Hazardous Location Extension Mounting Style Wall For Use With NV2 Series Overall Width 4 3/4 in Overall Length 4 3/4 in Overall Height 3 1/6 in Includes Reflector Material Polyester Finish Epoxy Powder Coat Color Gray Standards NEMA 4 NEMA 4X Class I Division 2 Group B C D Class II Division 2 Group F G llA llB llC Class lII IP66 UL Marine Rated (US only) Zone 2