What is a pressure limit switch?

A pressure limit switch is a device used to monitor and control pressure levels in various systems, such as HVAC, refrigeration, and industrial equipment. It activates or deactivates equipment when pressure reaches predetermined thresholds, ensuring safe operation and preventing damage. These switches can be set for both high and low-pressure limits, providing essential protection and operational efficiency. They are commonly used to automate processes and enhance safety in fluid and gas systems.