The Hensel Grommets for M 40 knockouts feature a sealing range of diameter 17 to 30 mm and are designed for bore holes of diameter 40.5 mm. They accommodate wall thicknesses between 1.5 and 3.5 mm, making them suitable for both normal indoor environments and protected outdoor installations. These grommets meet the glow wire test requirements of IEC 60695-2-11 at 750 °C, providing robust resistance to high temperatures and flame.
IP55 protection rated Self extinguishing material Flame retardant design Halogen free and silicone free
