These requirements address the electric shock@ fire@ and casualty aspects associated with the mechanical performance and the electrical features of portable engine-driven generator assemblies. These requirements cover internal combustion engine-driven generators rated 15 kW or less@ 250 V or less@ which are provided only with receptacle outlets for the AC output circuits. The generators may incorporate alternating or direct current generator sections for supplying energy to battery charging circuits. These generators are for general use in accordance with the National Electrical Code@ NFPA 70@ Article 445@ or for construction site use in accordance with Article 590. Generators covered by this standard are normally used by persons other than service personnel. These requirements cover open ventilated generators having ventilating openings that permit the passage of external cooling air over or around the windings@ or both. These requirements cover generator components and combinations of such components. These requirements do not cover generators for use in hazardous locations as defined in the National Electrical Code@ NFPA 70. These requirements do not cover generators for marine use. These requirements do not cover generators intended for installation in recreational vehicles. That equipment is covered by the Standard for Engine-Generator Assemblies for Use in Recreational Vehicles@ UL 1248. These requirements do not cover generators intended for stationary use. That equipment is covered by the Standard for Stationary Engine Generator Assemblies@ UL 2200. These requirements do not cover generator assemblies as part of welding and plasma cutting machines. That equipment is covered by the Standard for Safety for Transformer-Type Arc-Welding Machines@ UL 551@ or the Standard for Arc Welding Equipment; Part 1: Welding Power Sources@ UL 60974-1. These requirements cover products fueled by flammable and combustible liquids such as gasoline and diesel fuel@ including gasoline with small amounts of additives such as detergents@ solvents for detergents and anti-icing chemicals@ and gasoline with up to10% ethanol
UL 2201 BULLETIN-2014 history
2018UL 2201-2018 UL Standard for Safety Carbon Monoxide (CO) Emission Rate of Portable Generators (Second Edition)
2017UL 2201 BULLETIN-2017 UL Standard for Safety Portable Engine-Generator Assemblies (COMMENTS DUE: February 16@ 2017)
2014UL 2201 BULLETIN-2014 UL Standard for Safety Portable Engine-Generator Assemblies (COMMENTS DUE: June 17@ 2014)
2013UL 2201 BULLETIN-2013 UL Standard for Safety Portable Engine-Generator Assemblies
2012UL 2201 BULLETIN-2012 UL Standard for Safety Portable Engine-Generator Assemblies
2011UL 2201 BULLETIN-2011 UL Standard for Safety Portable Engine-Generator Assemblies (COMMENTS DUE: June 10@ 2011)
2010UL 2201 BULLETIN-2010 SUMMARY OF TOPICS The following changes in requirements to the Standard for Portable Engine-Generator Assemblies, UL 2201, are being proposed
2009UL 2201 BULLETIN-2009 UL Standard for Safety Portable Engine-Generator Assemblies (COMMENTS DUE: September 02@ 2009)
2008UL 2201 BULLETIN-2008 OUTLINE OF INVESTIGATION FOR PORTABLE ENGINE-GENERATOR ASSEMBLIES
2007UL 2201 BULLETIN-2007 UL Standard For Safety Portable Engine-Generator Assemblies (COMMENTS DUE: DECEMBER 17@ 2007)
2005UL 2201 BULLETIN-2005 UL Standard For Safety Portable Engine-Generator Assemblies
2004UL 2201 BULLETINS-2004 UL Standard For Safety Portable Engine-Generator Assemblies (12/10/2004 (100p); 05/21/2004 (114p))
2003UL 2201 PROPOSED-2003 (Draft)(DRAFT)UL Standard for Safety for Portable Engine-Generator Assemblies Proposed First Edition; Comments Due: April 30, 2003