Ceiling Box Weight Limit

314 27 c states where spare separately switched ungrounded conductors are provided to a ceiling mounted outlet box in a location acceptable for a ceiling suspended paddle fan in one family two family or multifamily dwellings the outlet box or outlet box system shall be listed for sole support of a.

Ceiling box weight limit.

Old work ceiling box weight limit re. What is the weight limit for your old work round box b618r if you are hanging a light fixture from the ceiling. B maximum luminaire weight. Any other options to secure a box short of opening up the drywall which is not a problem if required to do it correctly.

Moreover the magnitude of that downward force increases with blade length. Outlet boxes or fittings designed for the support of luminaires and installed as required by 314 23 shall be permitted to support a luminaire weighing 23 kg 50 lb or less. Ceiling fans not only weigh more than light fixtures but they vibrate which adds to the downward force exerted on the box. The b618r is a round old work outlet box and is not listed for fixture support in the ceiling.

The second paragraph of sec. What is the weight limit on one of these boxes. Deep and includes 8 32 threads for cover plates and lightweight fixtures and 10 24 threads for ceiling fans and heavier fixtures. Only approved ceiling boxes are allowed to support fixtures in the ceiling.

Featuring a heavy duty all metal dual mount electrical box the ceiling fan box works with any model of ceiling fan. The pan is 1 2 in.