Dwelling Microwave Outlet

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zcanyonboltz

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Location
denver
We always put the microwave on a dedicated 20A circuit, does it state in the NEC that this is required, I'm looking through article 210 but don't see any specific requirement. Thanks
 
Dennis Alwon

Dennis Alwon

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Location
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It is not required by the nec but the installation instruction or the wattage of the unit will demand it.

Look at article 210.23(A)(2)

(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.
Click to expand...
 
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zcanyonboltz

Senior Member
Location
denver
jumper said:
Is it a microwave or a microwave/range hood that is cord connected?
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We have houses with both. Usually cord connected with an outlet for the microwave and a metal four square hard wired for the microwave/range hood. We dedicate all for uniform installation.

This was a question on my RW exam, read something like... a microwave in a dwelling shall be
a. dedicated 20A
b.dedicated 15A
c. supplied by one of small appliance circuits
d. on with kitchen counter circuit
I chose a. since thats what I've always done since I started in the trade with every company I've worked for but this is kind of a trick question. c. and d. are the same thing (small appliance circuit)
 
jumper

jumper

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3 Hr 2 Min from Winged Horses
zcanyonboltz said:
This was a question on my RW exam, read something like... a microwave in a dwelling shall be
a. dedicated 20A
b.dedicated 15A
c. supplied by one of small appliance circuits
d. on with kitchen counter circuit
I chose a. since thats what I've always done since I started in the trade with every company I've worked for but this is kind of a trick question. c. and d. are the same thing (small appliance circuit)
Click to expand...

As written it is poor question. The word "shall" throws any correct answer off because no more info is provided.

None of the answers satisfy the absolute word "shall" in the question.
 
U

user 100

Senior Member
Location
texas
jumper said:
As written it is poor question. The word "shall" throws any correct answer off because no more info is provided.

None of the answers satisfy the absolute word "shall" in the question.
Click to expand...

I agree-that "shall" had to have been a typo-the question makes no real sense as worded.
 
Dennis Alwon

Dennis Alwon

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Location
Chapel Hill, NC
Occupation
Retired Electrical Contractor
If you consider the micro/range hood over the range was a hood instead of a microwave then art. 422.16(B)(4) comes into play

(4) Range Hoods. Range hoods shall be permitted to be
cord-and-plug-connected with a flexible cord identified as
suitable for use on range hoods in the installation instructions
of the appliance manufacturer, where all of the following
conditions are met:
(1) The flexible cord is terminated with a grounding-type
attachment plug.
Exception: A listed range hood distinctly marked to identify
it as protected by a system of double insulation, or its
equivalent, shall not be required to be terminated with a
grounding-type attachment plug.
(2) The length of the cord is not less than 450 mm (18 in.)
and not over 900 mm (36 in.).
(3) Receptacles are located to avoid physical damage to the
flexible cord.
(4) The receptacle is accessible.
(5) The receptacle is supplied by an individual branch
circuit.
Click to expand...


If it is a microwave then the article mentioned above would come into play 210.23(A)(2)
 
mbrooke

mbrooke

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United States
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Technician
Dennis Alwon said:
If you consider the micro/range hood over the range was a hood instead of a microwave then art. 422.16(B)(4) comes into play




If it is a microwave then the article mentioned above would come into play 210.23(A)(2)
Click to expand...



True, but a hood is different then a micro.
 
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