ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by gfretwell - 03/28/24 12:43 AM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
1 members (Scott35), 255 guests, and 15 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Jun 2007
Posts: 17
E
etech Offline OP
Member
Need to install 3 480v single phase parking lot circuits on contactor. Can I get by with a 3 pole or do I need to go with a 6 pole? Must I break both conductors?

Joined: Jan 2003
Posts: 4,391
I
Moderator
Originally Posted by etech
Need to install 3 480v single phase parking lot circuits on contactor. Can I get by with a 3 pole or do I need to go with a 6 pole? Must I break both conductors?


In my opinion 410.54(B) requires you to switch all ungrounded legs supplying the 'auxiliary equipment' (AKA the ballasts).


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Joined: Jun 2007
Posts: 17
E
etech Offline OP
Member
Thanks!


Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5