Front element for push button Harmony ZB5. Front blue, plastic cover, up and down arrows. 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 10000000 cycles. Head shape round, standard. The modular plastic range with 22 mm installation dimensions combines easy installation, efficiency, modern design, flexibility with maximum robustness.