Front element for key switch Harmony ZB4. Front black, cover black metal. 3 positions +/- 45°, key removal left and right. Dimensions (WxHxD) 29x29x72 mm, mounting diameter 22 mm, weight 0.098 kg. Mechanical life 1,000,000 cycles. Lock type Ronis 455, 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 by UL, LROS (Lloyds register of shipping), DNV, GL, BV, RINA, CSA. Product standards according to GB 14048.5, UL 508, CSA C22.2 No 14, EN/IEC 60947-1, EN/IEC 60947-5-1, EN/IEC 60947-5-4, EN/IEC 60947-5-5.