Littelfuse UL 913 Certified Products
Littelfuse offers a wide range of UL 913 Certified products for various applications. UL 913 is the standard for Intrinsically Safe Apparatus and Associated Apparatus for Use in Class I, II, III, Division 1, Hazardous (Classified) Locations. UL 913 requirements also apply to apparatus or parts of apparatus for installation and use in Zone 20, Groups IIIA, IIIB, and IIIC hazardous (classified) locations in accordance with the requirements of the National Electrical Code, NFPA 70. UL 913 requirements also cover associated apparatus located outside of the hazardous (classified) location whose design and construction may influence the intrinsic safety of an electrical circuit within the hazardous (classified) location. These requirements are based on consideration of ignition in locations classified as a hazardous location by the presence of flammable or combustible material under normal atmospheric conditions.