On 24 Mar, 18:51, BodgeIt wrote:
I have an electrical panel supplied with 415V, 3 phase and earth, no
neutral. *I need to have a 240v powered switch mode PSU installed *in
the same panel. Can it be done without a neutral?

Thanks

I suggest a 400/230 volt transformer to power the PSU. You may need to
earth one leg of the 230 volt output to provide a neutral depending on
the requirements of the PSU.