QPL25.150 Siemens Pressure Switch
The Siemens QPL25.150 is a compact pressure switch designed for monitoring gas or air pressures in industrial and commercial burner applications. It serves as a critical safety component that opens or changes over an electrical circuit when the pressure either falls below or exceeds a pre-adjusted switching point. This CE-approved device is engineered for integration into gas trains and is compatible with various Siemens burner controls and gas valves.
Overview
The Siemens QPL25.150 is a compact pressure switch designed for monitoring gas or air pressures in industrial and commercial burner applications. It serves as a critical safety component that opens or changes over an electrical circuit when the pressure either falls below or exceeds a pre-adjusted switching point. This CE-approved device is engineered for integration into gas trains and is compatible with various Siemens burner controls and gas valves.
Features
- Adjustable switching point allows for precise pressure monitoring tailored to specific system requirements
- Automatic reset functionality ensures the switch returns to its normal state once pressure conditions stabilize
- Compact and durable design suitable for various mounting orientations, including horizontal and vertical
- Integrated pressure test point accessible with an Allen key for simplified maintenance and verification
- Robust construction with NBR diaphragms and an IP54 protection rating for reliability in industrial environments
- Versatile compatibility with gases of gas families 1, 2, and 3, as well as hydrogen and other neutral gaseous media
Specifications
- Model: QPL25.150
- Pressure Range: 0.5 to 15 kPa (5 to 150 mbar)
- Connection: 1/4 inch ISO threaded connection
- Switching Differential: 0.6 kPa
- Maximum Operating Pressure: 50 kPa (continuously up to 69 kPa)
- Switching Voltage: AC max 250 V, DC 24 to 48 V
- Switching Current: AC max 6 A (resistive), DC max 1 A
- Temperature Range: -15 C to +60 C (operating)
- Degree of Protection: IP54
- Weight: Approximately 0.12 kg to 0.17 kg depending on specific housing options
Applications
- Supervision of air and gas pressures in the gas trains of gas-fired equipment and industrial burners
- Used as a minimum or maximum pressure monitor to ensure safe combustion processes
- Integration into complex burner systems as a safety shut-off or limit control component
- Suitable for use in HVAC systems, boiler plants, and process heating applications requiring precise gas pressure regulation
| Weight | 3 lbs |
|---|---|
| Dimensions | 2 × 2 × 2 in |
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