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Mechanical support and assembly services

Testing and certifying cable trays; conduit, conduit fittings and conduit/cable support; and metallic and nonmetallic outlet boxes and cover plates

Bus bar system

National and local building codes require certification of metallic and nonmetallic outlet boxes and cover: raceway systems employing conduit, conduit fittings and conduit supports; and metallic and nonmetallic cable trays. We offer many certifications for these products and evaluate the interchangeability of these components to be used together. We understand your challenges keeping up with the emerging technologies and demands for faster installations. As innovation continues in the electrical construction industry, we’re poised to meet your needs.

With combined U.S. and Canadian testing of mechanical support assemblies including metallic and nonmetallic outlet boxes and cover plates; conduit, conduit fittings and conduit/cable support; and cable trays we can provide extensive North American access. Our long history and experience with products allow us to provide assistance and develop requirements that help your products get certified and accepted by local AHJs.

In addition to assisting with the certification process of cable trays; conduit, conduit fittings and conduit/cable support; and metallic and nonmetallic outlet boxes and cover plates; we can also provide other support for instances where the product is onsite but is not currently certified or for innovative constructions not currently anticipated by the standards or the NEC. These services include:

  • Verification Marks
  • Field evaluations
  • New and innovative product support including support proposing NEC changes
  • Advisory services

Overview

Installing metallic and nonmetallic outlet boxes and covers helps ensure a suitable mechanical and, for the metallic outlet boxes and covers, electrical ground path to protect the wiring inside and the user from shock hazards.

Additionally, installing cable or conduit raceway systems helps ensure a suitable mechanical and, for some systems, electrical ground path to protect the user and the wiring inside from shock hazards.

Finally, installing cable trays helps ensure the suitability of the mechanical securement based on a load rating of the cable trays. Metallic cable trays additionally help ensure the suitability of the electrical ground path to protect the user and the cable laying inside the cable trays from shock hazards.

    Services

    Metallic and nonmetallic outlet boxes and cover plates

    When performing electrical inspections, authorities having jurisdiction (AHJs) require metallic and nonmetallic outlet boxes and covers to be certified. UL offers U.S. and Canadian certification to meet these requirements. UL can also offer testing and reports for acceptance of some of these products for use in the Middle East and the NOM Mark for use in Mexico.

    We can also assist with accessing the following global markets:

    • IEC 60670-1, Boxes and Enclosures for Electrical Accessories for Household and Similar Fixed Electrical Installations - Part 1: General Requirements, in addition to one or more of the following:
      • IEC 60670-21, Boxes and Enclosures for Electrical Accessories for Household and Similar Fixed Electrical Installations - Part 21: Particular Requirements for Boxes and Enclosures with Provision for Suspension Means
      • IEC 60670-22, Boxes and Enclosures for Electrical Accessories for Household and Similar Fixed Electrical Installations - Part 22: Particular Requirements for Connecting Boxes and Enclosures
      • IEC 60670-23, Boxes and Enclosures for Electrical Accessories for Household and Similar Fixed Electrical Installations - Part 23: Particular Requirements for Floor Boxes and Enclosures
      • IEC 60670-24, Boxes and Enclosures for Electrical Accessories for Household and Similar Fixed Electrical Installations - Part 24: Particular Requirements for Enclosures for Housing Protective Devices and Other Power Dissipating Electrical Equipment

    Product categories that we provide testing and certifications services include:

    General category

    Name

    Standard

    Outlet boxes

    Metallic outlet boxes

    UL 514A

    Outlet boxes

    Nonmetallic outlet boxes

    UL 514C

    Outlet boxes

    Metallic conduit bodies (US)

    UL 514A and UL 514B

    Outlet boxes

    Nonmetallic conduit bodies (US)

    UL 514C and UL 514B – See note below

    Cover Plates

    Flush device cover plates – metallic and nonmetallic

    UL 514D

    Note: Conduit bodies are considered fittings for use in Canada.

    Conduit, conduit fittings and conduit/cable support

    When performing electrical inspections, AHJs require conduit, conduit fittings and conduit supports to be certified. We offer U.S. and Canada certification to meet these certification needs. We can also offer testing and reports for acceptance of some of these products for use in the Middle East and the NOM Mark for use in Mexico.

    We can also assist with accessing the following global markets:

    • Mexico (NOM Mark)
    • Middle East (UL Certification Mark accepted in some countries, Type Examination Certificate to IEC 62444)

    Product categories that we provide testing and certifications services include but are not limited to:

    General category

    Name

    Standard

    Conduit

    Rigid metal conduit – steel and stainless, aluminum or red brass

    UL 6, UL 6A

    Conduit

    Intermediate metal conduit (U.S. only)

    UL 1242

    Conduit

    Electrical metal conduit

    UL 797

    Conduit

    Electrical metallic tubing – aluminum and stainless steel

    UL 797A

    Conduit

    PVC conduit – sch. 40, 80, EB, A

    UL 651

    Conduit

    HDPE conduit -

    UL 651A

    Conduit

    Liquidtight flexible metal conduit

    UL 360

    Conduit

    Flexible metal conduit

    UL 1

    Conduit

    Electrical nonmetallic tubing

    UL 1653

    Conduit

    Nonmetallic underground conduit with conductors

    UL 1990

    Fitting

    General fitting category that covers RMC, IMC, PVC, FMC, LFMC conduit fittings etc

    UL 514B, UL 651

    Fitting

    EMT only fittings

    UL 514B

    Fitting

    Outlet bushings and fittings

    UL 514B

    Fitting

    Armored cable

    UL 514B

    Fitting

    Metal clad cable

    UL 514B

    Fitting

    Electrical nonmetallic tubing - fittings

    UL 1653

    Support

    Conduit, tubing and cable hardware

    UL 2239

    Cable trays

    When performing electrical inspections, AHJs require metallic and nonmetallic cable trays to be certified. We offer U.S. and Canadian certification to meet these requirements and can also offer testing and reports of some of these products for global market acceptance.

    We can also assist with accessing international markets with:

    • IEC 61537, Cable Management - Cable Tray Systems and Cable Ladder Systems

    Product categories that we provide testing and certifications services for include:

    General category

    Name

    Standard

    Metallic cable trays

    Metal cable tray system

    C22.2 No. 126.1-17

    Nonmetallic cable trays

    Nonmetallic cable tray systems

    UL 568

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