United Electric Controls J402-571 Pressure Switch 0-50 PSI 0-3.4 BAR 1/4 NPTF

Description:

The United Electric Controls J402-571 Pressure Switch is used in industrial process control, hydraulic systems, pumps, compressors, and equipment protection applications to monitor pressure and provide automatic electrical switching when preset pressure conditions are reached. Commonly installed in manufacturing facilities, water treatment systems, hydraulic power units, utility services, and industrial automation equipment requiring reliable pressure monitoring and control. 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 J402-571 Pressure Switch is commonly used in pump control systems, compressor protection circuits, hydraulic machinery, process monitoring installations, pneumatic control systems, and industrial safety shutdown applications. The switch converts pressure changes into electrical switching actions for alarms, shutdown functions, interlocks, and automatic equipment control, helping maintain safe and efficient operation of critical industrial systems.

Technical Specifications:

• Brand: United Electric Controls
• Part Number: J402-571
• Product Type: Pressure Switch
• Series: 400 Series
• Switch Type: Industrial Pressure Switch
• Pressure Range: 0 to 50 PSI
• Pressure Range Metric: 0 to 3.4 Bar
• Function: Pressure Monitoring and Control
• Pressure Sensing Element: Diaphragm Actuated Mechanism
• Output Contacts: Dual SPDT Snap-Action Switches
• Electrical Rating: 15A @ 125/250/480 VAC Resistive
• Setpoint Adjustment: External Reference Dial
• Process Connection: 1/4 in. NPTF Female
• Repeatability: Industrial Process Control Accuracy
• Enclosure Type: NEMA 4X Weatherproof Housing
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Suitable for Air, Water, Oil, and Compatible Non-Corrosive Fluids
• Designed for Alarm and Shutdown Applications
• Compatible with Pumps, Compressors, and Hydraulic Equipment
• Intended for OEM Equipment and Replacement Installations
• Suitable for Maintenance, Retrofit, and Repair Projects
• Engineered for Continuous-Duty Industrial Service

Common Replacements:

• United Electric Controls J402-555 Pressure Switch
• United Electric Controls J120-194 Pressure Switch
• United Electric Controls H100-191 Pressure Switch