Small Appliance Branch Circuits

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I think you are asking if you have to add load for the fridge, in addition to the 3000 VA that you add for the SA circuits. My answer to that is "no."
 
My answer is the same.

I would count the following loads as being separate from the 3000 VA SA circuit loads: Range, dishwasher, trash compactor, and point-of-demand water heater. I would not count the fridge, the microwave, the toaster, the toaster oven, or the radio.

Others may do it differently. So let's see if anyone chimes in with another answer.
 
77401 said:
Our AHJ requires builtin Microwaves on dedicated circuit.
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That tells me that the breaker that feeds this load will feed no other load. But it calls to mind two questions: (1) Is that circuit, by definition, an SA circuit? (2) Do you (or does yhour AHJ require you to) include some extra VA for the microwave (i.e., in addition to the 3000 VA for the SA circuits)?
 
Re: Small Appliance Branch Circuits

mtnelectrical said:
When doing load calc. is the refrigerator included in the 2 S A ckt required?
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I made a proposal for the 2008 cycle to clarify the addition of extra circuits installed in the small appliance areas of a dwelling unit and here is where it stands as of now.

2-319 Log #606 NEC-P02 Action: Accept in Principle
(220.52(A))
_____________________________________________________________
Submitter: Joseph Michael Whitt, JW Electric
Panel Meeting Action: Accept in Principle
Revise the words in the first sentence of 220.52(A) "required by 210.11(C)(1)" to "as covered by 210.11(C)(1)".
Panel Statement: The panel has revised the text to remove the words "required" and simply reference the coverage of the provision in 210.11(C)(1).
___________________________________________________________

As far as the refrigeration equipment is concerned we find the answer in the exception to 220.52
Exception: The individual branch circuit permitted by 210.52(B)(1), Exception No. 2, shall be permitted to be excluded from the calculation required by 220.52.
:)
 
The only time I can think of a microwave being a part of the load calculation is if it is a permanently installed piece of equipment. In that case, it could not be supplied from a SABC (unless the cord was literally plugged into a countertop receptacle, which is unlikely).

So:

  • If the micro is sitting on the countertop, and can be moved like a portable appliance, then it is included in the 1500VA for one of the SABCs.
  • If the micro is permanently installed, then it must be counted in the load calculation. In addition, the circuit would need to conform to 210.23(A)(2).

77401 said:
Our AHJ requires builtin Microwaves on dedicated circuit.
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Is this adopted into code, or a lazy swing at enforcing 210.23(A)(2)?

Do they prohibit you from powering a gas-range 120V receptacle for the igniter from this circuit? I'd pitch a fit. :D
 
tonyi said:
FWIW, Palm beach county had some amendments to 99' requiring a m/wave on its own branch.
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Thanks for the link, but I'll take your word for it. :D

mtnelectrical said:
Well, but it doesn't need to be calculated as additional load. IMHO :?
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Why not? :twisted:

It may seem a little unconventional, but I don't see an exception for it... :)
 
Okay, I'll settle this:

If adding the built-in M/W load would take you to the next amperage level, then you don't have to count it. If not, then you do.


How's that? :wink:
 
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