The specified pressure applies per cycle and occasionally. OsiSense XMLA pressure switch. Schneider Electric XMLA pressure switches for control circuits are used to monitor the pressure of hydraulic oils, fresh water, seawater, air, steam, corrosive liquids, or viscous products. The XMLA pressure and vacuum switches have a fixed differential and are designed for the detection of a single threshold. Fixed differential, external pressure adjustment window available, snap contacts: 1 normally closed and 1 normally open. Temperature range: –25 to +70 °C. Protection class: IP65 with plug connector, IP66 with terminal connections. Operating rate: up to 120 switching cycles per minute for membrane and 60 per minute for piston. Media connection: 1/4 inch NPT. Conduit connection: 1/2 inch NPT.