Overview
The Square D 9012-GAW-5 pressure switch is an electromechanical, adjustable-differential pressure switch designed for industrial pneumatic and hydraulic control applications. This SPDT-DB switch handles 3 to 150 psi operation with 6 to 30 psi differential and 475 psi maximum allowable pressure. It features a zinc plated steel flange material with water-tight, dust-tight, oil-tight, and corrosion-resistant construction suitable for indoor/outdoor environments and NEMA 4/4X/13 enclosure types.
Key Features
- Electromechanical construction with 1NO-1NC SPDT-DB contact configuration
- Adjustable pressure switch differential from 6.0 to 30 psig with maximum allowable pressure of 475 psig
- Maximum voltage rating of 600V with zinc plated steel flange material
- Water-tight, dust-tight, oil-tight, and corrosion-resistant environmental protection
- Rated for 6 A at 120 VAC and 0.27 A at 250 VDC contact
- 5,000,000 cycle operating life
Technical Specifications
- Operating Range: 3 to 150 psig (0.21 to 10.3 bar)
- Adjustable Differential: 6 to 30 psi
- Maximum Allowable Pressure: 475 psig (33 bar)
- Contact Configuration: SPDT-DB (1NO-1NC)
- Electrical Rating: 6 A at 120 VAC / 0.27 A at 250 VDC
- Voltage Rating: 600V
- Operating Life: 5,000,000 cycles
- Connection: 1/4″-18 NPTF
- Material: Zinc plated steel flange
- Environmental Protection: Water-tight, dust-tight, oil-tight, corrosion-resistant
- Enclosure Type: NEMA 4/4X/13
- Termination: Screw clamp terminals, panel/chassis mount
Typical Applications
The 9012-GAW-5 is widely used in pneumatic and hydraulic control systems including:
- Air compressor pressure monitoring and automatic shutoff control
- Hydraulic system overpressure protection
- Water pump and well system pressure regulation
- Industrial machinery lubrication pressure sensing
- HVAC systems and refrigeration pressure control
- Plant automation and process control circuits
Compatibility & Replacements
Compatible With
- Pneumatic and hydraulic control systems operating up to 150 psig
- NEMA 4/4X/13 enclosure applications requiring pressure monitoring
- 24/120/240 VAC control circuits (600V rated)
- Industrial automation PLCs and motor control centers
- Standard panel and chassis mounting configurations
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 9012-GAW-5 is a Series C variant; similar models in the 9012 family include the 9012-GAW-6 (5–250 psig range, 750 psig max). Always confirm pressure range and electrical specifications match your application requirements.
Works With
- Standard industrial 120/240 VAC motor control circuits
- 24 VDC low-voltage logic systems
- Pneumatic/hydraulic solenoid valve control
- Relay and contactor networks
- PLC analog/digital input modules (via relay contact closure)








