MAIN CHARACTERISTICS range of product HARMONY XB4 product or component type COMPLETE PUSHBUTTON device short name XB4 bezel material CHROMIUM PLATED METAL fixing collar material ZAMAK mounting diameter 22 MM sale per indivisible quantity 1 shape of signaling unit head ROUND type of operator SPRING RETURN operator profile FLUSH contacts type and composition 1 NC contact operation SLOW-BREAK connections - terminals screw clamp terminals :