Additional Resources

Technical Information

The success of your organization relies on the performance of your mission-critical electrical and electronic systems. Under these circumstances, you need equipment protection from an enclosure provider you can depend on. Hoffman engineers have years of expertise and experience designing and testing enclosures. Aside from meeting strict standards requirements, we conduct rigorous enclosure performance testing in our on-site UL lab. Put Hoffman’s knowledge to use resolving your equipment protection issues.


Standards Organization Summary and Directory

NEMA, UL and CSA Ratings

    Industry Standards for Non-Hazardous Applications

    IEC and CE Classifications

    Short Circuit Current Rating

    Chemical Resistance

    Materials and Paint Finishes


      Electromagnetic Compatibility

      Thermal Management

      Heat Dissipation in Electrical Enclosures

      Fan/Blower Selection and Sizing

      Seismic Products

      Seismic Enclosures Overview

        Hazardous Locations

        Hazardous Location

        North American Class, Division and Zone Protection Methods

        European Class, Division and Zone Protection Methods

          Division, Zone and Category Comparisons

            Arc Flash

            Arc Flash Protection


            Sanitary Washdown

            Wireway Fill and Disconnect Wire Bend Space

            Wireway Fill

              Disconnect Wire Bend Space