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tbirdsc 01-09-2013 10:57 AM

Adding a Sub panel
We just moved and want to bring our hot tub to the new house (its staying at a friends). The new house has a 200 amp main panel but its full can we add a sub panel to the main power or do we need a breaker to the line for the sub? I'm guessing not but wanted to ask before I had an electrican come out
it looks like upgrading the main wouldn't be that bad its on a block wall with the wires behind a removable panel but if I dont have to upgrade the main I dont want to spend the extra cash

I'm in Florida if that helps

Jim Port 01-09-2013 11:21 AM

A demand load calculation needs to be done to see if your service can handle the new load.

tbirdsc 01-09-2013 04:35 PM

Thanks for the reply
if you mean the load coming into the house I would assume it would (but would verify before doing anything) the house was built in 2005 and being in Florida a pool is always an option even after the home has started construction. This will most likely not be a DIY project I just wanted to get an idea of what will have to be done before I start calling people

If the load is fine for for the extra load can I add a sub box or would the main panel need to be upgraded.

jbfan 01-09-2013 04:51 PM

If the calculations say you can add a tub, then a sub can be added.

tbirdsc 01-10-2013 07:04 AM

so the line to the sub panel doesnt need to have a breaker on it? I used to do car audio and we over fused everything so thats my way of thinking.
I dont plan on a long run to a sub it will be next to the main panel

NJMarine 01-10-2013 07:17 AM

The circuit to feeding the subpanel has tobe protected by a breaker. The breaker size is determined by the wire size feeding the subpanel.

Jim Port 01-10-2013 07:18 AM

The feeder for the hot tub will need a two pole breaker in your panel to provide power to the tub. If you do not have space for the breaker you will need to add a subpanel.

tbirdsc 01-10-2013 07:21 AM

Thanks that was really my original question since my main panel is full if the line coming into the house can handle the extra load my main panel needs to be changed for a larger one

thanks everyone

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