Description
The United Electric H400K-456 Differential Pressure Switch used to monitor and control the pressure in HVAC systems. Having an SPDT switch type and a pressure range of 2–20 PSI, it is used to monitor the difference between two pressure points to generate alarms or perform actions. Located in a NEMA 4 weatherproof housing, it is suitable for use indoor or outdoor conditions. This switch is applied in HVAC equipment such as air handlers, chillers, and filter monitoring systems to control airflow and protect the system. It has advantages such as increasing the safety of the system, efficiency of energy use.
