Front element for push button Harmony ZB5. Front black, cover plastic. Key removal in rest position. Dimensions (WxHxD) 29x29x62 mm, mounting diameter 22 mm, weight 0.05 kg. Mechanical life 500,000 cycles. Lock type Dom 4A185, head shape round, 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 GL, CSA, UL listed, DNV, BV, LROS (Lloyds register of shipping), RINA. Product standards according to EN/IEC 60947-5-5, JIS C 4520, EN/IEC 60947-5-1, UL 508, EN/IEC 60947-1, CSA C22.2 No 14, EN/IEC 60947-5-4.