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General Description:
The SIEMENS QPL25.150B is an adjustable gas pressure switch used for monitoring and controlling medium-range pressures in gas-fired systems. It activates when set thresholds are exceeded, ensuring operational safety.

Technical Specifications:

  • Adjustable Pressure Range: 5 – 150 mbar

  • Max Operating Pressure: 600 mbar

  • Operating Temperature: -15 °C … +80 °C

  • Electrical Connection: 250 V AC, 50/60 Hz, 6 A (resistive load)

  • Contact Type: 1 x SPDT (Changeover contact)

  • Protection Class: IP54

  • Connection Type: Ø6 mm hose nipple

  • Hysteresis: Approx. 2.0 – 5.0 mbar

  • Mounting Position: Preferably vertical

Applications:

  • Industrial gas systems

  • Burners and boiler units

  • Gas leakage and low-pressure monitoring

  • General gas pressure control

Advantages:

  • Wide adjustment range

  • Accurate and dependable operation

  • Compact and rugged design

  • Easy installation and setup