Front element for push button Harmony ZB5. Front blue, cover plastic, arrow up and down. Dimensions (WxHxD) 29x29x28 mm, mounting diameter 22 mm, weight 0.017 kg. Mechanical life 5,000,000 cycles. Head shape round. With high vibration resistance and chemical resistance, ambient temperature -40 to +70 degrees C. The modular plastic range with 22mm installation dimension combines easy installation, efficiency, modern design, flexibility with maximum robustness. Certifications according to GL, BV, RINA, LROS (Lloyds register of shipping), CSA, UL listed, DNV. Product standards according to CSA C22.2 No 14, UL 508, JIS C 4520, EN/IEC 60947-1, EN/IEC 60947-5-1, EN/IEC 60947-5-4.