Because 415/240V is a non standard supply voltage in North America you might have a hard time finding a panel with that voltage on the sticker. Just get a panel rated for either 480/277V or 600/347V with the correct current rating for your application. I suspect those panels will also ‘support’ your lower voltage setup.
If you don’t have an electrician hired yet look into it. They will save you money long term by ensuring everything is up to code and not going to start a fire. Plus they have connections to distributors that sell larger electrical equipment that is not always available to the average consumer.
I do have an electrician, but i'm buying all the parts myself.