"Fredxx" wrote in message
...
On 07/04/2021 21:42, ARW wrote:
Am I correct in saying that it does not matter if there is a LN reversal
on the input?

It will always have a correct +/- DC voltage.

The DC voltage across the capacitor will be the same,

Yes.

the difference: one way it will be referenced to neutral, ie close to
ground, and the other will have 230V superimposed on the capacitor
terminals.

Nope, even with a device with no earth connection.

If an electrolytic capacitor then diode polarity will be very important.

What are you trying to do?