1 Scope

1.1 This standard applies to enclosures for electrical equipment intended to be installed and used in non-hazardous locations in accordance with the Canadian Electrical Code, Part I, CSA C22.1, the provisions of the National Electrical Code, NFPA 70, and the provisions of Mexico's Electrical Installations, NOM-001-SEDE, as follows:

1. a) Enclosures for indoor locations, Types 1, 2, 5, 12, 12K, and 13; and

2. b) Enclosures for indoor or outdoor locations, Types 3, 3X, 3R, 3RX, 3S, 3SX, 4, 4X, 6, and 6P.

Summary of Topics

This revision of ANSI/UL 50E dated April 30, 2024 includes the following changes in requirements:

– Sealing Compound at Joints or Seams; 7.8.1

– Adhesives that Bond Surfaces; 8.17.2

– Addition of Alternate Test Method of Water Exposure and Immersion; 8.16.1.1

– Ancillary Rating for Power Wash – PW; Clause 5A, Clause 8.18, Figure 4 – Figure 8

– Revision of 8.15.2 by Adding Additional References