Power Entry module (Twin fused?)

[Champ81]

Hi all,

I was looking for a power entry module from digikey. There are fused PEMs which I was looking for to fit the chassis cutout.  There are ones with one fuse in the drawer. Now I see ones with "twin fuses" so the drawer in fact needs two. Any benefit or less benefit to using two vs one anyone know of?  There is definitely a reason to incorporate twin fuses of course which is why they manufacture them. But not sure why.

My thoughts process was that if there was a power surge any one of the terminals other than ground would blow one or both fuses. I heard they use these on medical equipment. But just curious if these would either be redundant, have more safety or less safety.

Here is one I see on digikey.

https://www.digikey.ca/en/products/detai...100/641415

Thanks.