What is the difference between a 15 amp and 20 amp GFCI?

Asked By: Circe Hoefner | Last Updated: 19th May, 2020
Category: home and garden home appliances
4.2/5 (420 Views . 15 Votes)
The amperage of the outlet must never exceed the amperage of the circuit. According to National Electrical Code, only a 15-amp or 20-amp electrical receptacle can be installed to a 20-amp circuit. However, a 20-amp GFCI outlet may not be installed to a 15-amp circuit.

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Accordingly, is it OK to use a 20 amp outlet on a 15 amp circuit?

If your question is “can I connect a receptacle rated for 20 amps to a circuit designed for 15 amps?”, the answer is yes, because the receptacle can handle more current than the circuit is rated for. If you exceed 15 amps, the breaker will blow, and protect the receptacle.

Beside above, how many GFCI outlets can be on a circuit? You only need 1 GFCI outlet per circuit (assuming it's at the beginning of the line and the rest of the outlets are loads). They are correctly wired in parallel - if they were in series, you wouldn't get the correct voltage at the other outlets when there is any type of load present.

Similarly, it is asked, what is the difference between a 15 amp and 20 amp outlet?

20-amp receptacles have a horizontal slot branching off one of the vertical slots. Electrical plugs designated as 20-amp will not fit into 15-amp outlets. A 15-amp circuit is usually served by 14-gauge wire and is protected by a 15-amp circuit breaker or fuse.

How many outlets can be on a 15 amp breaker?

for a 15 amp circuit this allowed for 10 outlets and on a 20 amp circuit 13 outlets were allowed.

21 Related Question Answers Found

How do you size a breaker?

To find the current draw, you just divide this number by the voltage at which it operates, which is either 120 volts or 240 volts. Then, multiply this number by 125 percent. An easy way to do this is to divide it by 100 and then multiply it by 125. The rating of your circuit breaker must be larger than this total.

Can you use 14 gauge wire on a 20 amp circuit?

You can not use 14 AWG anywhere on a circuit that has a 20A breaker. If you are putting 15 amp receptacles on a 20 amp circuit with 12 gauge wire, then you MUST use the screw terminals, not the back stab terminals. Just use the side terminals.

Do I need 20 amp outlets in kitchen?

Requirement: Provide at least two 20-amp, 120-volt circuits to supply power to GFCI (Ground Fault Circuit Interrupter) receptacles for countertop and eating areas. Why: The 20 amps are required (vs. 15 amp) for the higher power requirements found in kitchens. Think toaster ovens, blenders, and mixers.

Should bathroom outlets be 15 or 20 amp?

There is no need for a 20 amp slot GFI in a bathroom. You will not find appliances in a residential setting that need the T-slot. Even a 15 amp slot GFI is rated for 20 amp thru-put.

Do bathroom outlets require 20 amps?

Bathroom Circuits
A basic wiring plan for a bathroom includes a 20-amp, GFCI-protected circuit for the receptacles and a 15-amp general lighting circuit for the switches, light fixtures, and vent fan. Heat lamps, wall heaters, and other built-in heating appliances may also require dedicated circuits.

Can I use a 15 amp plug at home?

It is possible to plug a 15 amp plug into 10 amp socket legally and safely using an adapter called ampfibian. It MIGHT help in certain instances, for example I can use my small arc welder with 15 amp plug in ordinary household socket without problem.

What size wire do I need for a 20 amp breaker?

For a given wire size, increasing the current increases voltage drop. A general rule of thumb (and code minimum) for residential wiring in the United States is to use no smaller than 12 AWG wire on a 20 A circuit. Install 2 20 amp receptacles on a 30 amp breaker in parallel.

What uses a 20 amp plug?

You can plug in those heavy draw appliances like mixers, food processors, toasters, electric ovens or frying pans etc. Yes, they all say they are 15 amp but, they will draw more if under load. Just to clarify, a 20 amp receptacle is required to be on a 20 amp circuit.

Is it OK to put a 15 amp outlet on a 20 amp circuit?

BOTTOM LINE: 15 AMP OUTLETS ARE FINE IN A 20 AMP CIRCUIT AS LONG AS IT IS NOT THE ONLY OUTLET IN THE CIRCUIT. It's referring to single receptacles, I.e., a microwave outlet a sump pump. You install a 15A single receptacle, and code requires that to now be a 15A circuit, with a 15A breaker.

What is a 15 amp plug used for?

A 15 amp circuit is a dedicated single outlet, single phase circuit with heavier duty wire to carry the load. These sockets and plugs have a larger earth pin so the 15 amp plug cannot be inserted into a 10 amp supply, but a 10 amp plug will fit into a 15 amp socket.

Why does a 20 amp outlet look different?

15a and 20a receptacles have different pin configurations. A 20a receptacle will have one slot that is turned sideways or T shaped to allow a 20amp plug to be used. A 15amp receptacle on a 20 amp circuit will not overload the circuit. You will only be allowed to plug in 15a devices.

How do you change a 15 amp outlet to a 20 amp outlet?

The rule is: use number 12 wire for a 20 amp breaker and 20 amp receptacle; use number 14 wire for a 15 amp breaker and 15 amp receptacle. You must find out the size of the wire. Do not be misled by the sizes of the breakers and receptacles you currently have.