How does 120v 4.5a = 3500w?

[david luchini]

I disagree.

TABLE 210.21(B)(2) Maximum Cord-and-Plug-Connected Load to Receptacle


-Hal

210.21(B)(2) applies to a branch circuit supplying two or more receptacles or outlets.

A single receptacle on a dedicated 15A branch circuit, used to supply the fryer, would be fine.

 

[hbiss]

Ok, how about 210.23(A)(1)

(1) Cord-and-Plug-Connected Equipment Not Fastened
in Place. The rating of any one cord-and-plug-connected
utilization equipment not fastened in place shall not exceed
80 percent of the branch-circuit ampere rating.

-Hal

 

[david luchini]

Ok, how about 210.23(A)(1)

(1) Cord-and-Plug-Connected Equipment Not Fastened
in Place. The rating of any one cord-and-plug-connected
utilization equipment not fastened in place shall not exceed
80 percent of the branch-circuit ampere rating.

-Hal

Again, that is for a branch circuit supplying two or more receptacles or outlets.

More relevant would be 210.22...

An individual branch circuit shall be permitted to supply any load for which it is rated.

Edit: revised code section

 

[hbiss]

"The rating of any one cord-and-plug-connected
utilization equipment not fastened in place shall not exceed
80 percent of the branch-circuit ampere rating."

Where do you see anything about the number of receptacles on the circuit?

I was taught and always went by the 80% rule- any cord and plug connected equipment can't exceed 80% of the branch circuit ampacity. It must have come from someplace.

-Hal

 

[david luchini]

"The rating of any one cord-and-plug-connected
utilization equipment not fastened in place shall not exceed
80 percent of the branch-circuit ampere rating."

Where do you see anything about the number of receptacles on the circuit?

Here

210.23 Permissible Loads, Multiple-Outlet Branch Circuits.

A branch circuit supplying two or more outlets or receptacles shall supply only the loads specified according to its size as specified in 210.23(A) through 210.23(D)

I was taught and always went by the 80% rule- any cord and plug connected equipment can't exceed 80% of the branch circuit ampacity. It must have come from someplace.

-Hal

That is not quite correct, as I have pointed out.

 

[hbiss]

In my handbook I see this note:

According to 210.23, an individual (single-outlet) branch
circuit can supply any load within its rating.

So apparently I'm not the only one that interprets the Article to include dedicated circuits feeding single receptacles as they found it necessary to make that distinction.

-Hal

 

[hbiss]

This should also put an end to the confusion as to why those manufacturers put 15A plugs on equipment that draws 14.85A. As long as you have a dedicated 15A circuit and receptacle for it, it's OK.

-Hal

 

[topgone]

This should also put an end to the confusion as to why those manufacturers put 15A plugs on equipment that draws 14.85A. As long as you have a dedicated 15A circuit and receptacle for it, it's OK.

-Hal

I'd rather decide on my better judgment than place my bet on codes. The code is a minimum standard and I find it comfy exceeding what the code says is allowed.

 

[tortuga]

This is a gem:

Perhaps this gem from another forum (OWWM, Old Wood Working Machines) applies.

OWWM Rule No. 1: The seller, standing in front of the machine with access to all sides and in full daylight, will not/cannot describe the machine correctly.

It's a bit late but...

:thumbsup:

 

[Adamjamma]

Well, if we have anything to do with it, at 14.58A each tank requires a dedicated 20A circuit. For a 15A circuit 14.58 is well over 80%. Further, each cord should have a 5-20 plug.

I've long wondered how they get away with 5-15 plugs, and every manufacturer that makes equipment that scrapes by at slightly less than 15A puts a 15A plug on their equipment. I theorize that it's to make it less of a problem to use in existing kitchens that have 20A circuits with 15A receptacles. It will work- until you plug something else into the circuit. Then again that two tank fryer must be a real joy for some people when they plug both line cords into a duplex receptacle. :jawdrop:

I wonder how they get UL approval. I have found some equipment that says to use a dedicated 20A circuit for their 15A plug.

If you have a 5-20 plug it requires a 5-20 receptacle. It needs to be single and on a dedicated circuit because two of anything with a 5-20 plug is going to be more than 20A.


-Hal

But they act just like water heaters... the maximum heat is only applied to get to temperature... thermostat keeps temperature within a range, and in normal operation, the actual usage during say lunch time, making frys all the time, is around ten amps... in afternoon lull, the wattage need is around seven amps... only pulls full amps when cold in morning or when oil is old and loads of crap in it... keeping oil from making temp.
Unless they have changed since I worked at Hardees, which I doubt...