P100CA-1C Johnson Controls Pressure Control

Overview

The Johnson Controls P100CA-1C is a compact, economical, and rugged encapsulated pressure control switch engineered for direct-mount installation in commercial and industrial HVAC and refrigeration systems. It provides dependable high-side pressure protection, automatically opening its electrical contacts on a pressure rise to safeguard compressors and circuits from over-pressure conditions. Designed as a legacy device, this model is slated for replacement by the P100CP-1C model.

Features

• Compact and lightweight design allows direct mounting to refrigeration piping without remote sensing bulbs or capillary tubes.
• Tamper-proof, factory-calibrated pressure setpoints ensure accurate and repeatable performance.
• Single-Pole Single-Throw (SPST) open-on-rise switching configuration provides straightforward high-pressure cut-out.
• Automatic reset resumes normal operations once system pressure drops below the reset threshold.
• Sealed encapsulation protects internal components from moisture, dust, and environmental contaminants.

Specifications

• Cut-Out (Open) Set Point: 400 PSIG
• Cut-In (Close) Set Point: 300 PSIG
• Reset Type: Automatic Reset
• Switch Configuration: SPST (Open on Pressure Rise)
• Voltage Rating: 120/240 VAC at 50/60 Hz
• Burst Pressure: 3,500 PSI
• Operating Ambient Temperature: -20°F to 150°F (-29°C to 66°C)
• Refrigerant Temperature Rating: -65°F to 275°F (-54°C to 135°C)
• Ambient Humidity: 0 to 95% RH non-condensing

Applications

• High-limit pressure cut-out protection in commercial and industrial HVAC systems.
• Condenser fan cycling control to maintain proper operating pressures.
• Safeguarding compressors and refrigeration circuits in commercial food service equipment, ice machines, and commercial refrigeration systems.