Square D 9012 GNG-5 is an electromechanical pressure switch with SPDT contacts, designed for indoor industrial control applications and housed in a NEMA 1 enclosure. It operates over a 3 to 150 psi pressure range and provides a single-pole, double-throw output, with a 1/4 in NPTF fluid connection and a 1/2 in conduit entry for wiring. The unit supports multiple line voltages, including 120 VAC, 125 VDC, 240 VAC, and 250 VDC, and is part of Square D’s 9012G family, typically specified with a differential of roughly 4.2 to 22 psi for low-pressure, single-stage operation.
