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taxidriver

04:23PM | 09/03/07
Member Since: 09/02/07
3 lifetime posts
Bvelectrical
How many circuit breakers can I install on a 100 Amp panel?

I looked at mine today and realized that the ones that are there added up to 315 maps even though the main was only 100amps.

Is this aloud (having the ones under the 100 amp add up to more that it)?

If so what is the most amount of amps that I can have for a 100 amp panel?

Why I am asking is because I want to install 4500W worth of baseboard heater (240V) and want to know if I can add it with two more 15 mp breakers.

Any help would be appreciated

Billhart

04:53PM | 09/03/07
Member Since: 04/25/05
1915 lifetime posts
Code realizes that every light is not going to on at the same time and every receptacle is not going to loaded to the max everytime, even with teenagers.

Here are the calculation.

http://www.taunton.com/finehomebuilding/pages/bh0019.asp

Note, for a few things they give specific loading for the appliance. But in most cases you use the actual nameplate data and not the size of the circuit.

taxidriver

06:40PM | 09/03/07
Member Since: 09/02/07
3 lifetime posts
I do not sse where i can enter the information to figure out if i have more space for a hew heaters.

Billhart

03:36AM | 09/04/07
Member Since: 04/25/05
1915 lifetime posts
Click where is says.

View as PDF

http://www.taunton.com/finehomebuilding/PDF/Free/Service_Feeder_Calculations.pdf
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