Cut Sheet

Commercial Products
Switch and Outlet BOxeS and cOverS
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© February 2015
1411
Depth
(inches)
Clamp
Type
Bracket, Offset
or Expansion
Knockouts
(inches) mm
3
(in
3
)
Catalog
Number
4" Octagon - without Support Bar Hangers
1-1/2
AC/MC,
NM
– (3) 1/2
253,999.5
(15.5)
FFS-561L
2-1/8
AC/MC,
NM
– (3) 1/2
352,321.9
(21.5)
FFS-561LD
2-1/8
AC/MC,
NM
FB,1/2” (2) 1/2
352,321.9
(21.5)
FFS-561LD-VB-NW
2-1/8 – FB,1/2” (6) 1/2
352,321.9
(21.5)
FFS-5613LD-VB-NW
4" Octagon - with Support Bar Hangers 
1/2 –
NBH,
16”to24"
(2) 1/2
95,044.9
(5.8)
FFS-561L-NBH
1-1/2
AC/MC,
NM
OBH,
16”to24”
3) 1/2
253,999.5
(15.5)
FFS-561L-OBH
2-1/8
AC/MC,
NM
NBH,
16”to24”
3) 1/2
352,321.9
(21.5)
FFS-561LD-NBH
2-1/8
AC/MC,
NM
OBH,
16”to24"
3) 1/2
352,321.9
(21.5)
FFS-561LD-OBH
 NBH is for new construction. Complies with NEC 442.18 for up to 16 kg (35 lbs) of ceiling fan load or 32 kg (70 lbs) of fixture load.
4” Octagon Ceiling Fan Boxes With and Without Support Bar Hangers
NEC/CEC:
UL Standard: 514A, 514B
UL Listed: E2527
NEMA: FB-1, OS-1