The CARLO GAVAZZI PB22SIF0R is a robust and versatile flush round pushbutton switch designed for industrial applications. Available in standard and bezel styles, it offers self-hold or spring return action and a choice of button colors. The illuminated version utilizes an LED for clear indication. Certified to UL 508, IEC/EN 60947-5-1, and other relevant standards, this pushbutton is ideal for starting/stopping electrical circuits and controlling various devices like lamps and motors. It is designed to be ordered in parts (operator, holder, and contact block) and installed within an enclosure.