I am currently testing one of these fs industrial switches.

https://www.amazon.com/MEAN-WELL-NDR-240-48-Industrial-Supply/dp/B015C9ITSS/ref=mp_s_a_1_3?crid=13N6D9XEIEB3Y&keywords=48vdc+din&qid=1687966375&sprefix=48vdc+din%2Caps%2C350&sr=8-3

I use one of these and works like a charm. Yes you can mount this up on the din as well or buy a 2,5 amps one for 120w poe which is smaller but if you can i would suggest these psus and wire it up.