C-AJ-6012

ANSI/UL1479 (ASTM E814)	CAN/ULC S115
F Rating — 2 Hr	F Rating — 2 Hr
T Rating — 0 Hr	FT Rating — 0 Hr
	FH Rating — 2 Hr
	FTH Rating — 0 Hr

1. Floor or Wall Assembly — Min 4-1/2 in. (114 mm) thick reinforced lightweight or normal weight (100-150 pcf or 1600-2400 kg/m³) concrete. Wall may also be constructed of any UL Classified Concrete Blocks*. Max area of opening is 360 sq. in. (0.232 m²) with max dimension of 30 in. (762 mm).
See Concrete Blocks (CAZT) category in the Fire Resistance Directory for names of manufacturers.

2. Busway+ — Nom 27 in. (686 mm) wide (or smaller) by 6 in. (152 mm) deep "I" shaped aluminum and steel enclosure containing factory mounted aluminum bars rated for 600 V, 4000 A. One busway to be installed within the opening. The annular space between the flange tip of the busway and the periphery of the opening shall be a nom 2 in. (51 mm) The annular space between the web section of the busway and the periphery of the opening shall be a nom 5-1/4 in. (133 mm). Busway to be rigidly supported on both sides of floor and wall assembly. The busway shall bear the UL Listing Mark and shall be installed in accordance with all provisions of Article 364 of the National Electrical Code, NFPA 70.

3. Firestop System — The firestop system shall consist of the following:
A. Fill, Void or Cavity Materials* — Putty — Nom 7-1/2 by 6-1/4 in. (191 mm by 159 mm) wide by 1/4 in. (6.4 mm) thick moldable putty pads installed around the entire perimeter of the busway extending a min 2 in. (51 mm) beyond the top surface of floor and both surfaces of wall assembly.
RECTORSEAL — FSP1077 Putty

B. Forms — (Not Shown) — Used as a form to prevent leakage of fill material installation. Forms to be rigid sheet material, cut to fit the contour of the penetrating item and fastened to the underside of floor or both sides of wall. Forms to be removed after fill material has cured.

C. Fill, Void or Cavity Materials* — Mortar — Min 4-1/2 in. (114 mm) thickness of fill material applied flush with top surface of floor and both surfaces of wall. Mortar to be mixed at a rate of 1.1 parts dry mixture to 1.0 part water by weight in accordance with the installation instructions supplied with the product.
RECTORSEAL — Flame Safe Mortar or Metacaulk Fire Rated Mortar

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

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