UL PRODUCT CATEGORY

Outlet Boxes and Fittings Certified for Fire Resistance, CEYY


Guide Information for Fire-resistance Ratings

712.3.2712.4.1602.2.1.4300.21300.22(C)(3)300.21300.22(C)(3)

GENERAL

This category covers outlet boxes and fittings investigated for use in fire-resistance designs as detailed in Fire-resistance Ratings - ANSI/UL 263 (BXUV). These are special-purpose boxes intended for installation in floors, and nonmetallic outlet boxes intended for installation in floors, walls and partitions, and/or ceilings. They are intended for installation in accordance with ANSI/NFPA 70, "National Electrical Code" (NEC). They have shown a degree of fire resistance when installed in the particular floor(s), wall(s) and/or ceiling(s) described for each certified company.

This category includes certifications for nonmetallic outlet and switch boxes for use in fire-resistance-rated wall or partition assemblies. The information provided for each certification includes the model numbers for the certified products, a description of the rated assemblies, the spacing limitations for the boxes and the installation details. Nonmetallic boxes should not be installed on opposite sides of walls or partitions of staggered stud construction unless certified for use in such constructions.

Nonmetallic outlet boxes described for installation in fire-resistance assemblies consisting of wood joists and gypsum-board ceilings are also suitable for use in assemblies consisting of pre-engineered wood joists or trusses and gypsum-board ceilings.

Authorities Having Jurisdiction should be consulted before installation.

FLOOR BOXES

Boxes intended for use with floors have been investigated for use with electrical receptacles fabricated of melamine, phenolic or urea materials, unless specified otherwise in the installation instructions and certification information. Floor boxes and fittings are intended to be installed in accordance with installation instructions provided with the product.

Boxes with integral connectors for electric metallic tubing or for unthreaded rigid metallic conduit are provided with a marking on the carton to indicate the specific type or types of wiring system for which the box has been tested.

Floor boxes designated for floor installation as covered in the NEC are provided with covers and gaskets to exclude surface water and sweeping compounds that might be present in floor-cleaning operations. Those boxes intended for installation in concrete floors are frequently provided with leveling screws, threaded hubs, or both, and are provided with a marking on the carton to identify boxes of this type, such as "Floor Box" or "Floor Box, Concrete Tight," as appropriate.

WALL AND PARTITION AND CEILING BOXES

Nonmetallic outlet boxes investigated for installation in fire-resistive assemblies are provided with the appropriate Certification Mark for electrical products and other markings as described in Nonmetallic Outlet Boxes (QCMZ). Nonmetallic outlet boxes certified for use in fire-resistive designs may have the following marking in the base of the box:

Class * hr, F, W and/or C

where * indicates the hourly rating, such as 1 hr or 2 hr and F = Floor, W = Wall and C = Ceiling.

The boxes are certified for use in certain fire-resistive designs when installed in accordance with the details described for each certified company. Any certified metallic or nonmetallic cover is suitable for use with these nonmetallic boxes.

For installation of certified metallic outlet and switch boxes, see information in the General Design Information Section of UL's Fire-resistance Directory, Walls and Partitions - Penetrations.

PRODUCT IDENTITY

The following product identity appears on the product:

    Outlet Boxes and Fittings

RELATED PRODUCTS

For information on related products, see Fire-resistance Ratings - ANSI/UL 263 (BXUV).

Outlet boxes that comply with established electrical requirements are covered under Metallic Outlet Boxes (QCIT) and Nonmetallic Outlet Boxes (QCMZ).

ADDITIONAL INFORMATION

For additional information, see Fir-resistance Ratings (BXRH).

REQUIREMENTS

The basic standards used to investigate products in this category are ANSI/UL 263, "Fire Tests of Building Construction and Materials," and Supplement SB ("Nonmetallic Boxes for Installation in Fire Resistance Rated Wall and Partition Assemblies") of ANSI/UL 514C, "Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers."

Where indicated in the individual certifications, products have also been investigated for heat and smoke-release characteristics in accordance with ANSI/UL 2043, "Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling Spaces." Such products may be installed in air-handling spaces in accordance with Sec. 300.22(C) of the NEC.

UL MARK

The Certification Mark of UL on the product or on each UL-certified steel floor and form unit with factory-installed floor boxes, or the UL symbol on the product and the Certification Mark of UL on the smallest unit container in which the product is packaged is the only method provided by UL to identify products manufactured under its Certification and Follow-Up Service. The Certification Mark for these products includes the UL symbol, the words "CERTIFIED" and "SAFETY," the geographic identifier(s), and a file number.

Additional Certification Markings

Products covered under this category are additionally marked with the following information:

AS TO FIRE RESISTANCE
SEE UL ONLINE CERTIFICATIONS DIRECTORY
Where indicated in the individual certifications, the following statement may also be included:

SUITABLE FOR USE IN AIR-HANDLING SPACES
IN ACCORDANCE WITH SEC. 300.22(C) OF
THE NATIONAL ELECTRICAL CODE

Alternate UL Mark

The Classification Mark of UL on the product or on each UL Classified steel floor and form unit with factory-installed floor boxes, or the UL symbol on the product and the Classification Mark of UL on the smallest unit container in which the product is packaged is the only method provided by UL to identify products manufactured under its Classification and Follow-Up Service. The Classification Mark for these products includes the UL symbol, the word "CLASSIFIED" above the UL symbol (as illustrated in the Introduction of this Directory), and the following additional information:

OUTLET BOXES AND FITTINGS
FIRE RESISTANCE CLASSIFICATION
SEE UL FIRE RESISTANCE DIRECTORY
Control No.

Where indicated in the individual Classifications, the Classification Mark may also include the statement:

SUITABLE FOR USE IN AIR-HANDLING SPACES
IN ACCORDANCE WITH SEC. 300.22(C) OF
THE NATIONAL ELECTRICAL CODE

* * * * * * * * * * * * * * * * * * * * * * * * *

UL, in performing its functions in accordance with its objectives, does not assume or undertake to discharge any responsibility of the manufacturer or any other party. UL shall not incur any obligation or liability for any loss, expense or damages, including incidental or consequential damages, arising out of or in connection with the use, interpretation of, or reliance upon this Guide Information.

Dog House BoxesFire-rated BoxesFire-rated Flush Device BoxesFire-rated Nonmetallic Outlet BoxesFire-rated Plastic Outlet BoxesFittings, Poke-throughFloor InsertsFlush Device BoxesNonmetallic Outlet BoxesOutlet Boxes, NonmetallicOutlet Boxes, PlasticPlastic Outlet BoxesPoke-through FittingsPoke-throughs
Last Updated on 2013-05-16
CEYY.GuideInfo CEYY Active 20130516 20100115

The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Certified and covered under UL's Follow-Up Service. Always look for the Mark on the product.

UL permits the reproduction of the material contained in the Online Certification Directory subject to the following conditions: 1. The Guide Information, Assemblies, Constructions, Designs, Systems, and/or Certifications (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from the Online Certifications Directory with permission from UL" must appear adjacent to the extracted material. In addition, the reprinted material must include a copyright notice in the following format: "© 2019 UL LLC".