United Electric J21K-150 Pressure Switch Refrigerant Always verify that 24V power

Always verify that 24V power is reaching the valve terminals from the control board before determining the valve itself is faulty

Common Questions Can this be used on 5 PSI systems

Chemical-Resistant Seating: The Teflon PFA seat ensures a tight seal and resists degradation from common steam system additives

Solid Construction: Built for continuous duty cycles to handle the inductive loads of residential fan motors

United Electric J21K-150 Pressure Switch Refrigerant Always verify that 24V powerThe United Electric J21K 150 is a rugged, NEMA 4 differential pressure switch engineered for precision monitoring in demanding HVACR and industrial process environments. This unit features an adjustable differential pressure range of 0 to 40 PSID, utilizing a high sensitivity opposing metal bellows design to detect pressure variances between two sources. The SPDT snap action switch output provides versatile control logic, rated for 15A at 125 250 480