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Yes but it will limit your 20 amp circuit to 15 amps. Any amperage over 15 amps on the 20 amps circuit will trip the breaker protecting the sub panel.

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โˆ™ 2012-11-18 20:22:02
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Q: Can a sub panel from a 15 amp breaker be used with a branch circuit with 20 amp breaker?
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Related questions

If an electrician have a circuit that pulls a load of 10 amps what size breaker must that circuit be protected by?

If you are talking about a breaker in a house panel then a 15 amp breaker would be used. It is the smallest amperage breaker that you will find in a house panel.

Where are circuit breakers commonly used at home?

In the circuit breaker panel. It's the only place they're used.

What is the function of Air Circuit Breaker?

This device is protecting over load current.ACB is mostly used for MV panel and LV panel.

What is the maximum number of branch circuit breakers allowed in a 100 amp panel?

I just spoke with an inspector here in NJ today and according to him pending on what panel(squareD)in this case, it is 24 space but can be 48+. Stating that the breakers allow you to place two branch circuits on one breaker. Didn't make sense to me, being that while in school at my union it was 1 circuit for each breaker. Unless, some tandem breakers are used. Check the breaker and see what its rated for. Hope this helps.

Where is power window circuit breaker for 1989 Toyota Cressida?

Not circuit breaker only fuses in cars that are used. Driver side kick panel 7.5a gauge fuse check it fist.

Why fuses and circuit breakers are connected in series with the circuit in the panel board?

circuit breaker and fuses used in series to break the circuit in overcurrent situation to block current to flow through circuit.

A fuse or circuit breaker used in a circuit is usually inserted in?

A fuse or circuit breaker used in a circuit is usually inserted in series with the load.

What is the difference between Air circuit breaker and Vacuum circuit breaker?

air circuit breaker is use air to break acircuit and its used in low tention side only ..vacuum circuit breaker side vacuum was used to break a circuit its used in high tention

Where circuit breaker are used?

A circuit breaker is an overcurrent protection device. They are used everwhere from the miniature circuit breaker which protects a simple lighting circuit in your home, to huge circuit breakers that protect transmission lines.

Can a main circuit breaker of a panel be used as the service disconnecting means?

No, it is still live even when the switch is open...

What is a electric circuit breaker?

An electric circuit breaker is switch that is used to protect electrical circuit from a short circuit or overload.

What type of circuit breaker is required for a 240 v branch circuit?

the circuit breaker used will be miniature circuit breaker(MCB) maily used in homes.Answer for USA, Canada and countries running a 60 Hertz supply service.A two pole circuit breaker is used for a load of 240 volts. It is sized, according to the load amps of the device, to protect the wires that supply the load current.

Is a circuit breaker a resistor?

No, a circuit breaker is a safety device that is used in a circuit to limit the amount of current in an overload or short circuit condition. The number on a breaker is the top end current that the breaker will handle before opening the circuit.

Why tap in your house gives shock when it is touched or used?

Your water system is not grounded. Turn the main breaker in your distribution panel to off and ground the water system. If a "hot" wire has come into contact with the plumbing, when you turn the electrical panel main breaker back on a breaker will trip. This will give you the circuit that is at fault and a place to start looking for the short circuit.

What is the maximum wire size needed for a typical branch circuit that is protected with a 20-amp circuit breaker?

I think you mean either what is the correct size or minimum wire size needed when a branch circuit is protected by a 20 A breaker. The size is 12 American Wire gauge (AWG). 14 AWG is used for 15 A circuit and 10 AWG for a 30 A breaker. The lower the gauge the larger the cross-section of the wire.

What circuit breaker is used in a load center?

Don't Understand your question, all of your circuit breakers start at the load center and then branch out to your recepticles(plugs) ETC.

What is the role of the main fuse in a domestic circuit?

Power (current, voltage) as supplied by the utility comes in through a main fuse/breaker which is connected to a branch circuit fuse breaker and then goes out to the house's lights and outlets. In the US, the standard for general (those not feeding a specific load, like a stove or dryer) branch circuit is 15 amps (although sometimes 20 amps is used). The main fuse/breaker (i.e., the "service entrance") used to be 100 amps; I think it is now generally 200 amps (though I know of one house that has 600 amps). In addition, there are branch circuits for the stove, dryer, air conditioning, etc., all of which will probably be more than 20 amps. The thing to note is that the sum of all the branch circuits is greater than the ampacity of the service entrance. The difference between the two is based on the assumption that not all of the branch circuits will be drawing their full rated current at all times. The branch circuit breakers protect their wiring against overloads, and the main breakers protect the supply and panel against overloads. This same philosophy is duplicated in (generally) commercial buildings where there are sub-panels closer to the loads. There will be a master breaker for the sub-panel, generally located at the source panel for the supply to the sub-panel, but sometimes at the sub-panel itself.

Which circuit breaker is used in railway electrification in country like India?

vaccum circuit breaker

What is a tandem breaker?

Tandem breakers, often called split breakers or double breakers, provide two separate circuits in the space of a regular sized breaker opening. Every circuit breaker panel has a limited number of circuit openings available. The problem is that when the openings are all used up and you still need to add another circuit, what do you do? You could change the electrical panel or double up circuits on a breaker, but this could place too much load on a particular circuit. So what then? The answer that many have found is a tandem breaker. This type breaker is the same size as any other breaker, but it has its difference. This breaker sports two smaller breakers built into one regular sized breaker. Each has its own breaker switch and the breaker snaps in just like a regular breaker. With this simple innovation, you can add a circuit and protect the circuit on its own dedicated line.

A small appliance circuit will be protected by a circuit breaker rated at?

A small appliance circuit will be protected by a circuit breaker rated at 15 amps if the circuit wires are #14. If the circuit wires are #12 then a 20 amp circuit breaker could be used.

How should a fuse or circuit breaker be used?

to protect the circuit

What is the use of the circuit breaker?

A circuit breaker is used to ensure that the circuit doesn't get overloaded with too much wattage or voltage, which can cause a fire.

What are the common sizes of circuit breaker panel for all electrical home?

200 amp is the most common size used in most homes.

What is use of a moulded case circuit breaker?

A 'molded case circuit breaker' is a common designation for the circuit breakers used in the main electrical panel of most American homes. The name is meant to infer that it is designed to never be opened, repaired, or modified. Replacement is the only option.

What is a breaker and what is it used for?

An electrical breaker is a safety device used to open a circuit that has an electrical fault on it.