Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I have a dental lab in Europe and might want to move it to the USA. Some of the equipment rates as high as 4kW, and the the total maximum draw is 15kW for the whole lab. Can I wire a secondary breaker box in a building in the United States that is all 240V?

share|improve this question
Depending on the type of power service delivered to the building, you may not have 240v available to you. If the service is bi-phase, then 240v is possible. If the service is 3-phase, then you will get 208v. – longneck Apr 22 '13 at 20:32
@nvarras7 How did this work out? Did you relocate? – BrownRedHawk Jan 12 at 19:14

Yes. The bigger problem is going to be if any of the equipment requires 50 Hz or is not approved here (e.g., Commercial U.L. or whatever code and insurance requires for a dental lab).

share|improve this answer
Thank you for the response, none of the equipment says 50 or 60 Hz, that mean it's ok? all the equipment comes in US 110v versions if that helps, but buying them all again is about $400k too prohibitive. – nvarras7 Sep 12 '12 at 12:20
You can't assume that it's OK. You may have to look more carefully for small print, look for specifications in the manuals, or even ask the manufacturers. – Vebjorn Ljosa Sep 12 '12 at 12:31
I'd assume that no explicit specification would mean 50 Hz on European equipment. It's worth finding the datasheet. – sharptooth Sep 12 '12 at 12:41
@nvarras7 The equipment should have a nameplate with information like manufacturer, voltage, current, possibly Volt-Amperes, etc. It would likely be near where the electrical cable (cord) connects to the equipment (or possibly just inside a panel where the power connects). – Tester101 Sep 12 '12 at 13:03
Ok thanx to all for the answers, most of the machines documents list 50-60Hz, only one has 50 Hz on the plate, so I think I'm good! Now, can anyone lend a hand at moving time? Lol! – nvarras7 Sep 12 '12 at 14:03

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.