UL 50E BULLETIN-2014
UL Standard for Safety Enclosures for Electrical Equipment@ Environmental Considerations (COMMENTS DUE: DECEMBER 9@ 2014)

Standard No.

UL 50E BULLETIN-2014

Release Date

2014

Published By

Underwriters Laboratories (UL)

Status

Be replaced

Replace By

UL 50E-2015

Latest

UL 50E BULLETIN-2022

Scope

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: a) Enclosures for indoor locations@ Types 1@ 2@ 5@ 12@ 12K@ and 13; and b) Enclosures for indoor or outdoor locations@ Types 3@ 3X@ 3R@ 3RX@ 3S@ 3SX@ 4@ 4X@ 6@ and 6P. This standard covers additional environmental construction and performance requirements for enclosures. The general requirements for enclosures are contained inCSA C22.2 No. 94.1@ UL 50@ and NMX-J-235/1-ANCE (See Annex B@ Ref. No. 10) or the end-use product standards that are to be used in conjunction with this standard. This standard does not cover the requirements for protection of devices against conditions such as condensation@ icing@ corrosion@ or contamination that may occur within the enclosure or that may enter via conduit or unsealed openings. Where an individual product standard contains requirements that are at variance with those of this standard@ the requirements of the individual product standard take precedence.

UL 50E BULLETIN-2014 history

• 2022 UL 50E BULLETIN-2022 UL Standard for Safety Enclosures for Electrical Equipment, Environmental Considerations
• 1970 UL 50E-2020 Enclosures for electrical equipment, environmental considerations
• 2019 UL 50E BULLETIN-2019 UL Standard for Safety Enclosures for Electrical Equipment@ Environmental Considerations (COMMENTS DUE: August 26@ 2019)
• 2017 UL 50E BULLETIN-2017 UL Standard for Safety Enclosures for Electrical Equipment@ Environmental Considerations (COMMENTS DUE: December 14@ 2017)
• 2015 UL 50E-2015 UL Standard for Safety Enclosures for Electrical Equipment, Environmental Considerations (Second Edition)
• 2014 UL 50E BULLETIN-2014 UL Standard for Safety Enclosures for Electrical Equipment@ Environmental Considerations (COMMENTS DUE: DECEMBER 9@ 2014)
• 2013 UL 50E BULLETIN-2013 UL STANDARD FOR SAFETY ENCLOSURES FOR ELECTRICAL EQUIPMENT@ ENVIRONMENTAL CONSIDERATIONS (COMMENTS DUE: SEPTEMBER 30@ 2013)
• 2012 UL 50E BULLETIN-2012 UL STANDARD FOR SAFETY ENCLOSURES FOR ELECTRICAL EQUIPMENT@ ENVIRONMENTAL CONSIDERATIONS (COMMENTS DUE: APRIL 16@ 2012)
• 2011 UL 50E CRD-2011 UL Standard for Safety Enclosures for Electrical Equipment, Environmental Considerations - Section / Paragraph Reference: Revised 1.1, 5.1.7, 7.1.1, 7.2.3.1, 7.2.4.1, 7.3.3.1, 7.3.3.2, 7.3.3.3, 7.3.4.1, 7.3.5.1, 7.5.2, 7.6.1, 8.3.4, 8.5.2, 8.5.3, 8.9, 8.1
• 2010 UL 50E BULLETIN-2010 UL STANDARD FOR SAFETY ENCLOSURES FOR ELECTRICAL EQUIPMENT@ ENVIRONMENTAL CONSIDERATIONS
• 2007 UL 50E-2007 Enclosures for electrical equipment, environmental considerations
• 2006 UL 50E BULLETINS-2006 CSDS 08/25/2006 (12p)
• 2006 UL 50E BULLETIN-2006 UL Standard for Safety Enclosures for Electrical Equipment@ Environmental Considerations
• 2001 UL 50E BULLETINS-2001 (Draft)(DRAFT) UL Standard for Safety for Enclosures for Electrical Equipment, Environmental Considerations
• 2001 UL 50E BULLETIN-2001 UL Standard for Safety Enclosures for Electrical Equipment@ Environmental Considerations