Schneider Electric GFW-1 Pressure Switch

The Schneider Electric GFW-1 Pressure Switch, marketed under Square D, is an electromechanical pressure switch designed to monitor and control circuits in hydraulic power units, marine systems, compressors, and industrial process machinery by actuating at set pressure thresholds. It belongs to the Class 9012 Series C and carries model/part number 9012-GFW-1, offering a pressure range of 20 to 1000 psig with a maximum allowable pressure up to 10,000 psig. The switch uses SPDT snap-action contacts rated up to 600 VAC/DC and 10 A, with a 1/4 in FNPT process connection, suitable for both panel and pipeline mounting. Sensing is diaphragm- or piston-actuated with fixed or adjustable setpoints, and the enclosure is available in stainless steel or industrial-grade metal housing to withstand demanding environments. UL, CSA, and CE compliance underpin its industrial reliability, and it's commonly used in hydraulic systems, marine vessels, process control installations, and heavy machinery to protect equipment from overpressure and ensure safe operation.