The ABB 1SFA619101R1112 is a compact illuminated pushbutton designed for industrial control and signaling applications. It is a flush‑style maintained pushbutton with a green illuminated actuator, intended for use on control panels where operator input and status indication are required. It operates at 24 V AC/DC and has a single normally‑open contact. This component is part of ABB’s compact pilot device range, offering reliable performance in machinery and automation systems.