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The number of devices depends on how many amps each device pulls. If 10 devices pull 2amps a piece then that is your entire 20amps. If your breaker trips then you know you've exceeded the amperage for that circuit.

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14y ago
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5mo ago

It is recommended to have a maximum of 10 outlets on a 20 amp circuit to ensure safety and prevent overloading. The actual number of devices that can be connected will depend on their individual power consumption.

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11y ago

Depends on the load, or rather the current draw of the individual devices. If the total current draw is less than 20 amps all is fine. If the total current draw is more than 20 amps, then the breaker will trip.

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12y ago

This has been answered several times.

There is no limit to the number of receptacles permitted by the NEC on a 20 amp circuit in a single family home.

Not sure if your trying to add receptacles or simply trying to gauge if your overloading a circuit.

Here is good rule of thumb: calculate VA.

VA is simply volts multiplied by amps and commonly known as a watt. A 20 amp breaker at 120 volts provides 2400 VA/Watts.

NEC 220(b)(8) attempts to clarify and defines 180 VA per duplex in commercial and industrial applications. 2400 VA from 20 amp breaker provides 13 receptacles. (120 volts times 20 amps provides 2400 VA) and (2400 VA / 180 VA = 13)

If you trying to calculate the number of amps your using simply add the VA of all devices on the breaker. If you are not given watts then use amps to find watts. VA = volts x amps. Volts are already known at 120.

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Q: How many devices can be on a 20 amp curcuit?
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How many 20 amp circuits can you run on a 50 amp service?

In the United States, there isn't a hard limit on how many 20 amp circuits that can be run on a 50 amp supply. This is because in most cases, especially in homes, we don't load most circuits with more than an amp or 2, even when they are protected by a 20 amp breaker. From a practical perspective you probably have a limited number of slots for breakers in your service or supply panel.


Can a circuit breaker be tripped by using 20 amp sockets instead of 15 amp sockets?

A circuit breaker protects the wires that the devices are connected to. If the devices that are connected to the circuit are 20 amps the wire size should be #12 wire fed from a 20 amp breaker. This breaker should not trip unless the circuit is overloaded or a fault occurs on the circuit. If the devices that are connected to the circuit are15 amps the wire size should be #14 wire fed from a15 amp breaker. This breaker should not trip unless the circuit is overloaded or a fault occurs on the circuit. Putting 20 amp sockets on this 15 amp circuit will work but the circuit is limited to the amount of load that can be plugged in. You will not get the full capacity of the 20 socket because the breaker will trip at 15 amps.


Can you use 15 amp wall outlets in living room?

Yes, you can use 15 amp wall outlets in a living room. These outlets are suitable for most common household devices and appliances that don't require high power consumption. However, if you plan to connect high-power devices like air conditioners or space heaters, you may need to install dedicated 20 amp outlets.


How many lights on 20 amp circuit?

Provided you use wire that is rated for 20 amps.


Can you use a 20 amp fuse and wire rated for it in a 15 amp outlet?

No, it is not safe to use a 20 amp fuse and wire rated for it in a 15 amp outlet. The outlet is designed for a maximum of 15 amps, so exceeding this limit could lead to overheating and potentially start a fire. It is important to use components that are rated for the appropriate amperage to ensure safety.

Related questions

What size wire is needed to run a 50' 20 amp curcuit?

12 gauge or bigger.


How many 20 amp circuits can you run on a 50 amp service?

In the United States, there isn't a hard limit on how many 20 amp circuits that can be run on a 50 amp supply. This is because in most cases, especially in homes, we don't load most circuits with more than an amp or 2, even when they are protected by a 20 amp breaker. From a practical perspective you probably have a limited number of slots for breakers in your service or supply panel.


Can your 30 amp generator pull a double 20 amp circuit?

When the term "double 20 amp circuit" is used, the presumption is that, it is 20 amps at 240 volts. If your generator has the breaker built in then, yes, you have the capacity to run 240 volt devices from your generator.


How many 1.2 amp lights can a 20 amp breaker hold?

No more than 13 maximum on a 20 amp circuit.


How many 5 amp TVs can be plugged into a open circuit?

You can plug in as many as you want but none of them will work. An "open" circuit is an electrical circuit which is not a complete circuit and therefore electricity will not flow through it. If you mean an unused circuit,which has no load on it, then the answer is 2 ea. 5 amp devices on a 15 amp circuit and 3 ea. 5 amp devices on a 20 amp circuit. The reason for this is that any circuit is not to be "loaded" more than 80% of the OCPD (circuit breaker amperage rating.


Can a circuit breaker be tripped by using 20 amp sockets instead of 15 amp sockets?

A circuit breaker protects the wires that the devices are connected to. If the devices that are connected to the circuit are 20 amps the wire size should be #12 wire fed from a 20 amp breaker. This breaker should not trip unless the circuit is overloaded or a fault occurs on the circuit. If the devices that are connected to the circuit are15 amps the wire size should be #14 wire fed from a15 amp breaker. This breaker should not trip unless the circuit is overloaded or a fault occurs on the circuit. Putting 20 amp sockets on this 15 amp circuit will work but the circuit is limited to the amount of load that can be plugged in. You will not get the full capacity of the 20 socket because the breaker will trip at 15 amps.


New shop 20 amp circuit 32 amp fixture how many fixtures can be put on circuit?

A 32 amp fixture can not be fed from a 20 amp breaker as the breaker will trip every time.


Can you use 15 amp wall outlets in living room?

Yes, you can use 15 amp wall outlets in a living room. These outlets are suitable for most common household devices and appliances that don't require high power consumption. However, if you plan to connect high-power devices like air conditioners or space heaters, you may need to install dedicated 20 amp outlets.


How many lights on 20 amp circuit?

Provided you use wire that is rated for 20 amps.


Can you use a 20 amp fuse and wire rated for it in a 15 amp outlet?

No, it is not safe to use a 20 amp fuse and wire rated for it in a 15 amp outlet. The outlet is designed for a maximum of 15 amps, so exceeding this limit could lead to overheating and potentially start a fire. It is important to use components that are rated for the appropriate amperage to ensure safety.


How many bulbs can a 20 amp switch control?

100 bulb


20 amp breaker how many watts?

On a 20 amp breaker, you can safely operate devices that consume up to 2400 watts (20 amps x 120 volts = 2400 watts). Exceeding this limit can trip the breaker to prevent overheating and fire hazards.