U UL 844 STANDARD FOR SAFETY Luminaires for Use in Hazardous (Classified) Locations OCTOBER 11, 2021 -UL844 tr1 UL Standard for Safety for Luminaires for Use in Hazardous (Classified) Locations, UL 844 ThirteenthEdition,DatedJune29,2012 Summaryof Topics This revision to ANSI/UL 844 dated October 11, 2021 is being issued to correct errors in -60°C Explosion Test Wording; 26.18 and Table 28.1 with a vertical line in the margin. The revised requirements are substantially in accordance with Proposal(s) on this subject dated September3,2021. without prior permission of UL. UL provides this Standard "as is" without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or fitness for any purpose. including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or the inabilitytousethisStandard,evenifULoranauthorizedULrepresentativehasbeenadvisedofthe this Standard, regardless of the form of the claim. Standardonthepurchaser'scomputersystem. tr2 OCTOBER11,2021-UL844 No Text on This Page ANSI JUNE29,2012 (Title Page Reprinted: October 11, 2021) 1 ANSI/UL 844-2021 1 UL 844 Standard for Luminaires for Use in Hazardous (Classified) Locations The First through Eighth editions were titled Electric Lighting Fixtures for Use in Hazardous Locations. Location. Fifth Edition - August, 1969 Sixth Edition - August, 1971 Seventh Edition - June, 1972 Eighth Edition - October, 1978 Ninth Edition - November, 1984 Tenth Edition - November, 1990 Eleventh Edition - August, 1995 Twelfth Edition - January, 2006 Thirteenth Edition June29,2012 This ANSI/UL Standard for Safety consists of the Thirteenth Edition including I revisions through October 11, 2021. The most recent designation of ANSI/UL 844 as an American National Standard I (ANSl) occurred on October 11, 2021. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in UL's On-Line Collaborative Standards Development System (CSDS) at https://csds.ul.com. copy of a Standard should be aitered in any way. All of UL's Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the soieandexclusivepropertyofUL. COPYRIGHT2021UNDERWRITERSLABORATORIESINC. ANSI JUNE29,2012 (Title Page Reprinted: October 11, 2021) 1 ANSI/UL 844-2021 1 UL 844 Standard for Luminaires for Use in Hazardous (Classified) Locations The First through Eighth editions were titled Electric Lighting Fixtures for Use in Hazardous Locations. Location. Fifth Edition - August, 1969 Sixth Edition - August, 1971 Seventh Edition - June, 1972 Eighth Edition - October, 1978 Ninth Edition - November, 1984 Tenth Edition - November, 1990 Eleventh Edition - August, 1995 Twelfth Edition - January, 2006 Thirteenth Edition June29,2012 This ANSI/UL Standard for Safety consists of the Thirteenth Edition including I revisions through October 11, 2021. The most recent designation of ANSI/UL 844 as an American National Standard I (ANSl) occurred on October 11, 2021. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, and Title Page. publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in UL's On-Line Collaborative Standards Development System (CSDS) at https://csds.ul.com. copy of a Standard should be aitered in any way. All of UL's Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the soieandexclusivepropertyofUL. COPYRIGHT2021UNDERWRITERSLABORATORIESINC. ANSI JUNE2