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901 Prescal Gas Pressure Switch

Introducing our state-of-the-art Adjustable Pressure Switch designed to monitor overpressure in combustible gases of city gas (family 1), natural gas (family 2), and LPG (family 3). This cutting-edge switch features a convenient scaled adjustment knob, allowing easy customisation of trip and reset pressures without the need for a screwdriver. With precision engineering and safety as our top priorities, our pressure switch ensures reliable and accurate monitoring of gas systems. Experience hassle-free pressure control and enhanced safety with our user-friendly Adjustable Pressure Switch. Simplify your gas monitoring needs today!

Gas Pressure Switch 901 Product Parameters

  • Pressure Ranges: Various types with ranges from 5 to 500 mbar, including 901.61 (5-20 mbar), 901.62 (10-50 mbar), 901.63 (25-100 mbar), 901.64 (50-250 mbar), and 901.65 (100-500 mbar).
  • Accuracy: Deviation and drift of switching pressure are both ≤ ±15% of the set pressure.
  • Electrical Connections: Options include a tab terminal 6.3 mm x 0.8 mm in accordance with DIN 46244 and various threaded connectors like M 10×1, G 1/8, G 1/4, or G 1/2 of Brass (CuZn40).
  • Media Compatibility: Suitable for monitoring the overpressure of combustible gases like city gas, natural gas, and LPG.
  • Special Features: Offers temperature ranges for ambient, media, and storage from 0 to +80°C and -40 to +80°C, respectively, with protection levels ranging from IP00 to IP54/IP65 depending on the used protection cap. Protection class II is achievable with a protection cap.


Product Highlights

The Gas Pressure Switch 901 Prescal® is a versatile device designed to monitor and control gas pressure. It offers various setting ranges for the upper switching point, from 5 mbar to 500 mbar, allowing precise adjustments for specific needs. The diaphragm, made of NBR material, ensures durability in challenging conditions. Operating within a temperature range of 0 to +80°C for both ambient and media temperature, it suits various environments. The pressure connection, constructed with brass and available in different threads, ensures compatibility with different systems. The electrical rating ranges from max. 6 (1,5) A / 250 VAC in the standard version to max. 100 mA / 24 VAC in the low voltage version. Users can choose from different protection classes (IP44 / IP54 / IP65) and add a protection cap for higher protection class II. The Gas Pressure Switch 901 Prescal® provides a dependable and adaptable solution for managing gas pressures in industrial applications.


  • Adjustable pressure switch for monitoring the overpressure of combustible gases of the gas families:
    • City gas
    • Natural gas
    • LPG
To download the latest datasheet click here: Gas Pressure Switch 901 Prescal

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