120-605

This high-performance HVAC pressure control switch is designed to monitor and regulate system pressure, ensuring safe and efficient operation of your heating and cooling equipment. As a critical air-proving and safety component, this pressure switch acts as a high-pressure cutout to protect the compressor and other vital parts from damage caused by excessive internal pressure. It is engineered to automatically open the circuit at 380 PSI and close it once the system returns to a safe operating level of 300 PSI. This durable replacement part is essential for maintaining the reliability of commercial rooftop units, central air conditioners, and heat pump systems, helping to prevent costly equipment failures and downtime.
Type: Air Pressure Switch / High Pressure Control
Size: Small
Application: Used in commercial and residential HVAC units, rooftop systems, and split-system air conditioners for pressure-sensitive safety shutoff and compressor protection.
Specifications: Open Pressure: 380 PSI; Close Pressure: 300 PSI; Switch Type: Pressure-actuated high-limit cutout; Reset Type: Automatic.