United Electric Controls J120-191 Pressure Switch 5A 250Vac

Description:

The United Electric Controls J120-191 Pressure Switch is used in industrial process control systems to monitor pressure and provide automatic electrical switching when preset pressure thresholds are reached. Commonly installed in pumps, compressors, hydraulic systems, oil and gas equipment, chemical processing plants, and industrial automation applications requiring reliable pressure monitoring and explosion-proof protection. Maintenance teams and system integrators use this part for repair, retrofit, expansion, or replacement of existing pressure sensing and control systems.

Applications:

The United Electric Controls J120-191 Pressure Switch is commonly used in pump protection systems, compressor control circuits, process pressure monitoring, emergency shutdown systems, safety interlocks, and industrial alarm applications. The switch utilizes a pressure-actuated sensing element to detect pressure changes and actuate electrical contacts for alarms, shutdown functions, and automatic process control, helping maintain safe and efficient operation of critical industrial equipment in hazardous environments.

Technical Specifications:

• Brand: United Electric Controls
• Part Number: J120-191
• Product Type: Pressure Switch
• Series: 120 Series
• Switch Type: Explosion-Proof Pressure Switch
• Function: Pressure Monitoring and Control
• Sensing Element: Stainless Steel Diaphragm Assembly
• Output Contacts: SPDT Snap-Action Switch
• Contact Rating: 5A @ 250 VAC
• Voltage Rating: 250 VAC
• Setpoint Adjustment: External Adjustable Setpoint
• Deadband: Adjustable Differential
• Enclosure Type: Explosion-Proof Housing
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Electrical Connection: 3/4 in. NPT Conduit Entry
• Process Connection: 1/2 in. NPT Pressure Port
• Environmental Rating: NEMA 4X / IP66
• Repeatability: ±1% of Adjustable Range
• Suitable for Air, Gas, Oil, Water, and Compatible Process Fluids
• Designed for Alarm and Shutdown Applications
• Hazardous Area Suitable
• Compatible with Pumps, Compressors, Hydraulic Systems, and Process Equipment
• Intended for OEM Equipment and Replacement Installations
• Engineered for Continuous-Duty Industrial Service

Common Replacements:

• United Electric Controls J120-192 Pressure Switch
• United Electric Controls J120-194 Pressure Switch
• United Electric Controls J120-616 Explosion-Proof Pressure Switch