Front element for double pushbutton Harmony ZB5. Plastic cover. 2 flat pushbuttons, black buttons without button labels. Dimensions (WxHxD) 30x50x30 mm, mounting diameter 22 mm, weight 0.023 kg. Thanks to its IP66 protection class, it is shockproof, dustproof, waterproof and vibration-resistant, making it ideal for use in harsh environments. Mechanical life 1,000,000 cycles. Head shape rectangular, standard. With high vibration resistance and chemical resistance, ambient temperature -40 to +70 degrees C. The modular plastic range with 22 mm installation dimension combines easy installation, efficiency, modern design, flexibility with maximum robustness. Certifications according to LROS (Lloyds register of shipping), DNV, GL, UL listed, BV, RINA, CSA. Product standards according to EN/IEC 60947-5-1, CSA C22.2 No 14, EN/IEC 60947-5-4, JIS C 4520, EN/IEC 60947-1, UL 508.