United Electric H100-524 SPDT Pressure Switch 2.5"-50" WC NEMA 4X

The United Electric H100-524 Pressure Switch is an electrical circuit control component that operates with an SPDT switch configuration, an adjustable range of 2.5 to 50 water column pressure, and a NEMA 4X enclosure for in-air handling and ventilation HVAC systems. It works based on a pressure-sensing diaphragm, which reacts to the variation in the air or gas pressure and opens or closes contacts in response. It is attached to electrical wiring and pressure tubing and is secured in the duct, or control system interface. This pressure management, system safety and stable performance in different circumstances.