How do you wire a spa with 240v?

Answer 1

Very carefully. And in accordance with all the National Electrical Codes, as well as within the requirements set forth in all the building codes of the location where the spa is situated. Wiring a spa is generally not a job for a homeowner, or even for a lot of handymen. Failure to wire anything correctly can lead to a fire. Fires damage property. And they kill people. The operative word is liability. Whoever does this kind of work (electrical wiring) for money has (or should have) liability insurance. And these practitioners have a good deal of knowledge, skill and experience specific to the task at hand. Just as an aside, a lot of spa companies install the units, but subcontract the electrical to avoid liability or the extra costs of having an in-house electrician. If you're sincere and have a fundamental knowledge of house wiring, a place to start might be a book on house wiring. We still have libraries. And there are a lot of really good new and used book stores, many of which can be accessed online, just like the sites that sell just about anything (ebay.com) and the big commercial sites (Amazon.com). If no lights come on when looking at reference materials that cover wiring, that's probably a good place to stop and call a professional. Most of them give free estimates. Ask around for the name of a good handyman or home electrical contractor or shop on the web for pros in your area. Lastly, if I cut myself, I wash the cut and put on a band aid. If I break my leg, I go to the doctor (or emergency room physician) for treatment. Never sell the skilled professional short. They are experts. What is the price of peace of mind? Be smart. Be safe. Best of luck.