Cut Sheet
3
Copper Cross Section:
The copper cross-sectional area determines the amount of wire
fill capacity in a poke-thru device. Unlike other wire and cable
management systems that utilize wire fill capacity, a poke-thru device is
UL tested under fire conditions to determine the maximum amount of
copper conductors that will pass through a poke-thru device, while
maintaining the fire-rating of the concrete slab. The FIT with 200 or
with 241 Series Service Heads are UL Classified to U.S. and Canadian
safety standards (see complete marking on product) to accommodate
the following:
Maximum Allowable Copper Cross Sectional Area:
200 Series Service Head (Power/Communication Combined).
Power compartment = .01536 sq. in. (9.91mm
2
).
Communication compartment = .05020 sq. in. (32.39mm
2
).
200 Series Service Head (Power only) = .06656 sq. in. (42.94mm
2
).
200 Series Service Head (Communication only) = .06526 sq. in. (42.10mm
2
).
241 Series Service Head (Power/
Communication Combined).
Power compartment = .03584 sq. in.
(23.12mm
2
). Communication
compartment = .05020 sq. in. (32.39mm
2
).
241 Series Service Head
(Power only) = .08192 sq. in. (52.85mm
2
).
241 Series Service Head
(Communication only) =
.08534 sq. in. (55.06mm
2
).
Junction Box:
Supplied with every insert. 16-gauge
C.R.S. galvanized box having the
following cubic content, complete
with 1/2" and 3/4" trade size knockouts.
(Power only .....30 cu. in. (492cu cm).
Combination.....25 cu. in. (410cu cm)).
NOTE: The FIT Series Poke-Thru
requires a 2" (51mm) cored hole.
FIT Series Poke-Thru Specifications
CAUTION: These devices meet all UL scrub water requirements,
but are not suitable for wet or damp locations, or
other areas subject to saturation with water or
other liquids such as commercial kitchens.
200 H/BTC
241-H/BTC
IMPORTANT!
The above maximum copper cross sectional
area values are for each individual power and
communication compartment. DO NOT add
values together for any one compartment.
Size Solid
#24 .00032 sq. in. (.20645mm
2
)
#23 .00040 sq. in. (.258mm
2
)
#22 .00050 sq. in. (.32258mm
2
)
#12 .00512 sq. in. (3.30321mm
2
)
#10 .00815 sq. in. (5.25805mm
2
)
# 8 .01296 sq. in. (8.36127mm
2
)
Copper Cross Sectional Area
of Commonly Used Conductors
NOTE:
Use above values for solid or stranded conductors.
Floor Coverings:
The poke-thru device is fire rated for carpet
covered floors, tile floor coverings up to 3/4"
(19.1mm) maximum thickness, and linoleum
floor coverings up to a maximum of 1/8"
(3.2mm) thickness. For other floor coverings
not listed above, consult factory.
HOLE SIZE MINIMUM HOLE SIZE MAXIMUM
FIT 2 1/32" (52mm) 2 1/8" (54mm)