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Quote1. To play it safe, always replace outlet with same amperage rating as circuit breaker.2. Never change out a 15 amp breaker with a 20 amp breaker (unless you change the wire gauge).3. Install wires according to instructions that came with the outlet.4. Better yet, have an electrician do it.This is a public forum. We all offer opinion on different topics. All of our interpretations are only opinions. For anyone to do any wiring or installing of any device on his own, wheather right or wrong is his/her own problem. Some of us have pointed out different interpretations of the NEC and have offered opinions only. I am not a licensed electrician. You do as you see fit. If you want real answers, see point #4 above.Wayner
1. To play it safe, always replace outlet with same amperage rating as circuit breaker.2. Never change out a 15 amp breaker with a 20 amp breaker (unless you change the wire gauge).3. Install wires according to instructions that came with the outlet.4. Better yet, have an electrician do it.
Ok...now I'm worried. Why did my response spark (pun) a sudden influx of disclaimers?
Don't stress. According to my interpretation of the NEC, as long as you have a dual gang (which is just a receptacle with two plugs) 15A receptacle installed on a 20A line, you are fine. The point I was trying to make, and I think Wayne as well, is that we are NOT electricians, so take what we have to say with that in mind. If there is any doubt or worries in your head, pony up the green for an electrician to come give everything his blessing. Then you know all is well! I think I have made a mountain out of a mole hill, and I apologize for that. Certainly not my intention... Peace, Lee Quote from: bprice2 on 3 Jun 2008, 07:38 pmOk...now I'm worried. Why did my response spark (pun) a sudden influx of disclaimers?
On second thought the house has been wired this way for 15 years, and yet she still stands. Perhaps is I who makes mountains of mole hills.
OK, everyone just to clarify the below.According to table 210.21(B)(3) of the NEC code, a 15A branch circuit can only have a 15A receptacle attached. A 20A branch circuit can have either a 15A or a 20A receptacle attached. As the material is copyrighted, I will not cut and paste it, however, if you wish to read the code, please visit:http://www.nfpa.org/freecodes/free_access_document.asp ...and go to article 210 page 70-51 for the chart.FYI--While I neither endorse or recommend that a person installs a 20A receptacle on a 15A circuit, it is done all of the time by audiophiles. LeeQuote from: cryoparts on 2 Jun 2008, 10:40 pmHmmm... Double check this please. It is my understanding that a 20A receptacle is NOT for use on a 15A breaker. The reasoning is that a 20A device could be inadvertently hooked up to a 15A rated circuit, draw too much current through the wire (provided the breaker failed and did not trip), heat the wire up and potentially cause a fire. I think a 15A "dual gang" receptacle can be used on a 20A circuit, however.I am not an electrician, though. I will encourage one of my customers who is to come and clear up the confusion.Lee Quote from: Wayner on 2 Jun 2008, 04:38 pmA slight correction is needed here. A 15 amp receptacle is a NEMA L5-15R. A 20 amp receptacle is a NEMA L5-20R. A 15 amp plug (L5-15P) can be plugged into either a NEMA L5-15R or L5-20R. A NEMA L5-20P plug will not fit into a NEMA L5-15R receptacle. Therefore it is acceptable to use a 20 amp receptacle in a 15 amp circuit (controled by the 15 amp breaker). It is not acceptable to have a 15 amp outlet on a 20 amp breaker. Note: assuming the correct wire gauge is used for either branch circuit.Wayner
Hmmm... Double check this please. It is my understanding that a 20A receptacle is NOT for use on a 15A breaker. The reasoning is that a 20A device could be inadvertently hooked up to a 15A rated circuit, draw too much current through the wire (provided the breaker failed and did not trip), heat the wire up and potentially cause a fire. I think a 15A "dual gang" receptacle can be used on a 20A circuit, however.I am not an electrician, though. I will encourage one of my customers who is to come and clear up the confusion.Lee Quote from: Wayner on 2 Jun 2008, 04:38 pmA slight correction is needed here. A 15 amp receptacle is a NEMA L5-15R. A 20 amp receptacle is a NEMA L5-20R. A 15 amp plug (L5-15P) can be plugged into either a NEMA L5-15R or L5-20R. A NEMA L5-20P plug will not fit into a NEMA L5-15R receptacle. Therefore it is acceptable to use a 20 amp receptacle in a 15 amp circuit (controled by the 15 amp breaker). It is not acceptable to have a 15 amp outlet on a 20 amp breaker. Note: assuming the correct wire gauge is used for either branch circuit.Wayner
A slight correction is needed here. A 15 amp receptacle is a NEMA L5-15R. A 20 amp receptacle is a NEMA L5-20R. A 15 amp plug (L5-15P) can be plugged into either a NEMA L5-15R or L5-20R. A NEMA L5-20P plug will not fit into a NEMA L5-15R receptacle. Therefore it is acceptable to use a 20 amp receptacle in a 15 amp circuit (controled by the 15 amp breaker). It is not acceptable to have a 15 amp outlet on a 20 amp breaker. Note: assuming the correct wire gauge is used for either branch circuit.Wayner