Siemens 6DR5020-0NG30-0AB0 SIPART PS2 Smart, electropneumatic positioner, 4…20 mA, Ex/nEx, double-acting, with polycarbonate housing, for pneumatic linear and part-turn actuators. Non-contact (wear-free) position sensing (NCS). Standard: Not explosion-protected. Electrical connection thread: M20x1.5 / pneumatic: G 1/4. Mechanical limit switches (MLS), 2 mechanical limit switches and 1 digital output. Not suitable for natural gas applications. Optional M12 connector c