Legrand AV3 User Manual
Page 5
The AV3TC Series Poke-Thru Devices are UL Listed and Classified to U.S. and Canadian safety
standards to the following conditions:
The AV3STC Poke-Thru stem with the AV3CTC service head fitting, the AV3ATC factory assembled Poke-Thru device, and the
AV3APTC abandonment fitting are for use with 1, 1-1/2, or 2 hr rated unprotected reinforced concrete floors and 1, 1-1/2 or 2 hr
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 in.[57mm] over metal deck or a minimum
3 in. thick reinforced concrete slab. Unit weight of concrete to be 110 to 155 pcf.
3. – Installation – Mounted in a 4 in. diameter core-drilled hole in concrete per installation instructions
accompanying the fittings or abandonment fittings. For use with power circuits, date 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.
FLOOR COVERINGS: The Poke-Thru device is fire rated for carpet or wood covered 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.
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
AV3ATC series
–
3 (.01536 sq in.)
[9.909mm
2
]
38
(.01900 sq. in.) [12.259mm
2
]
AV3STC series
AV3CTC series
3 (.01536 sq. in.)
[9.909mm
2
]
38
(.01900 sq. in.) [12.259mm
2
]
POKE-THRU SERVICE
POWER
COMMUNICATION
FITTING TYPE
FITTING TYPE
CONDUCTORS (A)
CONDUCTORS (B)
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’
Cat. No. RC37REC or RC37REC-25.