UL 514A
Metallic Outlet Boxes

DETAILS
Edition Number:11SCC Approved:--
Edition Date:2013-02-01DOD Approved: --
Price Code:DANSI Approved: 2017-08-11
Type:ulcsance

  • SCOPE

    1 Scope

    1.1 This standard applies to metallic OUTLET BOXES, flush-DEVICE BOXES, FLOOR BOXES, CONCRETE BOXES, EXTENSION RINGS, covers, CONDUIT BODIES, BAR HANGERS, bar-hanger assemblies, and all accessories whose principal function is for support of boxes. The products covered by this standard are intended for installation in accordance with the National Electrical Code (NEC), NFPA 70, the Canadian Electrical Code (CEC), Part I, and the Standard for Electrical Installations, NOM-001-SEDE.

    In Canada, CONDUIT BODIES are not evaluated as OUTLET BOXES; they are fittings. Requirements in this standard for CONDUIT BODIES intended for use as OUTLET BOXES do not apply in Canada.

    1.2 This standard also applies to marine application metallic OUTLET BOXES, flush-DEVICE BOXES, special purpose boxes, EXTENSION RINGS, and covers.

    1.3 This standard also applies to marine products intended for installation in accordance with the manufacturer's instructions and the applicable requirements of the United States Coast Guard (USCG), IEEE Recommended Practice for Electric Installation on Shipboard, IEEE Standard 45; the American Boat and Yacht Council (ABYC); the Standard for Pleasure and Commercial Motor Craft, NFPA 302; and the Canadian Electrical Code (CEC), Part I.

    1.4 This standard does not apply to cabinets and cutout boxes, boxes, and covers intended for use with raceway systems for surface wiring other than rigid or flexible conduit or electrical metallic tubing. This standard does not apply to boxes having a volume of more than 1640 cm3 (100 in3), other than multiple-gang boxes, flush-DEVICE BOXES, and CONDUIT BODIES intended for the larger trade sizes of conduit.

    1.5 This standard does not apply to cover plates for flush-mounted wiring devices.

    1.6 This standard does not apply to OUTLET BOXES or OUTLET BOX covers for use in hazardous (classified) locations as defined in the National Electrical Code (NEC), NFPA 70, the rules of the Canadian Electrical Code (CEC), Part I, and the Standard for Electrical Installations, NOM-001-SEDE.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
      • Metallic Outlet Boxes
        • 1 Scope
        • 2 Normative references
        • 3 Definitions
        • 4 General requirements
        • 5 Marking
          • 5.1 General
          • 5.2 Box clamps
          • 5.3 Grounding screw
          • 5.4 Closures for concrete boxes
          • 5.5 Box volume
          • 5.6 Specific conditions
          • 5.7 Ceiling-suspended fan support
          • 5.8 Wet location
          • 5.9 Damp location boxes
          • 5.10 Other application environments
          • 5.11 Fixture/luminaire support boxes
          • 5.12 Floor boxes
          • 5.13 Bar hangers
          • 5.14 Marine boxes
          • 5.15 Adjustable mud rings
          • 5.16 Adjustable sleeve extenders
        • 6 Instructions
          • 6.1 Fixture/luminaire support boxes for use in a finished structure (old work)
          • 6.2 Floor boxes, FLOOR-MOUNTED ENCLOSURES, and POKE-THROUGH FLOOR FITTINGS
          • 6.3 Ceiling-suspended fan support boxes
          • 6.4 Wet location boxes
          • 6.5 Adjustable mud ring with adjustable sleeve not assembled to the mud ring at the factory
        • 7 Dimensions and volume
          • 7.1 Sheet steel
          • 7.2 Sheet aluminum
          • 7.3 Cast metal boxes
          • 7.4 Cast metal covers
          • 7.5 Box width
          • 7.6 Internal volume
          • 7.7 Cover mounting hole-spacing
          • 7.8 Measurement of conduit body dimensions (Mexico and United States only)
        • 8 Provisions for grounding
          • 8.1 Connection means
          • 8.2 Screws for gangable (sectional) boxes
        • 9 Construction requirements
          • 9.1 Corrosion protection
          • 9.2 Knockouts
          • 9.3 Partitions
          • 9.4 Openings for rigid conduit, electrical metallic tubing, and conduit hubs
          • 9.5 Box brackets and supports
          • 9.6 Boxes for UNFINISHED STRUCTURES (NEW WORK)
          • 9.7 Boxes for FINISHED STRUCTURES (OLD WORK)
          • 9.8 Device attachment means
          • 9.9 Mounting brackets
          • 9.10 Supports for use with metal studs
          • 9.11 Luminaire studs
          • 9.12 Ceiling-suspended fan support
          • 9.13 Securement of wiring systems at openings
          • 9.14 Closure of openings in pryouts
          • 9.15 Bar hangers: ceiling installations
          • 9.16 Assembly screws
          • 9.17 Clamps for cable, conduit, and tubing
          • 9.18 Adjustable mud rings
          • 9.19 Adjustable sleeve extenders
        • 10 Resistance to ingress of solid objects
          • 10.1 Closure of openings
          • 10.2 Boxes for use in concrete slabs
          • 10.3 Area of open holes
          • 10.4 Holes in conduit bodies
          • 10.5 Pryout holes and slots
          • 10.6 Covers
        • 11 Resistance to ingress of water in marine use and other wet locations
          • 11.1 General
          • 11.2 Openings for conduit
          • 11.3 Gaskets
          • 11.4 Boxes for marine use
          • 11.5 Wet and damp locations
        • 12 Product testing
          • 12.1 Volume measurement of boxes and raised covers
          • 12.2 Strength of fastening of boxes
          • 12.3 Boxes with attached device-mounting straps
          • 12.4 Threaded holes for ground screws
          • 12.5 Ceiling-suspended fan support
          • 12.6 Strength of knockouts
          • 12.7 Flat areas surrounding knockouts
          • 12.8 Nonmetallic plug or other nonmetallic closure
          • 12.9 Partitions
          • 12.10 Clamps for cable, conduit, tubing, and flexible cord
          • 12.11 Boxes and box supports for UNFINISHED STRUCTURES (NEW WORK)
          • 12.12 Supports for use with metal studs
          • 12.13 Boxes intended to be installed in a FINISHED STRUCTURE (OLD WORK)
          • 12.14 Boxes intended to support a fixture/luminaire or other product
          • 12.15 Polymeric supporting means
          • 12.16 Floor boxes, FLOOR-MOUNTED ENCLOSURES, POKE-THROUGH FLOOR FITTINGS, and FLOOR BOX COVERS
          • 12.17 Fixture/luminaire studs: studs and attachment to a box or cover
          • 12.18 Concrete-tightness test
          • 12.19 Marine use
          • 12.20 Resistance to ingress of water
          • 12.21 Permanence of marking
          • 12.22 Other application environments
          • 12.23 Adjustable mud rings
        • 13 Corrosion protection
        • 14 Tests on alternate corrosion protection systems
    • ANNEX A(normative)Component Standards(See Clause .)
    • ANNEX B(normative)Tests on Alternate Corrosion Protection Systems(See Clause .)