Cut Sheet
N-25
Arlington Industries, Inc.
www.aifittings.com • E-mail: sales@aifittings.com
800/233-4717 • FAX 570/562-0646
Fan/Specialty Boxes
Fan & Fixture
Mounting Boxes
for New
Construction
Mounts fans and fixtures on
sloped or cathedral ceilings.
CATALOG UPC/DCI/NAED DESCRIPTION/ UNIT STD DIM DIM DIM DIM
NUMBER MFG #01 8997 STYLE PKG PKG ABCD
FB450 75240 Fits Sloped Ceilings 168.000 8.000 9.729 3.875
up to 45° - 14.5 Cu. In.
FB900 75250 Fits Cathedral Ceilings 168.000 8.000 6.364 3.875
80°, Plus - 14.5 Cu. In.
Refer to chart on page N-28 for load ratings and number of single conductors.
PATENTED.
ADDITIONAL PATENTS
PENDING.
FB450
Installation Instructions
Install the FB450 on the
2x8 using the
(2) #8 x 1-1/2" long
parked screws provided.
Trim a 2x8,
approximately 18" long.
Allow the panel to extend
9-11" past the FB450.
Install the FB900 in the
center of the cut 2x4
using the (2) #8 x 1-1/2"
long parked screws
provided.
Cut a 2x4 approximately
14" long to span the
pitched rafters.
Note: Install fan or fixture
(not included) in accordance with
manufacturer’s instructions and all
local applicable electrical codes,
using the parked screws provided.
Position the 2x4 with the
FB900 attached to the
angled rafters, keeping
bottom of box level, and
the short sides of the box
touching the angled
rafters. Nail or screw the
assembly, spanning both
angled rafters.
Score and trim the FB450
as necessary, keeping
bottom of box level.
(Short side needs to
touch rafter.) Trim wood
as necessary to butt it to
rafter. Nail or screw
assembly to rafter.
Push the cable through
the installed cable
connector in the electrical
box.
Push the cable through
the installed cable
connector in the electrical
box.
FB900FB450
A
B
D
C
C
B
D
A
Features and Benefits
• No loose parts to misplace –
totally self-contained!
• Large, 8" square mounting
surface handles newer fans with
larger canopies
• Installs quickly and securely
• FB900 has taller sides to fit
cathedral ceilings with angles
greater than 80°
• Paintable, textured finish
• Fan/fixture installation screws
are “parked”...ready for easy
fan/fixture bracket installation!
• UL rated: 70 lb. fan, 200 lb.
fixture; CSA rated: 50 lb.
fan/fixture
Each fan/fixture box includes...
Mounting block with built-in electrical box, installed
NM94 cable connector, two installation screws ready to
tighten, and two parked-in-place fan/fixture bracket
installation screws (ready for installer).
FB900
FB450
FB900
E170558 LR49636
FB450
FB900
THE SIMPLE WAY TO
A GREAT FINISH!

