The Johnson Controls P100CA-2 is a high-pressure encapsulated pressure control designed for direct-mount applications in commercial refrigeration and HVAC systems. This SPST pressure switch features open on pressure rise logic, specifically calibrated to open at 425 PSIG and automatically reset (close) at 325 PSIG. Engineered for automatic reset functionality, the P100CA-2 ensures reliable high-limit protection without the need for manual intervention after a pressure surge. The open construction design facilitates straightforward direct mount installation via a 1/4 inch SAE female flare nut, providing a secure, leak-resistant connection to the high-side service port. With 120/240 Vac contact ratings, this control is highly versatile across various voltage requirements, serving as a drop-in replacement for the P100CA-2C. This robust HVAC pressure switch is built to withstand rigorous cycling, ensuring precise setpoint accuracy for long-term system health and compressor protection. Direct Mount Integration: Features a 1/4 inch flare nut for quick installation on standard service valves, reducing leak points compared to capillary tubes. Precise High-Limit Protection: Factory-calibrated 425 PSIG cutout ensures system components stay within safe operating envelopes. Automatic Reset Logic: The 100 PSI differential allows for system stabilization before the 325 PSIG cut-in, preventing rapid cycling. Hermetically Sealed: The encapsulated design protects internal contacts from environmental contaminants, moisture, and vibration. Interchangeable Design: Fully compatible with P100CA-2C specifications for simplified inventory and field replacement. Common Questions What is the difference between the P100CA-2 and the P100CA-2C? Technically, the P100CA-2 and P100CA-2C are identical in performance, setpoints, and electrical ratings. They are interchangeable in all standard applications. Can this pressure control be used on the suction side of the system? No, this specific model is calibrated for high-pressure monitoring. Using a 425 PSIG cutout on a suction line would fail to provide the necessary low-pressure protection. Does this switch require a separate mounting bracket? This is a direct-mount control, designed to be threaded directly onto a 1/4 inch SAE flare fitting, eliminating the need for external brackets or capillary extensions. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
