Legrand RC3APTCBK User Manual
Page 5
The RC3TC Series Poke-Thru Device is UL Listed and Classified to U.S. and Canadian safety standards to the
following conditions:
The RC3STC Poke-Thru Stem with the RC3CTC Service Head Fitting or the RC3KTC Conversion Kit Assembly, the RC3ATC
factory assembled poke-thru device, and the RC3APTC 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 4" diameter core-drilled hole in concrete per installation instructions accompanying
the fittings or abandonment fittings. For use with power circuits, data and/or telephone cables as tabulated below:
The “TC” suffix letters indicate that device may be installed on tile or carpet covered concrete floors. All catalog numbers
may have an “RT” suffix to indicate units supplied with Ortronics, Inc. communication modules and accessories. The “LJB”
suffix letters indicate units supplied without a junction box. The "25" suffix numbers indicate units supplied with 25 foot
receptacle leads.
(A) Maximum number of No. 12 AWG Type THHN conductors in power compartment of Poke-Thru fitting.
(B) Maximum number of 22 AWG conductors in low voltage compartment of Poke-Thru fitting (4-pair cables have
(8) conductors). When conductors larger than No. 22 AWG are used, the aggregate cross-sectional area of the
copper conductors shall not exceed the aggregate cross-sectional area of the 22 AWG conductors permitted
in the low voltage compartment.
For use on carpet covered and tile floors up to 3/4" [19.1mm] thick.
CAUTION: Receptacle supplied with this Poke-Thru is not suitable for direct field wiring. Contact manufacturer for replacement.
Field modifications will void UL Listing and Classification. Replacement receptacle is limited to this manufacturers’
Catalog No. RC37REC or RC37REC-25.
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: Use above values for solid or stranded conductors.
5
RC3ATC
–
3
32
(.01536 sq in.) [9.9103mm
2
]
(.01600 sq. in.) [10.323mm
2
]
RC3STC
RC3CTC 3
32
(.01536 sq in.) 9.9103mm
2
]
(.01600 sq. in.) [10.323mm
2
]
RC3STC
RC3KTC 3
32
(.01536 sq in.) 9.9103mm
2
]
(.01600 sq. in.) [10.323mm
2
]
POKE-THRU SERVICE
POWER
COMMUNICATION
FITTING TYPE
FITTING TYPE
CONDUCTORS (A)
CONDUCTORS (B)