22mm push button, Harmony ZB, an adapter for mounting a 22mm operator in a 30mm hole

XB4/ZB4 and XB5/ZB5 22mm push buttons are for industrial applications. This adaptor is used to mount 22mm operators into a 30mm hole. Adaptors are bulk packaged in quantities of 10. “It weighs 0.008kg.” “It is sold in sets of 10.” “Harmony delivers an innovative and ergonomic design that improves the reliability of panels, machines and processes.” “The modular range of Ø 22mm metal control and signaling units combine simplicity of installation, modern standard and flush mounted design.”