Another IT mistake?

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shortcircuit1

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Hello,

I was going through GE Electric Range in the link below and interestingly for both 208 & 240V they have the same breaker rating although they have different kW for both the voltages.They mentioned 9.1kW for 208v and 12.1kW for 240V. If we do the math for the 208v then 9100/208=43.75A for which we have to use either 45A or 50A. I dont know why they specified 40A breaker ad even for thee 240V 12100/240=50.16A which we have to go to the next standard breaker size...Am i missing something for this range?

http://products.geappliances.com/appliance/gea-specs/JB450DFWW
 
Bad info, for sure.
Not sure it's right to blame IT. Places I've worked had business users maintaining web content. IT handled the applications and infrastructure.
 
The different kW ratings are for the same elements at 208V vs 240V.

There's probably some internal thermostat limiter that prevents everything from coming on all at once.
 
shortcircuit1 said:
Hello,

I was going through GE Electric Range in the link below and interestingly for both 208 & 240V they have the same breaker rating although they have different kW for both the voltages.They mentioned 9.1kW for 208v and 12.1kW for 240V. If we do the math for the 208v then 9100/208=43.75A for which we have to use either 45A or 50A. I dont know why they specified 40A breaker ad even for thee 240V 12100/240=50.16A which we have to go to the next standard breaker size...Am i missing something for this range?

http://products.geappliances.com/appliance/gea-specs/JB450DFWW
Click to expand...

The resistance of the elements is the same at either voltage so at the higher voltage the current will increase or be higher. The branch circuit is calculated based on Table 220.55 not just dividing the Kw rating by the applied voltage.
 
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