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Range: 30A cord w/ 30A circuit -- 6502 watts?

yeldogt

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Jan 2, 2012
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Not garage

... received the range that's going into our new build.

The range is listed as 6502 watts. I'm coming up wth 29.55 amps .. they say 27.1amps on the specification page ... 220 volts naturally.

They also have conflicting info on the website regarding the cord plug-- in one location 6240 is a cut off .. anything higher get a 50 amp cord/plug .. in another place they say it's Ok for a 30A cord up to 30 amps.

Using the 6240 cutoff -- mine would need the 50 amp. They shipped it with a 30A

What's the rule on this kind of stuff -- can you run a cord a full capacity or do you need that 80% stuff? It's a short distance from the range to the panel -- think I better run wire for 50 amp even if we only need 30A .. thoughts?

It's big.
 

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yeldogt

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It needs at least a 40A circuit. 27.1A X 1.25 = 33.875A

But, can it use the 30amp dryer cord they attached. If it needs the 40amps.. I'm going to need the 50 amp cord.

... one of the guys at technical is confused also ... that has me worried.
 
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MoonRise

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If the nameplate says 6502 watts, that is 27.1 amps x 240V (ignoring power factor and all that, which should be pretty minimal for an almost purely resistive load like a heating appliance).

6502 watts running on 220V means 29.6A (if the heating elements heat up enough to draw that juice).

Sure sounds like that appliance needs at least a 40 amp circuit (breaker, wall wiring, final cord from wall to appliance).
 

mm08822

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NEC 220.55 allows a 80% demand factor to be applied the the nameplate rating of a single cooking appliance in dwelling units. 210.19(A)(1)(b) permits the allowable load to be the load calculated with the demand factor applied and the minimum conductor size must not be less than this value.
6502w x .80 = 5202w
5202w/240v= 21.7A>>>#10 awg>>>30A. Nec 240.4(D)(7).
 
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yeldogt

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Jan 2, 2012
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If the nameplate says 6502 watts, that is 27.1 amps x 240V (ignoring power factor and all that, which should be pretty minimal for an almost purely resistive load like a heating appliance).

6502 watts running on 220V means 29.6A (if the heating elements heat up enough to draw that juice).

Sure sounds like that appliance needs at least a 40 amp circuit (breaker, wall wiring, final cord from wall to appliance).

How and why am I thinking 220v and not 240v .. yes 27.1 amps.
 
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yeldogt

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Joined
Jan 2, 2012
Messages
18,184
NEC 220.55 allows a 80% demand factor to be applied the the nameplate rating of a single cooking appliance in dwelling units. 210.19(A)(1)(b) permits the allowable load to be the load calculated with the demand factor applied and the minimum conductor size must not be less than this value.
6502w x .80 = 5202w
5202w/240v= 21.7A>>>#10 awg>>>30A. Nec 240.4(D)(7).

Thought there was something about 80% on a range/cooktop ... Thanks. Still may run the #8 ... I only need about 20'
 
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