ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Unusual Well Pump Switch Failure
by sabrown - 10/28/20 04:31 PM
Look at this mess...
by InspectorE - 10/27/20 09:09 PM
New tool
by gfretwell - 10/24/20 11:09 AM
Where is Everyone?
by Bill Addiss - 10/17/20 07:04 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
0 registered members (), 17 guests, and 21 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Rotary Phase Converter??? #45074 11/18/04 08:31 PM
Joined: Sep 2003
Posts: 35
A
acetoday Offline OP
Member
I need to install a rotary phase converter tomarrow and haven't had time to research as much as I had wanted. If anyone can help it would be greatly appreciated.

Here are the specs:

Runs 220V three phase equipment (In this case an ice cream maker) from a 220v single phase source. The motor is 3 H.P. I'll be installing it approx 30ft from main panel to a 3 phased disconnect then to the phase converter.

My question is what size wire should I use for the branch circuit conductors and what size breaker at the panel? I had already run #12 Romex assuming a single phase 220v load protected by a 2-pole 20. However, the customer got a good deal on a 3 phase ice cream maker. I'm not sure if #12 will still be OK.

Again, any comments would be greatly appreciated.

Work Gear for Electricians and the Trades
Re: Rotary Phase Converter??? #45075 11/18/04 10:10 PM
Joined: Mar 2002
Posts: 582
R
Ron Offline
Member
You will have to identify what the nameplate states for minimum circuit amps, and max breaker size, then work from there. If it says #12 is ok, then it's ok. It will probably have a 30 or 35A max breaker size.


Ron

Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
BEAMEUP
BEAMEUP
WA
Posts: 27
Joined: December 2004
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
271,051 Are you busy
205,040 Re: Forum
193,164 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3