This job we are doing has 2 - 208V - single phase - 30A counter mounted cooking units in a commercial kitchen. They want to run 1 - 60 amp circuit to a j-box 80' away from the panel and then feed each cooking unit from the j-box. I looked in the NEC and cant find where this sort of tap is legal. Anybody no if it is? Thanks.
2 Ovens , 1 circuit
- Thread starter ih8shorts
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bphgravity
Senior Member
- Location
- Florida
Re: 2 Ovens , 1 circuit
See section 210.19(A)(3) and its exception. You are limited to a 50-ampere branch circuit. If you have a combined load exceeding 50-ampere, then I feel you will be required to run an individual circuits to each.
See section 210.19(A)(3) and its exception. You are limited to a 50-ampere branch circuit. If you have a combined load exceeding 50-ampere, then I feel you will be required to run an individual circuits to each.
bphgravity
Senior Member
- Location
- Florida
Re: 2 Ovens , 1 circuit
No, you are correct. 210.19(A)(3) only applies to household cooking equipment. I suppose 210.19(A)(4) Exception No. 1 (c) could apply. You are still limited to a 50-ampere b.c.
In my opinion, you need two 30-ampere branch circuits. I don't believe a tap rule exists for your specific loads.
No, you are correct. 210.19(A)(3) only applies to household cooking equipment. I suppose 210.19(A)(4) Exception No. 1 (c) could apply. You are still limited to a 50-ampere b.c.
In my opinion, you need two 30-ampere branch circuits. I don't believe a tap rule exists for your specific loads.
jtester
Senior Member
- Location
- Las Cruces N.M.
Re: 2 Ovens , 1 circuit
I think the circuit would be legal with the following clarifications.
1. The 60 amp circuit will be come a feeder, because there will be OCPD's at the load end.
2. You'll have to provide a fuse or breaker at the tap point to provide proper overcurrent protection for each cooking unit. NEC 422.11
3. The distance between the tap connection and the appliance OCPD must be according to NEC 240.21 "the tap rule."
4. Think about disconnects. If the 60 amp breaker is the disconnect, you'll shut both cookers down each time you need to use the disconnect.
I think the circuit would be legal with the following clarifications.
1. The 60 amp circuit will be come a feeder, because there will be OCPD's at the load end.
2. You'll have to provide a fuse or breaker at the tap point to provide proper overcurrent protection for each cooking unit. NEC 422.11
3. The distance between the tap connection and the appliance OCPD must be according to NEC 240.21 "the tap rule."
4. Think about disconnects. If the 60 amp breaker is the disconnect, you'll shut both cookers down each time you need to use the disconnect.
bensonelectric
Senior Member
Re: 2 Ovens , 1 circuit
So just put in a subpanel? Seems like the only reason to run a single 60 amp circut to a j-box instead of (2) 30's would be to cut costs, and putting in a subpanel would be more expensive. I believe it would be legal though...
So just put in a subpanel? Seems like the only reason to run a single 60 amp circut to a j-box instead of (2) 30's would be to cut costs, and putting in a subpanel would be more expensive. I believe it would be legal though...
charlie
Senior Member
- Location
- Indianapolis
Re: 2 Ovens , 1 circuit
Matt, it would also be safe and that is the thrust of the Code.
Matt, it would also be safe and that is the thrust of the Code.
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