Square D 9012GAW5G18 Pressure Switch 3-150 Psig Spdt-db

Product Description

The SQUARE D 9012GAW5G18 is an electromechanical pressure and level switch rated for 3 to 150 psig operating range, designed for use in hydraulic and pneumatic control systems. It features an SPDT-DB (single-pole double-throw, double-break) contact form and accepts multiple voltage inputs including 120 VAC, 240 VAC, 125 VDC, and 250 VDC with screw terminal connections. The switch carries NEMA 4, 4X, and 13 enclosure ratings, making it suitable for wet, dusty, and corrosive environments. A licensed electrician or qualified control systems technician is the typical installer for this device.

This pressure switch is built for industrial and commercial applications involving hydraulic circuits and pneumatic systems where reliable pressure-activated switching is required. Its adjustable differential pressure range of 6 to 30 psi allows technicians to fine-tune actuation points without replacing the switch. The fluid connection is 1/4 inch and the conduit entry is 1/2 inch, fitting standard plumbing and conduit infrastructure found in most mechanical rooms and control panels. Vibration-resistant construction makes it appropriate for machinery and equipment subject to continuous mechanical vibration.

Key Features

• Operating pressure range: 3 to 150 psig for broad hydraulic and pneumatic coverage
• SPDT-DB contact form supports both normally open and normally closed circuit configurations
• Adjustable differential pressure: 6 psi minimum, 30 psi maximum
• NEMA 4, 4X, and 13 ratings provide protection against water, dust, oil, and corrosive agents
• Multi-voltage compatibility: 120 VAC, 240 VAC, 125 VDC, 250 VDC
• Vibration-resistant design per IEC 68-2-6 and IEC 58-2-27 standards
• RoHS compliant; listed to UL 508 and CSA C22.2 No. 14

Compatibility

Designed for use with hydraulic systems and pneumatic systems as stated by the manufacturer. The 1/4 inch fluid port and 1/2 inch conduit connection are standard fittings compatible with typical industrial control panel and mechanical system configurations.

Installation Notes

Installation should be performed by a licensed electrician or qualified industrial control technician in accordance with NEC requirements for pressure-sensing control devices. De-energize and depressurize the system fully before making fluid or electrical connections. Use appropriately rated conduit fittings at the 1/2 inch conduit entry and verify that the supply voltage matches one of the rated input voltages before energizing. Set the differential pressure adjustment only after the system is stabilized at operating pressure.