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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

Overview

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.

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.

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

Benefits

With combined U.S. and Canadian testing of mechanical support assemblies metallic and nonmetallic outlet boxes and cover plates; conduit, conduit fittings and conduit/cable support; and cable trays we can provide extensive North America 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
commercial port at dusk

Please see our global market access services for more information

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