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milkweed
load balancing on a residential service panel

Reading a book from the library about wiring a residential house.
In the section on service panels it talks about load balancing to keep the heat that the panel emits to a minimum.

We have 240 volt electric baseboard heaters in our house. Based on how the legs of the service panel zigzag, does this mean that the two adjacent 20 amp breakers that protect one of these circuits are load balanced?

If so, then does the load balancing consideration only apply to the sum of 120 volt circuits?

Re: load balancing on a residential service panel

Milkweed, if you have a typical 120/240V panel you generally don't have to worry about load balancing.

All 240V loads are automatically balanced.

If you see all your single pole (120V) breakers side by side and don't have a lot of portable heaters or window air conditioners you should not be concerned.

milkweed
Re: load balancing on a residential service panel
The Semi-Retired Electric wrote:

Milkweed, if you have a typical 120/240V panel you generally don't have to worry about load balancing.
All 240V loads are automatically balanced.
If you see all your single pole (120V) breakers side by side and don't have a lot of portable heaters or window air conditioners you should not be concerned.

Sorry for resurrecting this thread, but I have a follow on question.
Recently we decided we want to add a mini-split.
As I mentioned before we have 240 volt service, and the unit we are looking at requires 240v.
Our service panel has two empty slots remaining, one at the bottom of either side of the panel.
Does the fact that the empty slots are opposite each other automatically indicate they are would be load balanced?
or do I need to take the cover off of the panel and look to see what legs the breakers would plug into?

JLMCDANIEL
Re: load balancing on a residential service panel

You should rearrange because for a 240 v unit the breakers should be a double breaker with both halves tied together not 2 separate breakers.

Jack

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