Not true for this one. The box is plastic, very shallow and attaches in
the middle to a joist. The weight of the fan is carried by 2 #12 1-1/2"
screws which go directly into the joist. Although the screw spacing is
the same as the much smaller screws for a light fixture junction box
there is no crossbar and the screws go directly into the joist. If you
try to attach the type of chandalier I have you'll find that the top
pipe nipple which carries the wiring sticks up in the center right into
the joist. I had to drill a 1" diameter hole through the box and into
the joist to allow clearance for the nipple and wiring.
The fundamental difference is that the fan is designed to hang below the
junction box and the box only provides a shallow space for wiring and
wire nuts. A light box is deep and has no protrusion in the center.
It's designed to be mounted between joists instead of bolted directly to
a single joist. Not fun.
Chuck Norcutt
On 12/13/2014 3:38 PM, Mike Lazzari wrote:
Advice to all for the future, don't try to hang a light fixture in a
junction box designed for a ceiling fan. The ceiling fan junction box
was a screwup on the part of the builder.
Definitely a screw up. A box for a ceiling fan should work like any
other box with no modification needed. Only difference is that they are
generally metal and secured to the framing to support the weight of a fan.
--
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