Overview
The United Electric J6-S134B is a rugged electromechanical pressure and vacuum switch built for demanding industrial control and safety applications. This J6 Series switch offers a setpoint range of 30″ Hg Vac to 20 psi, one SPDT contact, 15A capacity at 125/250/480 VAC, 1/2″ FNPT electrical connector, NEMA 4X enclosure, welded 316LSS bellows, and 1/2″ FNPT stainless-steel pressure connector with internal adjustment. The J6-S134B is ideal for applications requiring high switch sensitivity and independent operation free from control system dependency.
Key Features
- Simple to install and operate for alarm, safety and emergency shutdown applications; operates independently of the control system and switches reliably when called upon
- NEMA 4X corrosion-resistant stainless-steel enclosure for harsh industrial environments
- 316LSS welded bellows and 1/2″ FNPT stainless-steel pressure connector for durability
- Single pole double throw (SPDT) contact configuration for flexible control logic
- Internal adjustment allows field setpoint tuning without external tools
- Typical applications include controlling pumps, monitoring instrument air, HVAC systems, and gas processing
Technical Specifications
- Pressure Range: 30″ Hg Vac to 20 PSI (approximately 172 kPa)
- Electrical Rating: 15A @ 125/250/480 VAC
- Contact Configuration: 1 SPDT (Single Pole Double Throw)
- Enclosure: NEMA 4X stainless steel
- Sensing Element: Welded 316LSS bellows
- Electrical Connector: 1/2″ FNPT
- Pressure Connector: 1/2″ FNPT stainless steel
- Adjustment: Internal, field-adjustable setpoint
- Series: J6 (compact industrial pressure/vacuum switch)
- Switch Action: Electromechanical
Typical Applications
The J6-S134B is used in controlling pumps, monitoring instrument air, HVAC systems, and gas processing applications. Its vacuum-rated bellows and low-pressure setpoint make it suitable for:
- Vacuum pump or compressor shutdown and alarm control
- Instrument air quality and pressure monitoring
- HVAC system pressure supervision
- Low-pressure gas distribution networks
- Safety interlocks requiring independent electromechanical operation
Compatibility & Replacements
Compatible With
- Industrial control systems requiring discrete low-voltage pressure/vacuum inputs
- Standalone alarm and safety shutdown circuits
- PLC safety modules and emergency stop chains
- HVAC and pneumatic system controllers
- Pump and compressor protection systems
Replaces / Drop-In Replacement For
The J6-S134B is part of the United Electric J6 Series and may replace other vacuum-rated J6 models with similar setpoint requirements. For verified interchangeability with competitor brands or specific legacy models, consult United Electric technical support or your system integrator.
Works With
- 24 VDC control circuits via relay/contactor interface
- 120/240 VAC industrial automation networks
- Hardwired safety control circuits (no software dependency)
- Pneumatic and hydraulic control systems
- HVAC building management systems
