SIRIUS ACT - Performance in Action Powerful machines and plants need powerful pushbuttons, switches and indicators: SIRIUS ACT offers you a unique range of small, best-in-class products that set great things in motion. From pushbuttons to indicator lights, all products are made of real metal and high-quality plastic, boasting new functionalities and communicative connection. A push of a button is not just a push of a button for us. Pushbutton, 22 mm, round, plastic, blue, pushbutton, flat, locking, pressure release