Plastic push button as a front element with a mounting dimension of 22 mm, part of the Harmony XB5 series. The actuator features a silicone protective cap. Customization is possible through the Harmony Online Configurator, which allows for individual adjustments such as labeling, printing, and color design. The modular Harmony XB4 and XB5 series with 22 mm mounting dimensions offers easy installation, efficiency, modern design, and flexibility, combined with maximum robustness. They have IP protection ratings of 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, and JIS C 4520, with certifications from DNV, GL, UL, RINA, BV, CSA, and LROS.