stove top

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wireman3736

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Minimum size circuit for a stove top, A 240 volt 6.4kw, 26.7 amps. would this be allowed to be fed with #10 romex on a 30 amp breaker in a dwelling? Direct wire.
 
Larry
Heh! My 220 usually stops during a thunderstorm! (then I get to crank up the generator!!!!) :)

Sorry, I should have referred to 220.55 ('05 NEC).

Wireman3736
I agree with bphgravity. Looks like it will work based on what you stated.
 
wireman, As far as direct wiring goes, article 422.16(B)3 allows you to permanetly wire or if you choose, you can cord and plug.
Rick
 
I thought I could but then I got thinking,(thats my first mistake):rolleyes: , Then I got looking at 210.23(B), and then table 210.24. even though it's a hard wired piece of equipment don't I have to apply the 80% max. load in a dwelling? I thought 220.55 is for load calculations and not conducter and ocpd sizing.
 
wireman, If you cord and plug this cooktop, then you'll have to go with the 80% rating as in 210.23(B).That will mean upsizing to a 35a breaker and #8 awg if useing rx.If you hardwire then your ok with the 30a circuit. Table 220.55 is allowed for sizing branch circuits as per 210.21(B)4.In your case you need to read note 4 of table 220.55 for a single cooktop.(name plate rating).
Rick
 
RUWired said:
wireman, If you cord and plug this cooktop, then you'll have to go with the 80% rating as in 210.23(B).That will mean upsizing to a 35a breaker and #8 awg if useing rx.If you hardwire then your ok with the 30a circuit. Table 220.55 is allowed for sizing branch circuits as per 210.21(B)4.In your case you need to read note 4 of table 220.55 for a single cooktop.(name plate rating).
Rick
Click to expand...

I read 210.21(B)(4) and this is talking about the range receptacle rating,
I don't know if this means the circuit rating, just trying to make sure.:confused:
 
wireman3736 said:
I read 210.21(B)(4) and this is talking about the range receptacle rating,
I don't know if this means the circuit rating, just trying to make sure.:confused:
Click to expand...
The 2005 NEC doesn't mention receptacles in table 220.55 Note 4. It specifically states that it is permissible to calculate the branch circuit "LOAD" for a counter mounted cooking unit by the nameplate rating of the appliance. I don't have my 2002 with me right now.
steve
 
hillbilly said:
The 2005 NEC doesn't mention receptacles in table 220.55 Note 4. It specifically states that it is permissible to calculate the branch circuit "LOAD" for a counter mounted cooking unit by the nameplate rating of the appliance. I don't have my 2002 with me right now.
steve
Click to expand...

I don't think it says any thing about wire size or ocpd for a branch circuit.
 
RUWired said:
wireman, If you cord and plug this cooktop, then you'll have to go with the 80% rating as in 210.23(B).That will mean upsizing to a 35a breaker and #8 awg if useing rx.If you hardwire then your ok with the 30a circuit. Table 220.55 is allowed for sizing branch circuits as per 210.21(B)4.In your case you need to read note 4 of table 220.55 for a single cooktop.(name plate rating).
Rick
Click to expand...
My computer is acting funny please for give this post, 210.23(b) only applies when more than one outleet or receptacle is supplied , this is an idividual branch circuit and can supply any load for which it is rated.
 
M. D. said:
My computer is acting funny please for give this post, 210.23(b) only applies when more than one outleet or receptacle is supplied , this is an idividual branch circuit and can supply any load for which it is rated.
Click to expand...

I'm going to agree with that now that I'm smarter. ;)
Thanks
 
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