When connected to PMDX boards, limit/home switches are switching voltages in the 5 to 12VDC range (mostly 5VDC), at current in the maybe 10's of milli-amp range. So look for the DC rating of the switches, not the AC rating. But pretty much any switch should do.
I've heard stories about heavy duty switches rated for many amps at AC or DC voltages having reliability issues at low DC voltages and currents because the switches rely on a bit a arcing when the contacts make and break contact in order to clean off any corrosion on the contacts. And at low currents there isn't any (or enough) arcing to clean to contacts. I cannot say how "real" this phenomena is, or how big of an effect it is, or how much current rating qualifies as "heavy duty". Or whether it is just an old machinists tale the guys in suspenders tell the younger folks :)