Front element for key switch Harmony ZB4. Front black, cover chrome-plated metal. 2 positions 90°, key removal in any position. Dimensions (WxHxD) 29x29x72 mm, mounting diameter 22 mm, weight 0.098 kg. Mechanical life 1,000,000 cycles. Lock type Ronis 458A, latching, head shape round, standard. With high vibration resistance and chemical resistance, ambient temperature -40 to +70 degrees C. The modular metal program with 22mm installation dimension combines easy installation, efficiency and modern design. Certifications listed according to UL, CSA, GL, BV, LROS (Lloyds register of shipping), DNV, RINA. Product standards according to GB 14048.5, UL 508, EN/IEC 60947-1, EN/IEC 60947-5-1, CSA C22.2 No 14, EN/IEC 60947-5-5, EN/IEC 60947-5-4.