York S1-024-25994-000 Pressure Switch 0.50" WC SPNO Close On Fall

The York S1-024-25994-000 Pressure Switch is used in HVAC systems to monitor and control pressure levels.This pressure switch has a single pole normally open contact and can only open when the pressure is below 0.50” of Water Column. Its dimensions are 3.75 x 4.75 x 3.75”, which makes the switch small but suitable for different HVAC arrangements.The switch measures pressure and turns the system on or off depending on the pressure. When pressure is below the set level, the switch makes the circuit to close so that the system is assured of giving the correct response to pressure hence operating efficiency and safety is achieved.