Legrand RC7AM2TCBK User Manual
Page 4
The RC9AM2TC and RC7AM2TC Series Poke-Thru Devices are UL Listed and Classified to
U.S. and Canadian safety standards to the following conditions:
The RC9AM2STC Poke-Thru Stem with the RC9CM2TC or the RC7CFFTC Service Head Fitting; the RC9AM2TC or the RC7AM2TC
factory assembled poke-thru device; the RCAPFFTC Abandonment Fitting 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 or the abandonment fittings 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 sq. m] 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 3" [76mm] diameter core-drilled hole in concrete per installation instructions accompanying
the fittings or abandonment fittings. For use with power circuits, data and/or maximum 25 pair size telephone cables
as tabulated below:
SIZE
AREA
#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: Use above values for solid or stranded conductors.
RC9AM2STC
RC9CM2TC
18 (0.09216 sq in.)
–
(Power Only)
[59.462mm
2
]
RC9CM2TC
–
288 (0.09216 sq. in.)
(Communication Only)
[59.462mm
2
]
RC7CFFTC
18 (0.09216 sq in.)
–
(Power Only)
[59.462mm
2
]
RC7CFFTC
–
288 (0.09216 sq in.)
(Communication Only)
[59.462mm
2
]
RC9AM2TC
–
18 (0.09216 sq in.)
–
(Power Only)
[59.462mm
2
]
RC9AM2TC
–
–
288 (0.09216 sq in.)
(Communication Only)
[59.462mm
2
]
RC7AM2TC
–
18 (0.09216 sq in.)
–
(Power Only)
[59.462mm
2
]
RC7AM2TC
–
–
288 (0.09216 sq in.)
(Communication Only)
[59.462mm
2
]
POKE-THRU SERVICE POWER
COMMUNICATION
FITTING TYPE
FITTING TYPE
CONDUCTORS (A)
CONDUCTORS (B), (C)
The “TC” suffix letters indicate that device may be installed on tile or carpet covered concrete floors.
(A) Maximum number of No. 12 AWG Type THHN conductors in poke-thru fitting.
(B) Maximum number of 24 AWG conductors in poke-thru fitting (4-pair cables have (8) conductors, 25 pair cables have
(50) conductors). When conductors larger than No. 24 AWG are used, the aggregate cross-sectional area of the copper
conductors shall not exceed the aggregate cross-sectional area of the 24 AWG conductors permitted in the poke-thru.
(C) When installing the RC9 Series poke-thru device, a steel conduit fitting or a nipple that extends a minimum distance of
1" [25.4mm] beyond surface of carpet/tile flange must be utilized. Conduit may be omitted when used for communication
type cable.
FLOOR COVERINGS: These poke-thru devices are fire rated for carpet or wood-covered concrete floors, tile floor coverings up to
3/4" [19.1mm] maximum thickness, and linoleum floor coverings up to a maximum 1/8" [3.2mm] thickness.
For other floor coverings not listed above, consult factory.