distribution panel capacity
- Thread starter jnsh2
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curt swartz
Electrical Contractor - San Jose, CA
- Location
- San Jose, CA
- Occupation
- Electrical Contractor
Re: distribution panel capacity
The main doesn?t count. You would need to look at the label to see if twin breakers are permitted any of the positions. Frequently 30 circuit panels are marked 30-40 and designed to accept 10 twin breakers.
408.35 Number of Overcurrent Devices on One Panelboard
Not more than 42 overcurrent devices (other than those provided for in the mains) of a lighting and appliance branch-circuit panelboard shall be installed in any one cabinet or cutout box.
The main doesn?t count. You would need to look at the label to see if twin breakers are permitted any of the positions. Frequently 30 circuit panels are marked 30-40 and designed to accept 10 twin breakers.
408.35 Number of Overcurrent Devices on One Panelboard
Not more than 42 overcurrent devices (other than those provided for in the mains) of a lighting and appliance branch-circuit panelboard shall be installed in any one cabinet or cutout box.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Re: distribution panel capacity
Curt is correct. I would add that if the panel doesn't fall under the definition of a Lighting and Appliance Branch-circuit Panelboard than it would be a Power Panelboard and would not have a 42 circuit limitation.
Curt is correct. I would add that if the panel doesn't fall under the definition of a Lighting and Appliance Branch-circuit Panelboard than it would be a Power Panelboard and would not have a 42 circuit limitation.
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