ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Burning out of return(white) side of 120volt rec
by crselectric. 06/14/19 02:15 AM
Video door bell causing chime activation of coil
by JoeTestingEngr. 06/13/19 12:43 PM
Troubleshooting Voltage Drop Across Relay
by gfretwell. 06/09/19 11:49 AM
Apple Recalls Three-Prong Wall Plug Adapters
by Admin. 06/05/19 09:06 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 15 guests, and 17 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
main lug or breaker for Sub Panel? #50436
04/01/05 10:35 PM
04/01/05 10:35 PM
E
Electric Ian  Offline OP
Member
Joined: Feb 2004
Posts: 133
MA, USA
I am installing a sub panel in an attic space to be finished. It will be fed from a 60A breaker in the main panel in the basement. Would you typically use a main lug panel or main breaker panel for the sub in this situation ?

Work Gear for Electricians and the Trades
Re: main lug or breaker for Sub Panel? #50437
04/02/05 12:03 AM
04/02/05 12:03 AM
D
Dave55  Offline
Member
Joined: May 2004
Posts: 697
Crystal Lake, Illinois, USA
I almost always use main breaker panels for sub-panels. I consider it an additional disconnect and haven't had any complaints from inspectors yet.

Dave

Re: main lug or breaker for Sub Panel? #50438
04/02/05 02:49 PM
04/02/05 02:49 PM
J
Joey D  Offline
Member
Joined: Oct 2003
Posts: 259
Arlington MA U.S.
Most main breaker panels come with the neutral bar bonded to the ground bar or just have 2 neutral bars bonded together. This would need to be seperate in a sub panel use

Re: main lug or breaker for Sub Panel? #50439
04/02/05 04:05 PM
04/02/05 04:05 PM
B
BobH  Offline
Member
Joined: Oct 2004
Posts: 135
Newfane, N.Y USA
You should be able to do it either way as long as grounded conductor is isolated from grounding conductor and you use a 4 wire feeder.

Re: main lug or breaker for Sub Panel? #50440
04/02/05 06:55 PM
04/02/05 06:55 PM
N
northstar  Offline
Member
Joined: Mar 2005
Posts: 42
Long Island, New York
Im for the Main breaker panel with an Isolated nutreal bar. The added disconnect and protection could only be a good thing. However, the more economical way to go is the main lug which has an iso bar already in it.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Radar
Radar
Los Angeles, CA
Posts: 349
Joined: April 2004
Show All Member Profiles 
Top Posters(30 Days)
Khombo 2
Popular Topics(Views)
255,717 Are you busy
191,688 Re: Forum
181,470 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.018s Queries: 14 (0.004s) Memory: 0.9674 MB (Peak: 1.1050 MB) Zlib enabled. Server Time: 2019-06-17 17:40:22 UTC