Receptaclt rating for Residential

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cyado1607

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in NEC 210.21 B.3 it states: where connected to a branch sircuit supplying two or more receptacles or outlets, receptacles ratings shall conform to the values listed in Table 210.21b3

Now is one duplex receptacle counted as 2 outlets (one on top and one on bottom?) or is that considered 1 outlet?

thanks
 
sounds more like political jargon :grin: one is two

(just messin with you ):smile:
 
cyado1607 said:
Now is one duplex receptacle counted as 2 outlets (one on top and one on bottom?) or is that considered 1 outlet?
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It is not my intent to pick on you but your terminology is incorrect. :)

A duplex receptacle is two receptacles. If it is an opening that will accept a single yoke, then it is is two receptacles in an outlet or more technically a receptacle outlet. The opening is an outlet and can be either a lighting outlet or receptacle outlet. The Code definition of Outlet, "A point on the wiring system at which current is taken to supply utilization equipment." The Code definition of Receptacle, "A receptacle is a contact device installed at the outlet for the connection of an attachment plug. A single receptacle is a single contact device with no other contact device on the same yoke. A multiple receptacle is two or more contact devices on the same yoke."
 
15 amp recepticles on 20 amp circuit

15 amp recepticles on 20 amp circuit

Dose anyone understand the reasoning behind this. My thought is that 15 amp recepticles would create a weak point on 20 amp circuit.

Thanks
 
ssadvis said:
Dose anyone understand the reasoning behind this. My thought is that 15 amp recepticles would create a weak point on 20 amp circuit.

Thanks
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A 15-a cord cap is the largest you can plug into it. And it's rare to find a household appliance that actually draws 15 amps.
 
ssadvis said:
Dose anyone understand the reasoning behind this. My thought is that 15 amp recepticles would create a weak point on 20 amp circuit.
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That's because you're under the impression that the receptacle's rating is about the current capacity of the metal parts. Well, it ain't. Most receptacles of the same grade use the same metal parts for 15- and 20-amp devices.

Ever looked at the inside of 30- and 50-amp receptacles, or see the 30/50-amp plugs that you move the blades for your use? They're the same, except for the slots. A receptacle's slot shape is a plug-rejection characteristic.
 
ssadvis said:
Dose anyone understand the reasoning behind this. My thought is that 15 amp receptacles would create a weak point on 20 amp circuit.

Thanks
Click to expand...

When using the feed through screws on the device the feed through rating is still 20 amps. Even on a 15 amp duplex receptacle.
 
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