22 mm Push Button Complete Units, Plastic Siemens extremely rugged IP69K push button complete units in high-grade plastic. On these new models, the electrical module is permanently installed and is only secured by the holder. Available in a variety of colours, illuminated or non-illuminated style. Easy installation Suitable for use in extreme environments No special tools required Simple geometry for mounting holes Standards IEC 60947-1, EN 60947-1 IEC 60947-5-1, EN 60947-5-1 Siemens Sirius Act Range The SIRIUS ACT range of push buttons and signalling devices presents an expertly designed selection of push buttons, pilot lights and switches that are intelligent, reliable and physically robust. An innovative snap-on concept makes the task of installing a unit so effortless that it can be done with one hand. Made with real metals and high-grade plastics, installed with smart functions and interaction abilities, these state-of-the-art push buttons, indicator lights and switches have been extreme element tested to guarantee a long usage life and reliability for all your operations. One-handed installation without special tools Components can be snapped on without having to hold the other side Installation possible in a slanted position Modular concept Stylish design & high-quality materials Extremely Rugged & Reliable Flexible Communication - AS-I, IO Link and Profinet