SIEMENS QPL25.003B 1-3 MBAR PRESOSSTAT

General Description:
The SIEMENS QPL25.003B is an adjustable gas pressure switch designed for very low-pressure gas applications. It ensures safe and accurate monitoring in low-pressure environments.

Technical Specifications:

• Adjustable Pressure Range: 1 – 3 mbar

• Max Operating Pressure: 10 mbar

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

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

• Contact Type: 1 x SPDT (Changeover contact)

• Protection Class: IP54

• Connection Size: Ø6 mm hose connection

• Hysteresis: Very low (~0.2-0.5 mbar)

• Mounting Position: Preferably vertical

Applications:

• Low-pressure gas distribution systems

• Industrial heating setups

• Burner and boiler safety monitoring

• Gas leakage and pressure drop detection

Advantages:

• Ultra-low pressure detection

• Accurate and dependable operation

• Compact ergonomic design

• Easy installation and adjustment