Can you run a 200 amp sub panel off a 200 amp service?

Is feeding a 200A sub from a 200A main legit? Yes, and you don’t even need another 200A breaker. The 200A breaker alread present in the panel will suffice, and so you can use a subfeed lug kit as DrSparks advises.

Can you use a 125 amp sub panel?





You can run any wire size you want. It’s OK to supply a 125A panel with less than 125A, as long as the breaker in the main panel protects the wires as follows: 14/3 copper feeder needs a 15A breaker. 12/3 copper requires a 20A breaker.

Can you add a sub panel to a 200 amp service?

If you have older 60-amp or 100-amp main service, it is entirely possible that you will need a service upgrade to 150-amps or 200-amps before you are able to adequately power a new subpanel.

How big of a sub panel can I install off a 200 amp service?

Even though there is no limit on the number of subpanels that you can add to a circuit, it shouldn’t exceed 160 amps when you’re using a 200 amp main panel. Always follow this guide to install subpanels effectively.

Can you run a 100 amp sub panel off a 200 amp main panel?

Of course you can, you can add the 100 amp breaker to your 200 amp as long as it isn’t overloaded, to start adding the subpanel you must first calculate how many yards it will be from the main panel to the subpanel, there is a formula that calculates how much friction will be on the wire at the connecting distance, …

Does sub panel wire need to be in conduit?





Re: Subpanel wire run

Individual THHN conductors must be run in conduit–either metallic or non-metallic, flexible or rigid. You could probably use SER instead, as long as it’s sheathed and contains four conductors: one for Leg A, Leg B, neutral, and ground.

What size wire do I need to run 100 amp Service 150 feet?

#00 AWG wire

Wire Size For 100 Amp Sub Panel 150 Feet Away
100 amp service 150 feet away from the sub panel requires #00 AWG wire (also known as 2/0 AWG wire). This wire has a median ampacity of 175 amps; more than enough than the required minimum 162.5 ampacity.

Can you run a 100 amp sub panel off a 100 amp main panel?



Let me try and answer some of your questions. First the panels you are looking at that are rated 100A simply means you can use them for any application up to 100A. You can for example add a 60A breaker to your existing panel and protect the new subpanel with a 100A rating.

How many circuits can be on a 200 amp panel?

How many circuit breakers in a 200 amp panel? Most 200-amp breaker panels have 40 to 42 slots of single-pole breakers or 20 slots for double pole breakers.

Can you feed a 100 amp sub panel with a 60 amp breaker?

You can feed a 100 Amp panel with a 60 Amp breaker. Keep in mind that the sub panel needs to be rated above the breaker size.

How many circuits can be on a 60 amp sub panel?



Modern 60-amp electrical panels are purpose-built as sub-panels and generally only have 8 to 10 slots available for circuit breakers.

Can you feed a 100 amp sub panel with a 50 amp breaker?

Just wire it up. There is no problem using a sub panel that can take more current than you will ever feed it. Points to note: The cable to your hot tub will be rated for 50A (not 100A); therefore you must not upgrade the breaker in your main panel to 100A.

Can you run a sub panel off of a sub panel?

Answer: Yes. The main electrical service panel is where branch circuits originate.

What is the 6 breaker rule?

The “six breaker throw rule” was a requirement in the National Electrical Code that a service must have have a main disconnect that shuts off all power and it cannot take more than six switch throws to do it, and the main disconnect(s) also must be clearly marked, as in the photo above.

Does a subpanel need a ground rod?



Yes, any sub panel outside of the main building requires it’s own ground rod and a ground wire back to the main building. And yes, a sub panel in the same building as the main does not need a ground rod – only the ground wire.

How many circuits can be on a 30 amp sub panel?

To summarize the last 8 comments: There is nothing wrong with having 4 15amp circuits in a sub-panel that has a 30 amp main breaker. You can use max 15 amp on any one circuit, and max 30 amp all combined.

How many amps will trip a 30 amp breaker?

If breaker is rated 30 amp, then 30 x . 8 = 24 amp safe maximum.

What breaker should I use for a sub panel?

Based on your question, since you will be having a subpanel, you want the breaker feeding the subpanel to be sized for the subpanel or slightly smaller. So if you purchase and install a 200A subpanel, then the breaker should be 200A. If you use a 125A subpanel, then use a 125A breaker.