UL 1203 BULLETINS-2003
Standard for Safety for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous

Standard No.

UL 1203 BULLETINS-2003

Release Date

2003

Published By

Underwriters Laboratories (UL)

Status

Be replaced 2009-01

Replace By

UL 1203 BULLETIN-2004

Latest

UL 1203-2022

Scope

These requirements cover: Explosion-proof & dust-ignition-proof elect. equip. for install. & use in hazardous (classified) locations, Cl. I, Div. 1, Gps. A, B, C & D, & Cl. II, Div. 1 Gps. E, F & G in accordance with NEC, NFPA 70. Explosion-proof elect. equip. for install. & use in Cl. I, Zn. 1, Gps. IIA, IIB & IIC hazardous (classified) locations & for use in one or more specific gas or vapor atmospheres with or w/o add'l Cl. I Gps. Equip. under the following atmospheric conditions: a) minimum ambient temperature of -50?C (-58?F) b) oxygen concentration not greater than 21% by vol., & c) Nominal barometric pressure of 1.

UL 1203 BULLETINS-2003 history

• 1970 UL 1203-2022 Explosion-proof and dust-ignition-proof electrical equipment for use in hazardous (classified) locations
• 2019 UL 1203 BULLETIN-2019 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (COMMENTS DUE: MARCH 18@ 2019)
• 2018 UL 1203 CRD-2018 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations - Section / Paragraph Reference: 16 and 42 Subject: Non-drying thickened mineral oil-based thread sealant (Edition 5: November
• 2018 UL 1203 BULLETIN-2018 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (COMMENTS DUE: SEPTEMBER 24@ 2018)
• 2017 UL 1203 BULLETIN-2017 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (COMMENTS DUE: January 29@ 2018)
• 2015 UL 1203 CRD-2015 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations - Section / Paragraph Reference: Sections 15 and 24 (Edition 5: November 22, 2013)
• 2015 UL 1203 BULLETIN-2015 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (COMMENTS DUE: JULY 27@ 2015)
• 2013 UL 1203 BULLETIN-2013 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (COMMENTS DUE: SEPTEMBER 16@ 2013)
• 2013 UL 1203-2013 Explosion-proof and dust-ignition-proof electrical equipment for use in hazardous (classified) locations
• 2011 UL 1203 BULLETIN-2011 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations
• 2009 UL 1203 BULLETIN-2009 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (COMMENTS DUE: APRIL 20@ 2009)
• 2006 UL 1203 BULLETIN-2006 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations
• 2006 UL 1203-2006 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations Fourth Edition
• 2005 UL 1203 BULLETINS-2005 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (12/02/2005 (160p); 01/19/2005 (2p))
• 2004 UL 1203 BULLETINS-2004 02/05/2004 (8p)
• 2004 UL 1203 BULLETIN-2004 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations
• 2003 UL 1203 BULLETINS-2003 Standard for Safety for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous
• 2002 UL 1203 BULLETIN-2002 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations
• 2001 UL 1203 BULLETIN-2001 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations
• 2000 UL 1203-2000 Explosion-proof and dust-ignition-proof electrical equipment for use in hazardous (classified) locations
• 1994 UL 1203-1994 UL Standard for Safety Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations (Second Edition; Reprint with Revisions Through and Including January 23@ 1997)