Non-Metallic Boxes & Covers

Round Ceiling Fan Non-Metallic Romex Box - 24 Cu. In.

Southwire #: MSBFAN Model #: MSBFAN

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MSBFAN FAN SUPPORT 50/LB. MAX. CARTON

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Round Ceiling Fan Non-Metallic Romex Box - 24 Cu. In.

Features & Benefits

Built in hole saw for perfect hole
Center located piercing drill bit for location accuracy during installation
Raised mouting rings with center hole are locatied inside the back of the box for surce mount instllations, basement or attic studs
Required 9/16" driver (no included)
Not for use on lath and plaster walls * 2-1/2" depth
Fixture Rating: 75 Lbs
Fan Rating: 50 lbs
UL Listed & RoHS Compliant

Specifications

Model #	MSBFAN MSBFAN
UPC #	784297017698 784297017698
Product Height	3.7 9.40	inch cm
Product Width	4.0 10.16	inch cm
Depth	4 10.16	inch cm
Product Weight	0.55 0.25	lbs kg
Material	Polycarbonate Polycarbonate
Cubic Capacity	24.0 (393.3) 24.0 (393.3)
Standard Package	10 10

Resources

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REC Line Card

Rated 4 out of 5 by CobraKai from Gets the job done but can be tricky This comment is for the MSBFAN model box that is used for new or old work to support a fan or light fixture. My review is for an old work application. When you are working with an existing hole, getting the wires into the box can be tricky, especially if they are short. You first have to get the wires into the box and then mount the box using the three screws, again which can be tricky. But by far the biggest headache with this product are the screws. They are threaded all the way so they tend to move the box out of position and then it's difficult to get solid contact/support on the first try because the threads are engaged with the box. It will take a couple of attempts. The biggest improvement that can be made with this product is to change to wood style screws that are unthreaded near the head. This will provide for a firm grip into the wood while letting the box move freely and easily stay in position for good contact on the first try.

Date published: 2025-06-24

Will this box screw into an I-joist or do the screws come out at too high an angle so they’ll miss the center of the joist?

Asked by: AC77