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Is a 50-20 duplex main circuit breaker adequate for a three bedroom house with 13 outlets?
No! At this time I wouldn't have less than a 200 amp service for a 3 bedroom house. Keep in mind just because there is a place to plug "stuff" into doesn't mean there is enough capacity in the wiring to handle the load. Please call an electrician. The Fire Department call would be much more expensive.
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Technically, they can be on a 15 amp breaker when you use 15 amp outlets. There is a difference. Be sure to check your local code (just call the city building department and t…ell them you have a code question). some cities require the bedroom outlets to be on an arc-fault breaker.
First off there are instances when you can have only 1 outlet on that circuit. If it is powering a microwave, refrigerator, washing machine, garbage disposal, dish washer,… or freezer then that is all that can be on that circuit. But I assume you are talking about a room circuit. By code 1 outlet can cover a 12 foot area. That is 6' on either side of the outlet. So a 12' x12' room by code needs at least 4 outlets, 1 in the center of each wall. If a wall is over 2' wide it needs an outlet. You can put as many as you want up to a point. It really depends on the load on that circuit. I like to stick with the 12 rule and never install more than a combination of 12 on each circuit. That 12 is a combination of lights and outlets. So if you have 10 outlets and 2 lights you are safe. It also depends on what those outlets are powering. If for instance they are powering hair dryers, curling irons, cloths irons, etc then they pull lots of power. So something like a bathroom should be on it's own dedicated GFCI protected circuit even though it may have only 3 or 4 outlets. A bedroom on the other hand does not pull lots of power so you could easily install a combination of 12 lights/outlets. I cannot cover all scenarios in this short space but use common sense and do not overload the circuit. The main restriction is that the total load must not exceed 20 amps and preferably 80% of that which is 16 amps.
One View: In USA: As many as you want. There's no magic number. You have 15A to play with, so you can divide that up however you wish. It all depends on what you intend to …plug in. For general usage I'd stick with the NEC Code (any point along a wall must be within 6ft of a receptacle). In my 1970's house here I've counted 9 receptacles on a single 15A breaker (yuck!). Always be sure to switch off the breakers at the main panel before you attempt to do any work on any mains power circuit. Another View: Yes there are some "magic numbers".The U.S. National Electrical Code Article 220.3 (B) (9) has guidelines for calculatiing general 120 volt dwelling-unit receptacle circuits as having a load of 180 volt-amps per receptacle. Because a normal circuit breaker can only be loaded to 80 percent of trip rating, then 0.80 X 15 = 12 Amps. 12 Amps X 120 volts = 1440 Volt-Amps per 15-Amp circuit. 1440 VA / 180 VA per receptacle = 8 duplex receptacles per circuit allowed. For a 20-Amp circuit, you are allowed (.8 x 20 X 120)/ 180 = up to 10 duplex receptacles per circuit. Another View: Both answers are technically correct. A device (receptacle, switch etc) by definition does not consume any energy so there is no load added to the circuit by installing any number of receptacles. The problem occurs when too many loads are plugged into those receptacles. The NEC section quoted above (moved to 220.14 (I) in 2008) does not apply to receptacles used for general illumination in a dwelling (which covers a majority of household receptacles). Dwellings are addressed by NEC 220.14 (J). Further, the 80% quoted is true for continuous loads only. If the appliances being switched on and off on a particular circuit never run continuously all at the same time, their individual wattages when totalled-up can, in fact exceed that 80% figure, because a non-continuously-loaded breaker may have 100% of its rating applied to it for short periods such that it does not become "warm"... A good guideline many electricians follow as a 'rule of thumb' is of 1.5 amps per receptacle. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself, on electrical circuits, equipment or appliances, always use a test meter to ensure the circuit is, in fact, de-energized. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS.
for USA, Canada and countries running a 60 Hz power supply service. Circuit loading In North America there shall be not more that 12 outlets on any 2 wire branch circuit. …Such outlets shall be considered to be rated at not more that 1 amp per outlet. Where the connected load is known, the number of outlets may exceed 12 providing the load current does not exceed 80 % of the rating of the over current device protecting the circuit. ( This is not found in the National Electrical Code) Generally each duplex outlet may count for 180VA. For a 15A circuit = 8 duplex max. For a 20A circuit = 10 max. This is in the Wiring Code, by the way. (This only applies to non-residential applications) In some states the 3 amp per outlet is still being used. For this case, 6 outlets max. ( What States?) In dwelling units there is no requirement for a maximum number of outlets on a circuit. The circuit could serve a single room of 500 sq. ft. and serve as many outlets you wanted including the lighting loads. (3 watts per sq. ft X 500 sq. ft.) This is the minimum requirement of the code and not necessarily good wiring practice. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself, on electrical circuits, equipment or appliances, always use a test meter to ensure the circuit is, in fact, de-energized. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS.
The biggest circuit breaker in any home is the main breaker located in your main breaker panel that is installed where your electrical service cable comes into your home.
According to code, use a 15 amp breaker if you're using 14 GA wire or a 20 amp breaker if you're using 12 GA wire. Another question to ask yourself before deciding on …the size of the circuit, how many outlets will you be using, and are you anticipating any special electrical needs? Contact an electrician for assistance with these and any other electrical questions.
yes, It does not exceed its rating No, The breaker rating exceeds the rating of the 50 amp outlet. The outlet is designed for a maximum rating of 50 amps. To trip the bre…aker the outlet would have to go 10 amps over its design. You can downsize the 60A to a 50A breaker to comply with the electrical code. The wire connected should be a # 6 which is good for 60A so it will handle 50A nicely.
It depends on the manufacturer of the circuit panel. Only their breakers are acceptable for use in their panels. That being said most breakers are 10 or 15 amp load breakers f…or lights and outlets with 30 amp load breakers for large appliances. The breaker used depends primarily on the size wire used in the circuit as undersized wiring will cause fires.
If the damaged receptacle faulted the breaker would have tripped. All that needs to be done is turn the breaker to the full off position. This will take the breaker out of the… trip position and the circuit is truly off. It should not be hard to find the faulted receptacle as it will have some major damage to it and that is what made it short out in the first place. Change it out for a new one and test the circuit by plugging a lamp into it to confirm that the wiring was done properly. When removing the faulted receptacle check the wire colours and positions and install the new one with the exactly the same wire position configuration. If the damaged receptacle is just worn out and they do wear out, plug a light fixture into the worn receptacle. With the lamp turned on start switching the individual breakers off in the distribution panel one at a time. Just switch the breaker off and on and see if the lamp goes out and comes back on. You will probably need help with this part if you can not see the lamp from the distribution panel. When you locate the breaker that controls the lamp, leave it off and change out the receptacle just as they were connected to the old worn out one.
Why would electrical outlets on different circuit breakers not work when other outlets on the circuit do?
You could have a bad outlet, loose connection, or worst case - a damaged wire or a bad splice that was illegally buried in the wall. You will probably need an electrician to… trace the problem with a meter.
Put in a new one
Can you use a 15 amp 110 outlet on a 20 amp circuit as I am replacing my old outlets with new duplex ones and realized that three of my Kitchen outlets are on one 20 amp breaker?
Yes, you can use lower amperage outlets - the problem would come if you were trying to run a 20 amp appliance on a 15 amp circuit or plug a 20 amp appliance into a 15 am…p outlet. It would be better, though, as some kitchen appliances could exceed 15 amps (toaster ovens, some coffee makers, electric griddles, etc.) could try to draw more than the 15 amps your outlets are designed for. Perhaps you could get some 20 amp outlets and use those 15's in a hallway or something less likely to have high amperage draw.
Only if it trips!
In a new house with only the standard outlets in the garage on a 20 amp breaker what is the biggest breaker you can put on the circuit?
Could you clarify the question please. You can't just upgrade the breaker. Its calculated on wire size and other things. You'll have to run different wire if yo…u want to up your amps.
If three electical outlets do not work and the circuit breaker is fine with no blown fuses what should you check next to try to fix the problem?
Is everything on that circuit breaker not working? Breakers will go bad sometimes. Get yourself an inexpensive receptacle tester (~$4.00 at hardware stores) and test each out…let. It looks like a plug with 3-4 lights on the end. It will diagnose simple problems (no hot, no ground, no neutral, reversed wires) and can aid in diagnosis.
Can you use a GFCI receptacle or GFCI socket outlet if the supply circuit already includes a GFCI breaker on the main panel?
"Can you use a GFCI receptacle or GFCI socket outlet if the supply circuit already includes a GFCI breaker on the main panel" is probably the same question as "What if two GFC…I are in series in a circuit?" and the answer is that one GFCI will most likely trip earlier than the other to break the circuit. Which one will trip first depends on the actual difference in sensitivity between the two GFCIs. Leakage currents are measured in mA (1 mA = 1 thousandth of an Ampere) and GFCIs are designed to trip at a certain leakage current with a tolerance of say + or - 3%. So if the basic trip current was 20 milliamps one GFCI might trip at 19.4 mA and the other at 20.6 mA and they would both be within the design specification. The one that trips at 19.4 mA would be expected to trip first. Note: The latest types of Ground Fault Circuit Interruptor (GFCI) are also called Residual Current Devices (RCDs). IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB SAFELY AND COMPETENTLY REFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use an electrician's test meter having metal-tipped probes (not a simple proximity voltage indicator) to insure the circuit is, in fact, de-energized.