Description
The United Electric J400K-456 SPDT Pressure Switch 0-20 PSI NEMA 4X is used to protect against conditions that measure the pressure level and operate electrical circuits by opening or closing contacts depending on preset pressure levels in air handling, pumping, and process HVAC systems. It works with the supports of a diaphragm-based sensing mechanism, that reacts to the variations in pressure and opens or closes the internal switch. It is mounted on pressure lines or system interfaces and is connected to piping and control wiring. Its operation supports to provide precise pressure regulation equipment security, and a consistent system.
