The Hawke 476 metallic adaptor and reducer range is designed to increase or reduce entry thread sizes when mounted to a hazardous area enclosure. Dual Certified ATEX/IECEx (along with many more) for use in Flameproof (Exd), Increased Safety (Exe) and Dust (Ext) protection concepts. Also approved for use in Group I Mining Applications, and NEC Class I Div I Explosion proof.