Converting a DC Switch to an Isolated DC Switch

[wirelesscon]

Is it possible to replace a DC Switch PSU with an Isolated PSU so that we can connect it safely to a -48 V power supply ...

can we get the isolated version of the PSU and install it to the switch .. as we want to install a DC switch to a site where -48V equipment and power supplies are running

( I dont care about my warranty on my switch ...) can we get our hands on an Isolated DC power supply to retrofit / replace the Non Isiolated DC PSU on a WS-26-500-DC and replace it with a 400W IDC (making it effectively a WS-26-400-IDC
Thanks

Tom smyth