UL 4 PDF

1 Scope

1.1 These requirements cover interlocked steel or aluminum armored cables that contain 2, 3, or 4, 14 – 1 AWG insulated circuit conductors with or without grounding conductors and are for use as Type AC Armored Cable in accordance with Article 320 and other applicable parts of the National Electrical Code (NEC), ANSI/NFPA 70.

1.2 These requirements cover cables for use at potentials of 600 V or less and at temperatures that are not higher than 75°C (167°F) for Type ACTH, or 90°C (194°F) for Types ACHH and ACTHH, depending upon the temperature rating of the insulated conductors used. Cables with aluminum armor are suitable only for use with connectors other than the direct-bearing set-screw type and only in alternating-current circuits.

SUMMARY OF TOPICS

This revision of ANSI/UL 4 dated March 17, 2021 includes the following:

• Addition of Test References to the Standard for Wire and Cable Test Methods, UL 2556; 2.3, 2.4, 9.2, 11.2, 11.3, Figure 11.1, 12.3, Figure 12.1, 12.4, 15.2, Figure 15.1, 16.2 – 16.5

• Marking Changes with Respect to Limited or Low Smoke; 17.6