Plastic push button switch with a front element and a mounting dimension of 22 mm, part of the Harmony XB5 series. Customizable via the Harmony online configurator, with individual options such as labeling, printing, and color designs. The modular Harmony XB4 and XB5 series offers mounting dimensions of 22 mm and combines easy installation, efficiency, modern design, and flexibility with maximum robustness. They provide IP protection ratings of up to IP69K and can operate in ambient temperatures ranging from -40 °C to +70 °C. Product standards include EN/IEC 60947-5-1, EN/IEC 60947-5-4, CSA C22.2 No. 14, UL 508, EN/IEC 60947-1, JIS C 4520, with certifications from DNV, GL, UL listed, RINA, BV, and CSA.