commercial deep fryer

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cjnickjr said:
The disc is OK looking at 422.34 and from 210.20(A) I see an 80A OCPD (57 x 1.25= 71.25A) provided 422.11(A) does not come into play. Are the conductors large enough to accomodate this?
Possibly the breaker broke down from the excessive heat , faulted and allowed larger and /or imbalanced currents on the line(s) leading to the cord and plug failure.
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I'm not sure if this fryer needs to be considered as a continuos load. Do they make receptacles with a higher rating than 60 amp? I haven't seen one.
 
IMO this is not a continuous load. And yes they do make receptacles larger than 60 amps. Is the cord and plug installed by the manufacturer?
 
infinity said:
IMO this is not a continuous load. And yes they do make receptacles larger than 60 amps. Is the cord and plug installed by the manufacturer?
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No it wasn't a manufactured cord. So according to 210.21(B)(1), if I were to have it on a 70 or 80 amp circuit then the receptacle needs to be the same size ampacity as the bracnch circuit size.
 
It may be a continuous load as being a commercial fryer it is likley to be used for 3 hours or more. At full load? not sure. It depends on how busy they are I guess. But seeing that the plug melted it would be a good guess.
 
smithacetech said:
It may be a continuous load as being a commercial fryer it is likley to be used for 3 hours or more. At full load? not sure. It depends on how busy they are I guess. But seeing that the plug melted it would be a good guess.
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Just because the unit is on for more than 3 hours, that doesn't necessarily make it a continuous load. Most heating devices cycle on and off to keep at a constant temperature. If the heating element cycled off for one second every 180 minutes the load would be non-continuous.
 
Was the plug stabbed or twist-lock.Ithink twist-lock gives a better connection and less likely to be half in and half out. Maybe fryer is pulled out to be cleaned and not plugged in all the way.
 
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