Legrand 152CHA - Manual (Page 6)

Evolution Series Poke-Thru Devices are UL Listed and Classified to U.S. and Canadian safety standards to the
following conditions:
The 6STC Poke-Thru Stem with the 6CFFTC Service Head Fitting, and the 6ATCFF factory assembled Poke-Thru device are
for use with 1-, 1 1/2 -, or 2- hour rated unprotected reinforced concrete floors and 1-, 1 1/2 -, or 2- hour rated floors employing
unprotected steel floor units and concrete topping (D900 Series Designs), or concrete floors with suspended ceilings. (Fire resistive
designs with suspended ceilings should have provisions for accessibility in the ceiling area below the Poke-Thru fittings).
The assembled Poke-Thru stem and service fitting will not reduce the ratings of the floor assembly when the thickness and type
of concrete (required for the specific rating) are within the specified limits and the fittings are installed as specified:
1. Spacing – Minimum of 2' [610mm] OC and not more than one unit per 65 sq. ft. [6 m 2 ] of floor area in each span.
2. Concrete – Minimum thickness of structural concrete topping of 2 1/4" [57mm] over metal deck or a minimum 3" [76mm]
thick reinforced concrete slab. Unit weight of concrete to be 110 to 155 pcf.
3. Installation – Mounted in a 6" [152mm] diameter hole in concrete per installation instructions accompanying
the fittings. For use with power circuits, data and/or audio/visual cables as tabulated below:
The “TC” suffix letters indicate that the device may be installed on tile or carpet covered concrete floors.
6
Max Copper .0815 sq. in. .0686 sq. in. .0187 sq. in.
X-Section [52.6 mm 2 ] [44.3 mm 2 ] [12.1 mm 2 ]
Max # (10) 10 AWG (176) 23 AWG (48) 23 AWG
Conductors
POWER DATA CHANNEL DATA CHANNEL
CHANNEL (CENTER) (OUTSIDE)
COPPER CROSS-SECTION
Size Solid
#24 .00032 sq. in. [.20645mm 2 ]
#22 .00050 sq. in. [.32258mm 2 ]
#14 .00323 sq. in. [2.08386mm 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: When using conductor sizes other than listed above, the aggregate cross-sectional area of
the copper conductors shall not exceed the cross-sectional areas listed.
NOTE: Use above values for solid or stranded conductors.