[PSES] Branch and Supplementary Overload Protection

I have been looking at overload protection requirements for machinery, and I am a little unsure about application of branch protection versus supplementary protection. For example, suppose a machine is powered from AC mains (single phase or 3-phase, I don't think it matters). The power entry

Re: [PSES] Branch and Supplementary Overload Protection

Hi Jim, My comments below are focused on the USA. Will the machine be NRTL Listed as a whole? If not, then branch circuit rated devices will be required in the end installation. If so, then it will be the judgment of the NRTL that does the Listing evaluation. I would expect that they may require