Service

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 System
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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