Pressure switches SR...
Pressure switches SR.. are capable of sensing tiny pressure changes. Pressure switches SR.. can control the flow of the aerator, the operation of the fan, and filter contamination in a ventilation system. Pressure switches SR.. are also suitable for overheat protection in industrial cooling systems.
TECHNICAL DATA
- Contact voltage: 250 VAC.
- For differential pressure measurement.
- Protection class: IP54.
- Max. operating pressure: 5kPa.
- Measured gases: air, non-combustible, and non-aggressive gases.
- Operating temp. range: -40 °C to 85 °C.
- Mounting: in any vertical position.
- Pressure connections: 2 plastic pipe connection pieces(P1 and P2), external diameter 6.0 mm; P1 for connection to higher pressure (marked +) P2 for connection to lower pressure(marked -).
- Electric contact: SPDT.
- Tolerance: 15%.
- Weight: 140 g.
- Contact electrical rating:
- Resistance: initial-<400milliohms.
- Current: 1.5A (0.4A) /250 V.



