New Member Non-Professional Advise

[Eric Commarato]

I am a registered architect by profession, I am looking for some advice concerning electrical distribution in my home woodworking shop. Hopefully my question will be welcome in this forum. Some background first. I have a shop with many 220 and 220 three phase pieces of equipment. I run my three phase equipment with a rotary phase converter rated at 10 hp. The shop is serviced with at double pole 30 amp circuit. This circuit does a fine job running the rotary phase converter and my 5 horsepower Tannewitz tablesaw. Ocassionally the tablesaw will trip the breaker which is run from my residential service. I could put a larger 40 amp breaker in the panel, but my service wire is a 10awg. As I have read on this forum the NEC recommends a 10 awg for 30 amp breaker as a maximum. The saw trips the breaker while starting up. I was told by several of my engineers that I might be able to try a HACR breaker. These I understand are used in the HVAC industry. Can I do this? Is this a "code worthy" application for my problem, or should I just run a new service to the shop say 50 amp and maybe a sub panel? I am glad to be a member here and hope this questions is fitting for this forum. Any help is appreciated.

 

[George Stolz]

I am closing this thread, in accordance with the Forum rules. This Forum is intended to assist professional electricians, inspectors, engineers, and other members of the electrical industry in the performance of their job-related tasks. However, if you are not an electrician or an electrical contractor, then we are not permitted to help you perform your own electrical installation work.


If I have misjudged the situation, if for example this project is related to your work, then send me a Private Message. If you can show me that I am wrong, and that you are a licensed electrician (or at least a licensed apprentice), then I will reopen your post, and offer an apology for the delay and inconvenience.

A reminder to all members, if you see a questionable post, feel free to report it by clicking the

button at the top right corner of the post.