Schneider Electric SE A500D2S11 Pressure Switch

The Schneider Electric SE A500D2S11 pressure switch is an electromechanical device for monitoring and regulating high‑pressure hydraulic systems, commonly installed in hydraulic power units, injection molding machines, presses, and other heavy industrial equipment. It employs a piston‑actuated pressure actuator with an adjustable differential to regulate between two thresholds and provides a single changeover contact (1 C/O) via screw‑clamp terminals, compatible with hydraulic oil and a G 1/4 female fluid connection. Rated up to 500 bar (7250 psi) and protected to IP66, it suits hydraulic pressure monitoring and control, system protection, retrofit, and replacement in demanding environments. The part number is A500D2S11 from Schneider Electric, with common replacements including Schneider Electric XMLB500D2S11 pressure switch, Telemecanique XML A500D2S11 pressure switch, and Schneider Electric XMLB500C2S11 pressure switch.