Schneider Electric 9012 CNG-4 Pressure Switch

Schneider Electric's Square D 9012GNG4 Pressure Switch is an industrial pressure-switch device in the 9012G family that uses SPDT contacts to switch a control circuit in response to process pressure. It is rated for up to 480 VAC and 10 A, making it suitable for pumps, compressors, and HVAC equipment in commercial and light‑industrial settings. The unit offers a setpoint range from 1.5 to 75 psi with a 1/4" port connections for straightforward integration into standard piping, allowing precise on/off control as pressure crosses the selected threshold. The 9012GNG4 variant is part of the broader 9012G lineup, which includes models with either adjustable or fixed differential, and is commonly used to automate equipment such as water pumps, irrigation systems, and air handling or other pressure‑based control tasks in control panels and equipment enclosures.