Overview
The United Electric J6-S142B pressure switch is a compact, reliable pressure sensing device designed for industrial alarm, safety, and emergency shutdown applications requiring high switch sensitivity. The J6 Series is engineered for straightforward installation and dependable operation across diverse process control environments. This model combines proven mechanical design with durable construction to deliver years of service in demanding conditions.
Key Features
- Adjustable Setpoint Range: 0 to 18 PSI
- Switch Type: 1 SPDT switch output
- Proof Pressure Rating: 25 PSI
- Sealed Bellows Design: Welded 316L stainless steel bellows for corrosion resistance
- Standard Connection: 1/2″ NPTF pressure connection
- Deadband: 4″ to 7″ water column for stable operation
Technical Specifications
The J6-S142B maintains an adjustable setpoint across the full 0–18 PSI range, making it suitable for low-pressure monitoring in HVAC, refrigeration, and industrial process applications. The stainless steel bellows design ensures long-term reliability and resistance to corrosive media. Overrange protection and deadband adjustment allow for precise control and reduced nuisance trips.
Typical Applications
- HVAC and refrigeration system low-pressure alarms
- Compressed air and gas supply monitoring
- Emergency shutdown systems for pressure safety interlocks
- Water pump pressure protection and control
- Industrial process pressure sensing and alarming
Compatibility & Replacements
Compatible With
- Low-pressure monitoring systems (0–25 PSI range)
- Industrial control panels and PLC inputs
- HVAC and refrigeration controllers
- Pneumatic and compressed gas systems
- Standard electrical switchboard wiring (SPDT configuration)
Replaces / Drop-In Replacement For
The J6-S142B directly replaces other United Electric J6 models in the low-pressure range (J6-142, and similar configurations). Verify setpoint and deadband requirements with your system integrator before ordering to ensure compatibility with existing control logic.
Works With
- 24 VDC to 480 VAC control systems
- Pneumatic and mechanical control systems
- Building management systems (BMS)
- Direct panel mount or remote relay interfaces
- Pressure gauge and indicator displays
