MAIN CHARACTERISTICS range of product HARMONY XB4 product or component type HD F NON-ILLUM PUSHBUTTON device short name ZB4 bezel material BLACK METAL mounting diameter 22 MM sale per indivisible quantity 1 shape of signaling unit head ROUND type of operator SPRING RETURN operator profile BLACK FLUSH UNMARKED COMPLEMETARY CHARACTERISTICS CAD overall width 29 MM CAD overall height 29 MM CAD overall depth 28 MM mechanical durability 10000000 CYCLES electrical composition code C1 FOR