Plastic push button as a front element with a mounting dimension of 22 mm, part of the Harmony XB5 series. The actuation function features a latching mechanism. Customizations are possible through the Harmony Online Configurator, which allows for individual adjustments such as labeling, printing, and color designs. The modular Harmony XB4 and XB5 series with 22 mm mounting dimensions combines easy installation, efficiency, modern design, and flexibility with maximum robustness. They offer IP protection ratings up to IP69K and can operate in ambient temperatures ranging from -40 °C to +70 °C. The 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, RINA, BV, CSA, and LROS.