Front element for push button Harmony ZB5. Front black, cover plastic, unlabeled. Dimensions (WxHxD) 37x37x30 mm, mounting diameter 30 mm, weight 0.03 kg. Mechanical life 1,000,000 cycles. Head shape round, flush - flat installation. 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 DNV, BV, RINA, UL listed, LROS (Lloyds register of shipping), GL, CSA. Product standards according to UL 508, EN/IEC 60947-5-4, CSA C22.2 No 14, JIS C 4520, EN/IEC 60947-1, EN/IEC 60947-5-1.