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The Factory-set Pressure Switch 903

Introducing our Factory-Set Pressure Switch, designed for precise monitoring of liquid and gaseous media overpressure. Crafted by expert manufacturers, this cutting-edge device comes pre-set with accurate pressure settings and switching differentials for hassle-free installation. Ideal for industries requiring meticulous pressure monitoring, it ensures reliable performance and is suitable for various applications. Enhance its capabilities with our user-friendly Product Configurator and a range of Accessories. Maximise efficiency and safety with this dependable solution for pressure management.

Factory Set Pressure Switch 903 Product Parameters

  • Pressure Ranges: Overpressure type (903.10) with factory-set trip pressure between 2 and 5 mbar; Vacuum type (903.20) with factory-set trip pressure between -2 and -5 mbar.
  • Accuracy: Tolerance band of trip pressure is ±10%.
  • Electrical Connections: Tab terminal 6.3 mm x 0.8 mm in accordance with DIN 46244.
  • Process Connections: Combined hose and threaded connection: 6.5 mm and G1/4, PPS (Polyphenylensulfid).
  • Media Compatibility: Suitable for monitoring overpressure of liquid and gaseous media.
  • Special Features: Operating temperature range from -20°C to 85°C, IP00 protection without cap, and upgradable to IP54/IP65 with protection cap. Protection class II is achievable with a protection cap.

     

Product Highlights

The Factory-Set Pressure Switch 903 is a versatile and reliable regulating and control unit with a temperature range of -20°C to 85°C. Its NBR diaphragm ensures durability. The standard version handles max. 6A (1.5A) at 250VAC, 10A (2A) at 250VAC, and 2A at 24VDC. The low-voltage version supports max. 100mA at 24VAC and 30mA at 24VDC. It connects via a tab terminal (6.3mm x 0.8mm) as per DIN 46244. The pressure connection combines hose and threaded connections (6.5mm and G1/4, PPS). Damping options include restrictors of 0.3/0.5/0.8mm. IP00 without a protection cap, or IP54/IP65 with the cap, depending on the model. Protection Class II requires an accessory protection cap. The switch suits equipment installation, with protection class determined by the equipment’s construction and type of installation. Please read instructions carefully before use and ensure compliance with applicable regulations. Conforms to EU Low Voltage Directive and EU RoHS Directive.

Applications

  • Wastewater technology 
  • Liquid level measurement
  • Pump control
  • Medical technology
To download the latest datasheet click here: The Factory-Set Pressure Switch 903

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