Dedicated Ciruit For AC And Single Receptacle... - Electrical - DIY Chatroom Home Improvement Forum


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Closed Thread
 
Thread Tools Display Modes
Old 05-02-2013, 01:43 PM   #1
Member
 
Join Date: Jan 2011
Posts: 186
Rewards Points: 150
Default

Dedicated Ciruit for AC and single receptacle...


Just want to make sure it is ok to use single receptacles on my dedicated cirucits for my ACs. I have 3 in wall units all on their own circuits. 1 20A and 2 15A circuits.
Should they all have the single receptacles as in the image? Or does it matter?
Attached Images
 

Advertisement

zephed666 is offline  
Old 05-02-2013, 01:50 PM   #2
Member
 
Join Date: Nov 2009
Location: Albany, GA
Posts: 295
Rewards Points: 250
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by zephed666 View Post
Just want to make sure it is ok to use single receptacles on my dedicated cirucits for my ACs. I have 3 in wall units all on their own circuits. 1 20A and 2 15A circuits.
Should they all have the single receptacles as in the image? Or does it matter?

Your picture is of a 15A receptacle. This is acceptable for the 15A circuits. If you have only a single receptacle on a branch circuit (not a duplex receptacle), the rating of the receptacle needs to match the rating of the circuit. You would need a 20A receptacle for the 20A circuit, or change the breaker to 15A.

This assumes, of course, that all of the wiring is properly sized for the individual circuits.

Also, the image is not a tamper-resistant receptacle. Depending on your code cycle, you might need TR receptacles (I think they are a good idea regardless of the code cycle).

Advertisement

clashley is offline  
Old 05-02-2013, 02:07 PM   #3
Member
 
Join Date: Jan 2011
Posts: 186
Rewards Points: 150
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by clashley View Post
Your picture is of a 15A receptacle. This is acceptable for the 15A circuits. If you have only a single receptacle on a branch circuit (not a duplex receptacle), the rating of the receptacle needs to match the rating of the circuit. You would need a 20A receptacle for the 20A circuit, or change the breaker to 15A.

This assumes, of course, that all of the wiring is properly sized for the individual circuits.

Also, the image is not a tamper-resistant receptacle. Depending on your code cycle, you might need TR receptacles (I think they are a good idea regardless of the code cycle).

I just grabbed the pciture for an example. I have the correct receptacles on the lines. Not TR though.
Just wanted to make sure that ehy could be single. Can you put a duplex on there or bad idea?
zephed666 is offline  
Old 05-02-2013, 02:16 PM   #4
JW
 
mm11's Avatar
 
Join Date: Apr 2013
Location: Maryland
Posts: 214
Rewards Points: 194
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by zephed666 View Post
I just grabbed the pciture for an example. I have the correct receptacles on the lines. Not TR though.
Just wanted to make sure that ehy could be single. Can you put a duplex on there or bad idea?
If a duplex receptacle is used, the circuit is no longer an individual branch circuit.

There could be another cord and plug connected load, in addition to the A/C load, if using a duplex.
mm11 is offline  
Old 05-02-2013, 02:17 PM   #5
Member
 
Join Date: Jan 2011
Posts: 186
Rewards Points: 150
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by mm11 View Post
If a duplex receptacle is used, the circuit is no longer an individual branch circuit.

There could be another cord and plug connected load, in addition to the A/C load, if using a duplex.

So stick with the single receptacles? I just wanted to make sure it's right.
zephed666 is offline  
Old 05-02-2013, 02:28 PM   #6
Member
 
jproffer's Avatar
 
Join Date: Mar 2005
Location: Chester, IL
Posts: 1,321
Rewards Points: 548
Default

Dedicated Ciruit for AC and single receptacle...


I'd stick with the single, just remember (as clashley said) you'll have to use 20A receptacles on the 20A circuits....but it sounds like you've already got that covered.
jproffer is offline  
Old 05-03-2013, 10:36 PM   #7
Electrical Contractor
 
Philly Master's Avatar
 
Join Date: Mar 2013
Location: SE PA
Posts: 1,138
Rewards Points: 502
Default

Dedicated Ciruit for AC and single receptacle...


a 20 amp circuit can use either a 20 outlet or and 15 amp outlet ...

a 15 amp circuit can only use a 15 amp outlet ...


nec Table 210.21(B)(3)
__________________
Philadelphia Master Electrician-Generac Dealer
Philly Master is offline  
Old 05-04-2013, 01:56 AM   #8
Member
 
Join Date: Oct 2010
Location: Central Indiana (USA)
Posts: 1,318
Rewards Points: 500
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by Philly Master View Post
a 20 amp circuit can use either a 20 outlet or and 15 amp outlet ...

a 15 amp circuit can only use a 15 amp outlet ...


nec Table 210.21(B)(2)
210.21 (B) (1). Regarding the use of singles, requires a receptacle not less than the branch circuit??

Edit: which means that a 15-a Single cannot be put on a 20a circuit.
__________________
Installation is the Reverse of Removal.

Last edited by sirsparksalot; 05-05-2013 at 12:13 AM. Reason: Fixed NEC Citation
sirsparksalot is offline  
The Following User Says Thank You to sirsparksalot For This Useful Post:
Philly Master (05-04-2013)
Old 05-04-2013, 06:30 AM   #9
Electrical Contractor
 
Philly Master's Avatar
 
Join Date: Mar 2013
Location: SE PA
Posts: 1,138
Rewards Points: 502
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by sirsparksalot View Post
210.20 (B) (1). Regarding the use of singles, requires a receptacle not less than the branch circuit??
Table 210.21(B)(2) ..


and ... I do not have the book here inside and i cannot find 210.20(B)(1) i could only find .. 210.20(B)

(B) Conductor Protection. Conductors shall be protected in accordance with 240.4. Flexible cords and fixture wires shall be protected in accordance with 240.5.


you may have meant 210.21 (B) (1)

anyway all the more reason to use a Duplex outlet but it would need to comply with ...210.23(A)(2)

210.23 Permissible Loads. In no case shall the load exceed the branch-circuit ampere rating. An individual branch circuit shall be permitted to supply any load for which it is rated. A branch circuit supplying two or more outlets or receptacles shall supply only the loads specified according to its size as specified in 210.23(A) through (D) and as summarized in 210.24 and Table 210.24.


(A) 15and 20-Ampere Branch Circuits. A 15or 20-ampere branch circuit shall be permitted to supply lighting units or other utilization equipment, or a combination of both, and shall comply with 210.23(A)(1) and (A)(2).
Exception: The small-appliance branch circuits, laundry branch circuits, and bathroom branch circuits required in a dwelling unit(s) by 210.11(C)(1), (C)(2), and (C)(3) shall supply only the receptacle outlets specified in that section.


(1) Cord-and-Plug-Connected Equipment Not Fastened in Place. The rating of any one cord-and-plug-connected utilization equipment not fastened in place shall not exceed 80 percent of the branch-circuit ampere rating.

(2) Utilization Equipment Fastened in Place. The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed 50 percent of the branchcircuit ampere rating where lighting units, cord-and-plugconnected utilization equipment not fastened in place, or both, are also supplied.
__________________
Philadelphia Master Electrician-Generac Dealer

Last edited by Philly Master; 05-04-2013 at 06:34 AM.
Philly Master is offline  
The Following User Says Thank You to Philly Master For This Useful Post:
sirsparksalot (05-04-2013)
Old 05-04-2013, 07:33 AM   #10
Master Electrician
 
Join Date: Nov 2008
Location: Northern Virginia
Posts: 515
Rewards Points: 292
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by gregzoll View Post
That outlet is acceptable on a 20amp circuit.
That receptacle is not acceptable on a 20A circuit if it is the only outlet on the circuit, as was asked by the OP.

Mark
__________________
Licensed Master Electrician
Commonwealth of Virginia
busman is offline  
The Following 3 Users Say Thank You to busman For This Useful Post:
electures (05-05-2013), Jim Port (05-04-2013), stickboy1375 (05-04-2013)
Old 05-04-2013, 07:44 AM   #11
E2 Electrician
 
stickboy1375's Avatar
 
Join Date: Apr 2012
Location: Litchfield, CT
Posts: 5,163
Rewards Points: 2,118
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by gregzoll View Post
That outlet is acceptable on a 20amp circuit. You just cannot put a 20 amp outlet on a 15 amp circuit, due to if someone plugged in a 20 amp appliance with the side turned prong, it would overload the 15 amp breaker, and trip it.

If it is an individual branch circuit and using a single receptacle, then he can use a 20amp receptacle on a 15 amp protected circuit.
stickboy1375 is offline  
The Following User Says Thank You to stickboy1375 For This Useful Post:
sirsparksalot (05-04-2013)
Old 05-04-2013, 09:37 AM   #12
Licensed electrician
 
Join Date: Sep 2007
Location: Maryland
Posts: 8,004
Rewards Points: 2,806
Default

Dedicated Ciruit for AC and single receptacle...


From 210.21 for individual receptacles.

(B) Receptacles.
(1) Single Receptacle on an Individual Branch Circuit.
A single receptacle installed on an individual branch circuit
shall have an ampere rating not less than that of the branch
circuit.
Exception No. 1: A receptacle installed in accordance
with 430.81(B).
Exception No. 2: A receptacle installed exclusively for the
use of a cord-and-plug-connected arc welder shall be permitted
to have an ampere rating not less than the minimum
branch-circuit conductor ampacity determined by 630.11(A)
for arc welders.


(B)(1) would allow the use of a 20 amp slot receptacle on a 15 amp circuit.
__________________
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
Jim Port is online now  
The Following 4 Users Say Thank You to Jim Port For This Useful Post:
busman (05-04-2013), electures (05-05-2013), sirsparksalot (05-04-2013), stickboy1375 (05-04-2013)
Old 05-04-2013, 10:16 AM   #13
E2 Electrician
 
stickboy1375's Avatar
 
Join Date: Apr 2012
Location: Litchfield, CT
Posts: 5,163
Rewards Points: 2,118
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by Philly Master View Post
a 20 amp circuit can use either a 20 outlet or and 15 amp outlet ...

a 15 amp circuit can only use a 15 amp outlet ...


nec Table 210.21(B)(3)
Unless of course were talking about a single receptacle and a individual branch circuit.
stickboy1375 is offline  
The Following User Says Thank You to stickboy1375 For This Useful Post:
Philly Master (05-04-2013)
Old 05-04-2013, 05:45 PM   #14
Electrical Contractor
 
Philly Master's Avatar
 
Join Date: Mar 2013
Location: SE PA
Posts: 1,138
Rewards Points: 502
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by zephed666 View Post
I just grabbed the pciture for an example. I have the correct receptacles on the lines. Not TR though.
Just wanted to make sure that ehy could be single. Can you put a duplex on there or bad idea?
OP asked a second question ..post #3 ..in addition to the first one ....

I should have "quoted" it in my response sorry for the CORNfusion ....
__________________
Philadelphia Master Electrician-Generac Dealer
Philly Master is offline  
Old 05-04-2013, 06:40 PM   #15
E2 Electrician
 
stickboy1375's Avatar
 
Join Date: Apr 2012
Location: Litchfield, CT
Posts: 5,163
Rewards Points: 2,118
Default

Dedicated Ciruit for AC and single receptacle...


Quote:
Originally Posted by zephed666
Just want to make sure it is ok to use single receptacles on my dedicated cirucits for my ACs. I have 3 in wall units all on their own circuits. 1 20A and 2 15A circuits.
Should they all have the single receptacles as in the image? Or does it matter?
Yes, and you can use 20 amp single receptacles on all (3) units.

Advertisement

stickboy1375 is offline  
Closed Thread


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
3 way, 4 way, Single Pole/3-Way Combinations slash5bmw Electrical 5 06-22-2010 08:21 AM
Replacing duplex receptacle with nighlight - wiring question Rabu Electrical 6 05-02-2010 08:51 PM
Three hot wires coming into a receptacle? Jeff DIY Electrical 10 10-07-2009 02:35 PM
Wiring A Ceiling Fan, Receptacle, and Outside Light merlin6984 Electrical 9 03-26-2009 10:52 PM
single gang single pole switch on fan fabian Electrical 14 03-05-2009 02:11 AM




Top of Page | View New Posts