SIEMENS QPL25.500B 100-500 MBAR PRESSOSTAT

General Description:
The SIEMENS QPL25.500B is an adjustable gas pressure switch designed for monitoring and controlling high-range gas pressures in combustion and industrial systems. It plays a critical role in ensuring system safety by interrupting operation at excessive pressure levels.

Technical Specifications:

• Adjustable Pressure Range: 100 – 500 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: Ø6 mm hose connection

• Hysteresis: Approx. 5 – 15 mbar

• Mounting Position: Preferably vertical

Applications:

• Burners and boiler systems

• Industrial gas-fired equipment

• High pressure and gas leakage control

• Safety-critical gas monitoring systems

Advantages:

• Broad adjustment range

• Precise and reliable performance

• Compact and durable construction

• Easy to install and maintain