The Barber Colman PC-141 is a pneumatic electric pressure switch engineered to convert pneumatic pressure signals into electrical outputs for control and monitoring systems. With its SPDT contact configuration and field-adjustable setpoint, the PC-141 offers reliable operation in HVAC, building automation, and industrial environments. Compact and durable, it ensures seamless integration between pneumatic and electrical control systems. Now supported by Schneider Electric, the PC-141 continues the trusted Barber Colman legacy.
Technical Specifications
• Model: PC-141
• Type: Pneumatic Electric Pressure Switch
• Contact Type: SPDT (Single Pole Double Throw)
• Input Pressure Range: Field adjustable (typically up to 30 psi)
• Supply Pressure: Clean, dry compressed air
• Mounting: Panel or surface mount
• Manufacturer: Barber Colman (Schneider Electric)
Key Features
• Converts pneumatic pressure into electrical signal output
• SPDT contact allows for flexible wiring configurations
• Field-adjustable pressure setpoint
• Compact, rugged design for demanding environments
• Ideal for interlocks, alarms, and status indication
• Compatible with legacy and modern control systems
Compatible Components & Accessories
• Pneumatic thermostats and transmitters
• Electrical relays, alarms, and controllers
• Barber Colman and Schneider Electric systems
• Tubing, fittings, and mounting accessories
Industry Applications
• HVAC pneumatic-electric integration
• Industrial automation and safety circuits
• Building automation and energy management
• Equipment status and alarm signaling
• Control system retrofits and upgrades
Installation & Maintenance Notes
• Mount in a secure, vibration-free location
• Use clean, dry air supply to maintain accuracy
• Wire SPDT terminals per control diagram
• Set desired pressure threshold using adjustment screw
• Inspect regularly for reliable switching and pressure consistency
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.