UL 6A PDF

1 Scope

1.1 These requirements cover aluminum (ERMC-A) and stainless steel (ERMC-SS) electrical rigid metal conduit, nipples, elbows, and couplings in 12 – 155 (3/8 – 6) trade sizes for use as metal raceway for the installation of wires and cables in accordance with CSA C22.1, Canadian Electrical Code, Part 1, NOM-001-SEDE, Standard for Electrical Installations, and NFPA 70, National Electrical Code (see Reference Item No. 1, Annex A). It is the user’s responsibility to determine the appropriate product for the application.

1.2 These requirements also cover red brass (ERMC-RB) electrical rigid metal conduit, nipples, elbows, and couplings in 16 (1/2) trade size for use as metal raceway for the installation of wires and cables in direct burial and swimming pool applications in accordance with the applicable national electrical installation codes.

1.3 Steel conduit is covered by the standards listed in Reference Item No. 2, Annex A.

Summary of Topics

This reaffirmation of ANSI/UL 6A dated November 20, 2024 is being issued to update the title page to reflect the most recent designation as a Reaffirmed American National Standard (ANS). No technical changes have been made.

As noted in the Commitment for Amendments statement located on the back side of the title page, ULSE, CSA, and ANCE are committed to updating this harmonized standard jointly. However, the revision pages dated November 20, 2024 will not be jointly issued by ULSE, CSA, and ANCE as these revision pages only address UL ANSI approval dates.