Micro/rangehood circuit - Page 2 - Electrician Talk - Professional Electrical Contractors Forum

**Dennis Alwon** · 04-21-2011, 06:04 PM

Quote:

Originally Posted by nitro71

I think 210.23(B)(2) is fairly clear. It makes sense to me that you don't want to have over 50% of a circuit that is shared being utilized by one appliance.

So you never have a motor load that is 50% of the circuit? What is the big deal for an ignitor and perhaps a small circulation fan being on the microwave circuit. It is allowed on a sabc.

The catch will be 110.3 where the manufacturer specs an individual circuit.

nitro71 · 04-21-2011, 06:08 PM

Frigidaire says this model draws 10 amps @ 120v:

http://manuals.frigidaire.com/prodin...3085K_0211.pdf

nitro71 · 04-21-2011, 06:11 PM

Quote:

Originally Posted by Dennis Alwon

So you never have a motor load that is 50% of the circuit? What is the big deal for an ignitor and perhaps a small circulation fan being on the microwave circuit. It is allowed on a sabc.

The catch will be 110.3 where the manufacturer specs an individual circuit.

After checking out that Frigidaire specs for that gas range I'm not so sure that it should even be on a SABC really. As far as design goes. I was just talking about what code requires previously.

backstay · 04-21-2011, 06:15 PM

Quote:

Originally Posted by nitro71

After checking out that Frigidaire specs for that gas range I'm not so sure that it should even be on a SABC really. As far as design goes. I was just talking about what code requires previously.

I think 210.52(B)(2) Exception(2) is fairly clear.

**Dennis Alwon** · 04-21-2011, 06:20 PM

Nitro, I believe that range has a warming drawer with 1.2 kw electric heat.

nitro71 · 04-21-2011, 06:22 PM

Quote:

Originally Posted by Dennis Alwon

Nitro, I believe that range has a warming drawer with 1.2 kw electric heat.

It has something, that's for sure. I was thinking maybe a broiler? I didn't spend to much time staring at it. But it did get me to thinking that next time I hear "gas range" I'll consider if I should design in a dedicated circuit for it.

wil335 · 04-22-2011, 01:42 AM

Quote:

Originally Posted by jewalker88

My local AHJ stated that 110v outlet for gas range can't come off of the micro/range hood cir. I can't find a code to suport that. anyone have any Ideals?

Did you rough-in your range hood to be cord connected? Article 422.16 says that if your range hood is cord connected, it has to meet certain conditions. One of them is that range hood needs to be on and individual branch circuit (dedicated).

As far as the range hood/microwave oven argument, I think if it is located above the range and part of it's function is a range hood, it should follow the rules for range hoods.

**Dennis Alwon** · 04-22-2011, 07:18 AM

Quote:

Originally Posted by wil335

As far as the range hood/microwave oven argument, I think if it is located above the range and part of it's function is a range hood, it should follow the rules for range hoods.

I totally agree and I believe that is the intent.

KayJay · 04-24-2011, 08:03 AM

The installation manual for that Frigidaire range posted earlier specifies a "dedicated" branch circuit protected by a 15A CB or time delay fuse, so I don’t believe it could be connected to a 20A SABC, since IMO the manufacturers listed instructions would preclude the NEC.
It’s true that the term "individual branch circuit" is used in Article 100, but I think the definition of "dedicated" in the dictionary should still be able to be accepted without issue.

From the installation Manual:
Electric Requirements: A dedicated, properly grounded and
polarized branch circuit protected by a 15 amp. circuit breaker
or time delay fuse. See serial plate for proper voltage.

**Dennis Alwon** · 04-24-2011, 08:19 AM

My microwave range hood is 1300 watts so there is no reason a 15 amp circuit wouldn't work. I don't believe you are required to put it on a 15 amp circuit unless it is part of the listing instructions. But heck- everyone I ever wired was on a 20 amp OCPD....