What size breaker do I need 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.
Can I put a 30 amp breaker in a 30 amp sub panel?
The amount of current that is required for the connected loads can only be supported by a 30 Amp sub-panel. The maximum quantity of branch circuits can be determined with a load calculation. Two 15amp breakers or one 15amp and one 20amp can be used on a 30amp circuit.
Can I run a 40 amp breaker from a sub panel?
Yes, that’s fine. The breaker in the main panel needs to protect the wiring to the subpanel.
What can you run off a 50 amp sub panel?
A 50-amp breaker can run appliances like ovens, hairdryers, air conditioners, and multiple lights simultaneously while (possibly) still sparing power. The reason for this breaker’s capacity is because it can hold up to 12,000 watts running on a 240-volt circuit (50-amps x 240-volts).
Can you 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.
Can you run a 100 amp sub panel off a 50 amp breaker?
It’s a rating.
It’s the same with subpanels: The “100A” is a maximum rating. Do not exceed 100A. However, you certainly should exceed your feed-breaker size of 50A. Even if 50A panels existed, they would be very small in terms of numbers of spaces.
What size wire is needed for a 30 amp sub panel?
You need 10-gauge, three-conductor cable to wire a 30-amp subpanel. This cable has two hot wires (usually colored red and black), a white neutral wire and a ground wire, which is usually bare but could be green. It carries electricity at 240 volts, so you must treat it differently than regular 120-volt electric cable.
Can you have a 20 amp sub panel?
You can add as big a (sub) panel as you wish so the 4 circuits are not a problem but the circuits are limited as follows: no more than 60 amps of 120V at the same time. no more than 30 amps on a single leg (there are two legs).
Will a 12 2 wire carry 30 amps?
Yes, based on the National Electric Code or NEC, you can use 12-2 AWG cables for THHN or THWN-rated wires. These cables are made for general purposes and can hold up to 194 degrees without taking any damage. It simply means these wires can withstand the heat temperature drawn by a 30 amp circuit breaker.
Can a 60 amp breaker feed a 100 amp sub panel?
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.
Can I put a 50 amp breaker in a 60 amp subpanel?
You can put the GFCI breaker in the main panel, and protect every circuit in the subpanel just like that. That would also allow you to use one of GE’s “double-stuff” 2-pole 50A breakers, that is only 1″ tall, leaving you 2 spare half-spaces in the panel.
What size wire do I need to run 50 amps 100 feet?
6 AWG
For every 100 feet, voltage drops by 20%.
Example: 50 amp wire is usually the 6 AWG (we require at least 62.5A and 6 AWG can handle 65A). If you have to power an electric device 100 feet away, you need 20% amps more. Instead of 62.5A, you’re looking at 62.5A × 1.2 = 75A.
How big of a subpanel 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.
How big of a subpanel can I install off a 100 amp service?
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.
Can I feed a 200 amp sub panel with a 100 amp breaker?
Yes. There is no real NEC provision that would prohibit this so it’s allowed. The 200 amp CB is simply being used as a disconnect if the feeder is protected by a 100 amp OCPD at it’s origin.
How many 220v outlets can you have on a 200 amp service?
Most 200-amp breaker panels have 40 to 42 slots of single-pole breakers or 20 slots for double pole breakers.
How many amps can a 200 amp panel handle?
In this case, a 200 amp panel should not exceed 160 amps at any time or 32000 watts. Watts is constant and does not vary. However, voltage and amperage will vary. The amperage determines how much power can run through an electrical panel.
Can you use a 100 amp breaker for a 125 amp sub panel?
If it’s a 125 amp panel, then you can use a 100A breaker on the main panel to feed the breaker. The new sub panel must always have the same ampacity rating as the panel that is feeding it.
How many amps can a 100 amp breaker handle?
Depending on how the 100- amp panel was manufactured, you can install breakers between 20-24 (minimum) and 30-42 circuits (maximum).
