Overview

The United Electric 12SHSN3D Pressure Switch is a high-reliability industrial control device designed for hazardous and demanding process environments. Built for Division 1 / Zone 1 applications, it provides accurate pressure monitoring and switching for critical systems in oil & gas, chemical, and industrial automation.

Key Features

• Designed for hazardous area (Division 1 / Zone 1) use
• Adjustable pressure setpoint range (100 to 370 PSI)
• Hermetically sealed SPDT switch output
• Stainless steel housing for corrosion resistance
• High durability diaphragm construction
• Reliable performance in high-pressure systems

Applications

• Oil & gas process control systems
• Industrial automation and machinery
• Hydraulic and pneumatic systems
• Safety pressure monitoring systems
• Chemical and refinery operations

Technical Specifications

• Model: 12SHSN3D
• Type: Industrial Pressure Switch
• Setpoint Range: 100–370 PSI
• Deadband: 15–50 PSI
• Working Pressure: 600 PSI
• Proof Pressure: 1000 PSI
• Switch Output: SPDT, 5A resistive
• Material: Stainless steel housing
• Diaphragm: Teflon-coated polyimide (Kapton)
• O-Ring: Buna-N
• Process Connection: 1/2″ NPTF
• Conduit Connection: 1/2″ NPTM
• Hazard Rating: Division 1 / Zone 1