UNITED ELECTRIC CONTROLS J21K-S150B PRESSURE SWITCH J21K SERIES

Description:

The United Electric Controls J21K-S150B Pressure Switch is used in industrial process control, hydraulic systems, compressors, pumps, and critical equipment protection applications to monitor pressure and provide automatic electrical switching when preset pressure conditions are reached. Commonly installed in oil and gas facilities, power generation plants, chemical processing systems, hydraulic power units, and industrial automation equipment requiring reliable pressure monitoring in hazardous environments. 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 J21K-S150B Pressure Switch is commonly used in compressor control circuits, pump protection systems, hydraulic machinery, process monitoring installations, pneumatic systems, and industrial safety shutdown systems. Its rugged construction and dependable switching mechanism provide pressure-actuated control for alarms, interlocks, shutdown functions, and automatic process regulation in demanding industrial applications.

Technical Specifications:

• Brand: United Electric Controls
• Part Number: J21K-S150B
• Product Type: Pressure Switch
• Series: J21K Series
• Switch Type: Industrial Pressure Switch
• Function: Pressure Monitoring and Control
• Pressure Sensing Element: Bellows/Piston Actuated Mechanism
• Output Contacts: SPDT Snap-Action Switch
• Electrical Rating: 15A @ 125/250/480 VAC Resistive
• Setpoint Adjustment: Internal Adjustable Setpoint
• Repeatability: Industrial Process Control Accuracy
• Enclosure Type: NEMA 4X Weatherproof Housing
• Housing Material: Epoxy-Coated Die-Cast Aluminum
• Process Connection: 1/4 in. NPT Pressure Port
• Electrical Connection: Conduit Hub Entry
• 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 J120-192 Pressure Switch
• United Electric Controls J120-194 Pressure Switch
• United Electric Controls H122-S146B Pressure Switch