Home Page link

Breaker size for oven

Home| Search | About
Login Password
Register Now! Lost Password?

Home Repair - - If it ain't broken, don't fix it. Otherwise look here. 

Page 1 of 4       1 2 3 > last >> Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Breaker size for oven BobH 11-03-2006
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by BobH on November 3, 2006, 12:35 pm


I have a 50-amp breaker on a circuit previously used for a double oven.
The new oven draws 3400 watts on 4000 watts at 240 volts, depending on
whether you believe a plate on the oven or the manual. I think that's
either 14.2 amps16.7 amps.

The question is whether I need to change the breaker, and, if so,
whether I need to also change the wire in the wall and ceiling, which
is 6-gauge aluminum. One person said a 50-amp breaker is too big
because the oven internal wiring could burn out before tripping the
breaker. I understand that logic, but if it's a legitimate concern then
why wouldn't this call for a 20-amp breaker? Nobody, I think, would use
a 20-amp breaker on an oven circuit -- always 30 or more.

What would you do, and why?


Electric Radiant Heat 468x60
Posted by JoeSpareBedroom on November 3, 2006, 12:42 pm


>I have a 50-amp breaker on a circuit previously used for a double oven.
> The new oven draws 3400 watts on 4000 watts at 240 volts, depending on
> whether you believe a plate on the oven or the manual. I think that's
> either 14.2 amps16.7 amps.
>
> The question is whether I need to change the breaker, and, if so,
> whether I need to also change the wire in the wall and ceiling, which
> is 6-gauge aluminum. One person said a 50-amp breaker is too big
> because the oven internal wiring could burn out before tripping the
> breaker. I understand that logic, but if it's a legitimate concern then
> why wouldn't this call for a 20-amp breaker? Nobody, I think, would use
> a 20-amp breaker on an oven circuit -- always 30 or more.
>
> What would you do, and why?
>

Are the wattage ratings for all 4 burners on high, and the oven in preheat
mode? Or...other?



Posted by Tom The Great on November 3, 2006, 1:20 pm



>I have a 50-amp breaker on a circuit previously used for a double oven.
>The new oven draws 3400 watts on 4000 watts at 240 volts, depending on
>whether you believe a plate on the oven or the manual. I think that's
>either 14.2 amps16.7 amps.
>
>The question is whether I need to change the breaker, and, if so,
>whether I need to also change the wire in the wall and ceiling, which
>is 6-gauge aluminum. One person said a 50-amp breaker is too big
>because the oven internal wiring could burn out before tripping the
>breaker. I understand that logic, but if it's a legitimate concern then
>why wouldn't this call for a 20-amp breaker? Nobody, I think, would use
>a 20-amp breaker on an oven circuit -- always 30 or more.
>
>What would you do, and why?

imho:

Check your 'cut sheet' for breaker requirements. Tyically the breaker
is designed for protecting the wires, but some manufactures want a
specific size breaker for their products.

later,

tom @ www.NoCostAds.com



Posted by avid_hiker on November 3, 2006, 1:38 pm



watts=current(amps) x voltage
current = watts / voltage so.........
current = 4000 / 240volts or 16.77777 amps

so you would need (two) 20 amp breakers at the panel .......one per
120volt line.

As long as you are going from a larger breaker to a smaller one, no
worry is needed for the wiring part. If you were increasing the
amps.....then the wiring would have to be a concern. A minimum of 12
gauge should be sufficient in your case at 4000 watts.

Here is a link that will help you..........

http://muextension.missouri.edu/explore/agguides/agengin/g01409.htm


Posted by Doug Miller on November 4, 2006, 8:59 am


>
>watts=current(amps) x voltage
>current = watts / voltage so.........
>current = 4000 / 240volts or 16.77777 amps
>
>so you would need (two) 20 amp breakers at the panel .......one per
>120volt line.

No, and no.

First, should be 30 amps. An electric stove meets the Code definition of a
"continuous load", and thus the circuit is limited to 80% of the breaker
rating. 80% of 20 amps is 16.0 amps. A 17-amp continous load requires the next
size up breaker, which is 30 amps.

Second, it must not be two separate breakers, but rather one double-pole
breaker.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

Page 1 of 4       1 2 3 > last >>
Similar ThreadsPosted
Breaker size for Welder August 9, 2007, 5:47 pm
What determines size of main breaker? May 7, 2007, 12:29 pm
Gas furnace electrical plug, What size breaker? November 28, 2005, 5:01 pm
Re: Trane -- House inspection -- Maximum Breaker Size February 12, 2006, 1:53 pm
how to determine correct 2 pole breaker size in amps (3rd and final pic) September 27, 2008, 7:36 pm
Neoprene Washers: Trade Size vs Actual Size July 5, 2005, 7:28 am
Re: Kenmore oven, oven/clock lights stay on. June 17, 2006, 2:17 am
Lumber Size = Penis Size September 14, 2006, 10:39 pm
GE oven lower bake element burned thru replaced element no power to oven April 12, 2006, 3:26 pm
A/C Unit Keeps Tripping Circuit Breaker - How to test breaker before calling repair man? August 25, 2005, 4:47 am

Contact Us | Privacy Policy

XML SitemapXML Sitemap