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Square D 9012G pressure switch, compact metal housing, grey finish, 1/4 inch FNPT port

SQUARE D

SQUARE D 9012G Pressure Switch 1.5-75PSI NEMA 1

SKU CH-NGT6-NW2MN

Adjustable pressure switch covering 1.5 to 75 psi with a 2.2 to 6.6 psi differential and NEMA 1 enclosure

  • TypeLight Switch
  • Adjustable pressure range 1.5 to 75 psi covers many applications
  • Differential 2.2 to 6.6 psi allows precise cut-in and cut-out settings
  • NEMA 1 enclosure protects contacts in indoor environments
  • Diaphragm actuation handles media temperatures from -40 to 250 degrees F
  • Rated 6 A at 120 V AC and 3 A at 240 V AC for reliable switching

Pressure Switch 9012G

The Square D 9012G is a diaphragm-actuated pressure switch designed for monitoring air or liquid pressure in industrial and commercial systems. It suits technicians and facility managers who need an adjustable cut-in and cut-out range within a NEMA 1 enclosure. The single-port 1/4-18 NPT connection fits standard piping for straightforward installation.

Thermals noise and power draw

The switch operates reliably in ambient temperatures from -10 to 185 degrees F and handles media temperatures up to 250 degrees F. It carries no fan or active cooling, so it adds no acoustic noise to the installation. Electrical load is limited to the rated contacts of 6 A at 120 V AC or 3 A at 240 V AC, with DC ratings of 0.27 A at 250 V and 0.22 A at 125 V.

Bundled accessories and software

The unit ships as a standalone switch without additional brackets, tubing or configuration software. Calibration is performed mechanically using the differential adjustment range of 2.2 to 6.6 psi across the 1.5 to 75 psi operating span. No firmware or digital tools are required, so commissioning depends only on standard hand tools and a pressure source.

Highlights

  • Adjustable pressure range 1.5 to 75 psi covers many applications
  • Differential 2.2 to 6.6 psi allows precise cut-in and cut-out settings
  • NEMA 1 enclosure protects contacts in indoor environments
  • Diaphragm actuation handles media temperatures from -40 to 250 degrees F
  • Rated 6 A at 120 V AC and 3 A at 240 V AC for reliable switching

Specifications

BrandSquare D
TypeLight Switch

Questions about this item

How do I mount this pressure switch and connect the 1/4-18 FNPT port without leaking?

Thread the 1/4-18 FNPT port into the system using pipe sealant rated for the media temperature range of -40 to 250 degrees F. Mount the NEMA 1 enclosure indoors where ambient temperature stays between -10 and 185 degrees F. The step often missed is confirming the sealant cures fully before pressurising to 75 psi.

What parts will need replacement after extended cycling?

The diaphragm that actuates at 1.5 to 75 psi with a 2.2 to 6.6 psi differential is the wear component. Over time the elastomer can harden or tear, causing the 1NO/1NC contacts to chatter or fail to switch at the set points.

At what load does the contact rating limit continuous operation?

The AC contacts are rated 6 A at 120 V and 3 A at 240 V; the DC ratings are 0.22 A at 125 V and 0.27 A at 250 V. Exceeding these currents under sustained use will overheat the contacts first.

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