Square D 9012GAR4 Pressure Switch 1.5-75 Psig Nema 7 9

Product Description

The SQUARE D 9012GAR4 is an electromechanical pressure and level switch rated for 1.5 to 75 psig, designed for use in hydraulic and pneumatic control systems. It features a single-pole double-throw with double-break (SPDT-DB) contact form and an adjustable differential pressure range of 4.5 to 15 psi, giving technicians flexibility when setting cut-in and cut-out points. The switch operates across multiple voltage ratings including 120 VAC, 240 VAC, 125 VDC, and 250 VDC at up to 6 amps. A screw terminal connection and 1/2-inch conduit connector simplify field wiring. Vibration-resistant construction supports reliable operation in demanding industrial environments. Licensed electricians and instrumentation technicians are the primary installers for this type of device.

The 9012GAR4 is suited for residential and light commercial hydraulic and pneumatic system applications where pressure monitoring and automatic switching are required. The 1/4-inch fluid connection fits standard hydraulic and pneumatic line fittings. Its NEMA 7 and NEMA 9 ratings make it appropriate for hazardous location installations where explosion-proof and dust-ignition-proof enclosures are required. This switch is commonly installed in compressor control panels, hydraulic power units, and pressure-monitored fluid systems.

Key Features

• Pressure range: 1.5 to 75 psig with adjustable differential (4.5 to 15 psi)
• SPDT-DB contact form for reliable circuit switching in both directions
• NEMA 7 and NEMA 9 rated for hazardous location use
• Compatible with 120 VAC, 240 VAC, 125 VDC, and 250 VDC systems at 6 amps
• Vibration-resistant design for use in high-cycle or mobile equipment
• Meets CE, CSA C22.2 No. 14, IEC 58-2-27, IEC 68-2-6, RoHS, and UL 508 standards

Compatibility

Designed for use with hydraulic systems and pneumatic systems as specified by the manufacturer. Suitable for installations requiring NEMA 7 and NEMA 9 rated pressure switching devices.

Installation Notes

Installation should be performed by a licensed electrician or qualified instrumentation technician in accordance with the NEC and any applicable local codes. De-energize the circuit and depressurize the system fully before connecting or disconnecting the switch. The 1/2-inch conduit entry accommodates standard rigid and flexible conduit fittings for hazardous location wiring methods. Verify the system pressure range and differential setpoint before placing the switch in service.