I suggest the Voltage Rating of the VDR (Varistor) be 300VAC.
275VAC rating is a little bit lower.
The EMI block (Siemens) is very good if you can fit it in to yr System (PC
or any other system). You can find some (not many) vendor selling
AC Receptacles (with this EMI Filter ckt inside). These EMI-Filter
Receptacles are very (and repeat very) expensive.
Many PSU vendors choose to fit some of the parts (of the EMI ckt) on the
Mainboard (of the PSU) and some of the parts on the AC Receptacle.
You can see this inside the PSU. |