The Hensel Grommets designed for M 20 knockouts feature a sealing range of diameter 6 to 13 mm and are suitable for bore holes of diameter 20.5 mm. They accommodate wall thicknesses ranging from 1.5 to 3.5 mm and are intended for use in normal indoor environments as well as protected outdoor installations. These grommets pass the glow wire test per IEC 60695-2-11 at 750 °C, ensuring high resistance to fire and heat.
IP65 and IP66 protection rated Flame retardant design Self extinguishing material Halogen free and silicone free
