Schneider Electric Telemecanique 9012GCW-2 Pressure Switch

The Schneider Electric Telemecanique 9012GCW-2 is an adjustable-differential electromechanical pressure switch that monitors hydraulic and pneumatic system pressure and actuates electrical circuits at setpoints. Part of the 9012G series, the 9012GCW-2 offers a 90 to 2900 psi adjustable pressure range and a maximum pressure rating of 15,000 psi. It uses SPDT contacts (1 NO / 1 NC) with snap-action silver-nickel contacts and a piston-type pressure actuator. Electrical connections are screw-clamp terminals on a 4-terminal block; pressure connection is 1/4 in. 18 NPTF, and the enclosure is die-cast aluminum alloy. The device is certified to UL 508, CSA C22.2 No. 14, and CE standards for use in industrial environments. Commonly installed in hydraulic power units, air compressors, pumping systems, process control equipment, and manufacturing machinery, it provides reliable pressure sensing with adjustable differential between the two thresholds. Applications span hydraulic, pneumatic, and industrial process control systems where accurate pressure regulation safeguards equipment and optimizes operation. Common replacements include Schneider Electric 9012GCW1, 9012GCWM2, and Allen-Bradley 836T series.