Front element for push button Harmony ZB5. Front black, cover plastic, T. This button head offers an ergonomic surface for controlling your machines. Dimensions (WxHxD) 29x29x28 mm, mounting diameter 22 mm, weight 0.018 kg. The clear coloring and marking make it easy to recognize from a distance. Mechanical life 1,000,000 cycles. Head shape round, standard. With high vibration resistance and chemical resistance, ambient temperature -40 to +70 degrees C. The modular plastic program with 22 mm installation dimension combines easy installation, efficiency, modern design, flexibility with maximum robustness. Certifications according to RINA, UL listed, BV, CSA, DNV, LROS (Lloyds register of shipping), GL. Product standards according to UL 508, CSA C22.2 No 14, EN/IEC 60947-5-4, EN/IEC 60947-5-1, EN/IEC 60947-1, JIS C 4520.