Looking closely at the photo of the power supply in the article, it looks like it's quite flexible and can handle different voltages, as long as they're 3-phase

Looking closely at the photo of the power supply in the article, it looks like it's quite flexible and can handle different voltages, as long as they're 3-phase. It even lists different amp draws for the different voltage levels. In addition, it looks like it can handle 380-570V DC. With today's switching power supply technology, it's not hard to make them able to accept widely differing input voltages, so this is commonly done so you only need one part to cover the entire worldwide market. It looks to me like you can just plug this thing into any 3-phase power you want really. As for a "standard configuration" in the US, there really isn't such a thing for 3-phase power. There are a few NEMA standards used in industrial applications, but a lot of times, things like that are hard-wired. This isn't a home appliance.