How do you feed a subpanel from the main panel?

Quote from the video:
Quote from Youtube video: Goes into the panel. And on to the ground burn. Everything is connected ready to heat this up at the main panel we've completed the other panel. We've completed this panel.

What wire goes from main to sub panel?

The cable you run from the main panel to the subpanel also depends on the amperage rating. You can use 10 AWG, three-conductor wire for a 30-amp panel, but for a 60-amp one, you need 6 AWG wire. If you’re installing a 100-amp panel, you need 4 AWG copper or 2 AWG aluminum three-conductor cable.

How many wires can be from the main panel to a sub panel?

A subpanel requires two hot wires connected to a 240-volt double-pole breaker in the main panel. It also needs a neutral wire and a ground wire. The cable used for this run is known as a “three-wire cable with ground.” The two hot wires, called feeder wires, will provide all of the power to the subpanel.

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

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, …

Can I run a 200 amp sub panel off 200 amp main?

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.

How far can subpanel be from main panel?

The right feet would be between 4.5 to 5 feet.



The cable running from your main panel to the subpanel depends on the amperage rating. For instance, for a 30A panel, use a 10 AWG, three-wire conductor.

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.

Does a subpanel need a main breaker?

The subpanel may be equipped with a main breaker to allow for power interruption without having to go back to the main panel, but it is not required to have a main shutoff circuit breaker, since the feeder breaker back in the main panel serves this function.

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.

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.

Can a main panel be used as a subpanel?

There’s no problem with having a main breaker in a subpanel. It’s required if your panel is in a separate building and has more than six breakers, but there’s nothing prohibiting it in any other case.

How many breakers can you put in a 100-amp panel?

20 circuits

Typical 100-amp panels have 20 circuits, meaning they can handle 20 full-sized breakers. 20/24 panels can hold 16 full-sized and 4 twin breakers (24 circuits in total). The number of breakers can max out to 30-42, too, depending on the design of your 100-amp pane.

What is the 6 breaker rule?

The “rule of six” refers to how many breakers or throws it takes to disconnect a building from the electrical supply, so if you have more than six breakers in a box at your service entrance there needs to be a disconnect upstream of it, either in the panel or upstream.

How do I know if my electrical panel is overloaded?

Buzzing or Sparking If you hear a buzzing sound or see sparks near the service panel, this indicates a major electrical problem. Overloaded circuits can damage breakers, connections and wiring, leading to arcing that creates sparks or buzzing noises, as well as a very serious risk of fire.

Can breakers add up to more than Main?

It is very common for the sum of the branch circuit breakers to add up to more than the main circuit breaker. The engineer that originally designed the building and electrical system understood that the loads were intermittent, and very unlikely to be maxed out at the same time.

How many subpanels can you have on 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.

How much can you run on a 200 amp service?

In general, a 200-amp panel should handle no more than 160 amps at once. It’s important to note that people can have 300 or even 400 amps worth of breakers in a 200A panel, as they don’t use all circuits at the same time. Calculating how many circuit breakers you need is also dependent on your home electrical loads.

How many breakers can I put in a 60 amp sub panel?

The minimum amperage panel for modern homes is 100, 150, or 200-amps. The NEC does not allow installing panels rated below 100-amps as the main electrical panel for the house. Modern 60-amp electrical panels are purpose-built as sub-panels and generally only have 8 to 10 slots available for circuit breakers.

How much can you run off 60 amps?

The amount of power that each circuit can handle is the number of volts (usually 120) times the number of amps. Therefore, that 60 amp circuit can handle 7200 watts.

What size wire do I need to run 60 amps 200 feet?

For 60 ampere breakers, electricians and professionals suggest using a wire size gauge ranging from 6 AWG to 4 AWG. All household wires have a rating of at least 600V, so only amperage really matters when it comes to determining wire gauge. Therefore, the wire size for 60 amp 220v, for example, is still 6 to 4 AWG.