1. 3SU1050-4BP01-0AA0 is a Siemens selector switch. It is part of the Simatic SIRIUS 3SU1 series.
2. This particular part has a toggle switch design, with a knob head and three positions. It enables the user to choose between different actions, such as on/off, start/stop, or other selections.
3. It is designed for use in harsh industrial environments, as it is made out of metal with a silver finish, and is IP67 rated for resistivity to dust, pressure, vibration, and moisture. It is also rated up to an Ambient Temperature of +55 °C.