DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (
-   Electrical (
-   -   Circuit capacity (

jonjo 10-30-2006 08:34 PM

Circuit capacity
What is the rule of thumb for determining how many wall outlets you can safely put on a new 15a breaker or 20a breaker?
Assume that these will be used for lighting and not kitchen appliances or other "equipment".
In other words, how many watts should you calculate for each outlet when figuring breaker load capacity?

mdshunk 10-30-2006 08:54 PM

For residential work, there is no limit. For commercial work, you calculate 180VA per duplex. You can use that if you feel you must.

joed 10-31-2006 04:19 PM

In Canada the limit is 12 not matter if it is 15 or 20 amp circuit.

AlbrightPM 10-31-2006 09:00 PM

I was always told it was (7) 20A recept's per 20A breaker. I don't think its a code issue for residential, but most commercial applications have a limit.

I always be sure that the kitchen is well powered (multiple circuits) as well as a home office or den (computers, home entertainment, etc).


mdshunk 11-01-2006 04:07 PM


Originally Posted by AlbrightPM (Post 22446)
I was always told it was (7) 20A recept's per 20A breaker.

Never believe what someone told you. I'm pretty sure ever bedroom in my house combined has a total receptacle load of maybe 2 amps, and there's probably 30 receptacles in total.

All times are GMT -5. The time now is 05:31 AM.

User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.

Search Engine Friendly URLs by vBSEO 3.6.1