Re: Need control cabinet help.
For the Dyne4, the reason they spec a 50 amp breaker on single phase is to handle the inrush current when the drive is energized. The inrush gets pretty high. A 20 Amp D curve might work. I am running four Dyne4s with 1.8KW motors and I have them coming off of a common 50 Amp breaker, and then to individual 30 Amp C curve breakers for each drive. I programatically energize the contactors one at a time with a 500ms delay between them. That way the combined inrush doesn't overload the system. I would go with a much higher rated contactor for the same reason, it sucks to weld the contacts. I'm using 32 Amp contactors on my 3 phase powered Dyne4s. I would use DMM Techs guidelines at a minimum on the contactors.
I would concider this contactor https://www.automationdirect.com/adc.../SC-E2SG-24VDC or at a minimum one of these https://www.automationdirect.com/adc...AD-PR40-2A-24D
I assume the fuse holders are for the 1 Amp control power fuses. Your spec is a bit overkill for that. Here is what I used, https://www.automationdirect.com/adc...ocks/KN-F10-10
Your power supply hardware specs seem OK.
Jim Dawson
Sandy, Oregon, USA