Vevor Griddle

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3:23 Electric

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Location
Alabama
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Electrician
I have a griddle, the nameplate states that it uses 3.2KW on 120V power. I am thinking I need to install, a 35A breaker, 8AWG wire, and a 40 amp flush mount plug to service the unit. Does this sound correct to you all? Thanks.
 

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
That's a relatively large load for 120v. Can it be converted to 240v or 208v?

At 26.6a, I would think a 30a circuit would be adequate, but your numbers seem acceptable.
 

infinity

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New Jersey
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Journeyman Electrician
I have a griddle, the nameplate states that it uses 3.2KW on 120V power. I am thinking I need to install, a 35A breaker, 8AWG wire, and a 40 amp flush mount plug to service the unit. Does this sound correct to you all? Thanks.
Does it come with it's own cord and plug? If so my guess is that a 30 amp circuit is what's required. This a Vevor griddle correct? I see that they're listed as 110 volts which would mean a higher output/current on 120 volts.

 

Little Bill

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Tennessee NEC:2017
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Does it come with it's own cord and plug? If so my guess is that a 30 amp circuit is what's required. This a Vevor griddle correct? I see that they're listed as 110 volts which would mean a higher output/current on 120 volts.

The Q&A on the spec page says the unit does not come with a plug and that an "air leakage switch" should be installed. I've never heard the term "air leakage" switch, I have heard of just an air switch, which is mostly used on garbage disposals.
Another thing I noted was the spec sheet said 3200W @ 110V, then went on to say it used 31A. My math says 3200W @ 110V = 29.09A
 

infinity

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Another thing I noted was the spec sheet said 3200W @ 110V, then went on to say it used 31A. My math says 3200W @ 110V = 29.09A
Could be they're factoring in use on a 120 volt system. I didn't do the math but the higher voltage would cause a higher current draw.
 

3:23 Electric

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Location
Alabama
Occupation
Electrician
It comes with a cord, but no plug on the end. I agree
That's a relatively large load for 120v. Can it be converted to 240v or 208v?

At 26.6a, I would think a 30a circuit would be adequate, but your numbers seem acceptable.
It does not state that it will work off of 240/208V. I was concerned about using a 30 amp breaker because, I didn't want to exceed the 80% rule.
 

3:23 Electric

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Location
Alabama
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Electrician
The Q&A on the spec page says the unit does not come with a plug and that an "air leakage switch" should be installed. I've never heard the term "air leakage" switch, I have heard of just an air switch, which is mostly used on garbage disposals.
Another thing I noted was the spec sheet said 3200W @ 110V, then went on to say it used 31A. My math says 3200W @ 110V = 29.09A
Yeah, I've never heard of that air leakage switch either, I read that. This griddle is in a convenience store kitchen. They had it sitting there with a 15amp plug on the end of it and was intending to use it on a 20amp 120v circuit. I told them the circuit isn't large enough and we will have to upsize the wire and the breaker, along with the plug on the end of the griddle cord and the plug in the wall.
 

3:23 Electric

Member
Location
Alabama
Occupation
Electrician
Does it come with it's own cord and plug? If so my guess is that a 30 amp circuit is what's required. This a Vevor griddle correct? I see that they're listed as 110 volts which would mean a higher output/current on 120 volts.

yes it is a vevo Griddle, model number: LD-610
 

infinity

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Location
New Jersey
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It comes with a cord, but no plug on the end. I agree

It does not state that it will work off of 240/208V. I was concerned about using a 30 amp breaker because, I didn't want to exceed the 80% rule.
There is no 80% rule for this appliance. Since it has a thermostat it will not remain on at full output for 3 continuous hours and is therefore not a continuous load. If it draws in excess of 30 amps @ 120 volts you will need a 40 amp circuit with a 50 amp receptacle and plug.
 

3:23 Electric

Member
Location
Alabama
Occupation
Electrician
There is no 80% rule for this appliance. Since it has a thermostat it will not remain on at full output for 3 continuous hours and is therefore not a continuous load. If it draws in excess of 30 amps @ 120 volts you will need a 40 amp circuit with a 50 amp receptacle and plug.
That's good advice, thanks!
 

Todd0x1

Senior Member
Location
CA
Nema 5-30 (straight blade not twistlock) is the thing to use here so the cord hangs straight down the wall.
 

hbiss

EC, Westchester, New York NEC: 2014
Location
Hawthorne, New York NEC: 2014
Occupation
EC
That's a real oddball to operate off of 110 volts at that wattage and no UL. I would tell him to sell it on eBay and get a real griddle made to be used here before he burns the store down.


-Hal
 

Ragin Cajun

Senior Member
Location
Upstate S.C.
Sounds like a real C3 (cheap china c$ap) piece of junk. Tell them to get a real piece of cooking equipment.
120V only available? What kind of service is this?
I personally would pass this liability mess a wide pass.
 

LarryFine

Master Electrician Electric Contractor Richmond VA
Location
Henrico County, VA
Occupation
Electrical Contractor
Another thing I noted was the spec sheet said 3200W @ 110V, then went on to say it used 31A. My math says 3200W @ 110V = 29.09A
The rated voltage and power let you calculate the resistance, which you then use to find the current at the voltage the appliance will actually see.

3200 watts / 110 volts = 29 amps
110 volts / 29 amps = 3.8 ohms
120 volts / 3.8 ohms = 31.6 amps
120 volts * 31.6 amps = 3792 watts

That's quite a bit more than the rated power. (Did I make an error?)
 

Little Bill

Moderator
Staff member
Location
Tennessee NEC:2017
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Semi-Retired Electrician
The rated voltage and power let you calculate the resistance, which you then use to find the current at the voltage the appliance will actually see.

3200 watts / 110 volts = 29 amps
110 volts / 29 amps = 3.8 ohms
120 volts / 3.8 ohms = 31.6 amps
120 volts * 31.6 amps = 3792 watts

That's quite a bit more than the rated power. (Did I make an error?)
Looks right, provided the actual "R" is that.
 

Tulsa Electrician

Senior Member
Location
Tulsa
Occupation
Electrician
I come up
31.735 amps,
3808.20 watts
Did it two different ways.

120/((110*110)/3200)= 31.735

120/110= 1.0909*1.0909= 1.19002681*3200=3808.20
/120=31.735

Math fun 😊
 
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