ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Photocell
by Docholiday. 01/22/18 10:52 AM
AreMetal Ladders Ever OK For Electrical Work?
by gfretwell. 01/22/18 01:15 AM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
1 registered members (brsele), 29 guests, and 14 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Good idea or not? 200 amp with 100 amp main #5245
11/11/01 01:13 AM
11/11/01 01:13 AM
R
rayh78  Offline OP
Member
Joined: Nov 2001
Posts: 23
Cant find any info on this. Sometimes have to replace an old 100 amp fuse box in rental property. Can we use a new 200 amp panel box, but replace the 200 amp main breaker with a 100 amp breaker? ( murray seems to be the only brand where the 100 amp breaker will fit in the same space as the original 200 amp breaker) This would save work if we need to upgrade to 200 amp service in the future. If small home with gas heat 100 amp seems to be fine. Main concern is fire and safety. Appreciate any and all suggestions. Thanks

Work Gear for Electricians and the Trades
Re: Good idea or not? 200 amp with 100 amp main #5246
11/11/01 08:10 AM
11/11/01 08:10 AM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,344
I have done this with a 200 A MLO, 100 A meter/main combo, just for space. I would call Murray tech support as to the replacement of a main breaker.

Re: Good idea or not? 200 amp with 100 amp main #5247
11/11/01 10:29 PM
11/11/01 10:29 PM
R
rayh78  Offline OP
Member
Joined: Nov 2001
Posts: 23
Any ideas on the best brand panel except the square D. Or if the main breker was not interchangeable 200 amp to 110 amp on a certian brand then would it work if we kept the 200 amp factory installed main in the panel and then just feed the panel with a cheap 100 amp outdoor disconnect. then the 200 amp main would be used only to allow current to flow thru.
thanks

Re: Good idea or not? 200 amp with 100 amp main #5248
11/12/01 07:39 AM
11/12/01 07:39 AM
C
C.Urch  Offline
Member
Joined: May 2001
Posts: 36
Kill Devil Hills, NC USA
I'm curious...Why not just make the service 200 amp from the get go? I can buy a ITE 30/40 200 amp main breaker panel for $10.00 more than a main lug only. You know the 200 amp breaker costs more than $10.00 but it is a "supply and demand" consideration from the manufacturers point of view. They make so many more main breaker panels than main lug ones so the price drops for the former.

Re: Good idea or not? 200 amp with 100 amp main #5249
11/12/01 01:00 PM
11/12/01 01:00 PM
C
Cindy  Offline
Member
Joined: Jun 2001
Posts: 196
PDX, OR, US
Don't want to change the service conductors I'm assuming. What about a 100A backfed breaker, then switch to using the 200A main later with new svc conductors if needed?

Re: Good idea or not? 200 amp with 100 amp main #5250
11/17/01 03:28 PM
11/17/01 03:28 PM
R
rayh78  Offline OP
Member
Joined: Nov 2001
Posts: 23
Trying to do this without replaceing main service line, but still use a 200 amp main breaker box. Not to sure what the 100 amp backfeed breaker is. Would it be a good idea to just use a 100 amp disconnect beside the meter and feed that to the 200 amp main indoor panel with the 200 amp main breaker.
Then if we needed in the future to go to 200 amp it would be easy.

thanks for all replys

Re: Good idea or not? 200 amp with 100 amp main #5251
11/17/01 03:36 PM
11/17/01 03:36 PM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,344
oh i see, well then, if you can fuse the service conductors with a disco you've probably licked this economically.
An indoor 100A disco would be cheaper i would think.
It could be used as feeder protection after the rest of the service is upgraded.


Featured:

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

 

Member Spotlight
CDS
CDS
Nicholson Ga
Posts: 34
Joined: June 2006
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
Potseal 15
sparky 15
Popular Topics(Views)
243,595 Are you busy
180,393 Re: Forum
170,862 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.021s Queries: 14 (0.004s) Memory: 0.9822 MB (Peak: 1.1343 MB) Zlib enabled. Server Time: 2018-01-22 19:36:39 UTC