AWG12 fits why doesn't AWG14 with ferrules fit?
Sounds like something is wrong here.
VFD mfrs likely say this on the drive installation instructions as well, so if the drive says that, then the panel builder must pass that info on in their instructions, and THAT would indeed be part of their UL508A procedure.
UL makes no such distinction.
But the NEC has rules that make it very difficult to use anything smaller than 14ga wire for field wiring of power circuits, regardless of voltage. Control circuits, no problem, but power circuits require special attention in terms of protection and for the load conductors coming from a VFD that becomes a hassle for the panel builder, so it's a lot easier to just say no smaller than 14ga.
VFD mfrs likely say this on the drive installation instructions as well, so if the drive says that, then the panel builder must pass that info on in their instructions, and THAT would indeed be part of their UL508A procedure.