Barber Colman PC-110 Switch

The Barber Colman PC-110 is a pneumatic electric pressure switch designed to convert pneumatic pressure signals into an electrical output. With its SPDT contact configuration and field-adjustable pressure setpoint, it offers dependable performance in HVAC and pneumatic control applications. Compact and durable, the PC-110 is an essential component for integrating pneumatic systems with electrical control circuits. Now manufactured by Schneider Electric, it continues the legacy of Barber Colman’s precision-engineered control devices.

Technical Specifications
• Model: PC-110
• Type: Pneumatic Electric Pressure Switch
• Contact Type: SPDT (Single Pole Double Throw)
• Input Pressure Range: Field adjustable
• Supply Pressure: Clean, dry compressed air
• Mounting: Panel or surface mount
• Manufacturer: Barber Colman (Schneider Electric)

Key Features
• Converts pneumatic signals into electrical switching
• SPDT contact for flexible wiring and control
• Field-adjustable pressure trip point
• Compact, rugged housing for demanding environments
• Supports alarms, interlocks, and feedback systems
• Easy to install in control panels or equipment enclosures

Compatible Components & Accessories
• Pneumatic thermostats and transmitters
• Barber Colman and Schneider Electric control panels
• Relays, alarms, and signal conditioners
• Tubing, fittings, and mounting hardware

Industry Applications
• HVAC system monitoring and control
• Pneumatic-to-electric signal conversion
• Industrial automation and process control
• Building automation and energy management systems
• Equipment protection and alarm circuits

Installation & Maintenance Notes
• Mount securely in a vibration-free location
• Connect to clean, dry pneumatic supply
• Wire SPDT terminals according to control schematic
• Adjust pressure setpoint as needed using integrated dial
• Inspect periodically for pressure integrity and switch accuracy


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