As you all know the NEC code permits only 42 ways per panel. so what we could do if we need more than 42 ways? In order to use more than 42 ways we can add new section panel. However my question is do we need a separate feeder and breaker for the additional section?
NO. OF WAYS
- Thread starter m sleem
- Start date
- Status
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
The nec changed that rule and that only applied to lighting and appliance branch panelboards. There is no limit now and when you hit the magically 42 you just add another sub panel.
Daniel malack
Senior Member
- Location
- Amissville, Virginia USA
daniel malack
daniel malack
Cutler Hammer has put out a 60 space panel with full length neutral bars. You might be interested in something like that
daniel malack
Cutler Hammer has put out a 60 space panel with full length neutral bars. You might be interested in something like that
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
You can also feed a second panel from the first without any additional OCPD if the feeders between the panels are sized to the first panels OCPD.
Example: First panel has a 200A main OCPD and lugs for a feeder. You could feed a second 200A panel that main lug only with 3/0 CU and be legal. This assumes the total calculated connected load of both panels does not exceed 200 amps.
Example: First panel has a 200A main OCPD and lugs for a feeder. You could feed a second 200A panel that main lug only with 3/0 CU and be legal. This assumes the total calculated connected load of both panels does not exceed 200 amps.
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I understand Sq. D has also. Personally I usually spread a few sub panel throughout the home. Commercially it may be of value.
thanks jumper, i understand but please clarify what is the OCPD? i guess it means breaker or BUS BARS.
north star
Senior Member
- Location
- inside Area 51
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m sleem,
OCPD's are defined as "Over Current Protection Devices" [ aka - circuit breakers ].
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m sleem,
OCPD's are defined as "Over Current Protection Devices" [ aka - circuit breakers ].
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jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Strathead
Senior Member
- Location
- Ocala, Florida, USA
- Occupation
- Electrician/Estimator/Project Manager/Superintendent
Square D has 42 circuit, 54 circuit 72 circuit and 84 circuit panels now.
- Status