Siemens Compact Pressure Switches QPL
Product Description
Siemens QPLx5 Compact Pressure Switches for Gas and Air Pressure Control
Siemens QPLx5 compact pressure switches are engineered to supervise gas and air pressure in gas supply trains and gas-fired burner installations. When the monitored pressure crosses the selected switching threshold, the device interrupts or changes over the associated electrical circuit, allowing the connected system to respond to pressure conditions.
The QPLx5 series offers adjustable pressure switching settings and an automatic reset mechanism. A sturdy plastic enclosure combined with a die-cast aluminum base provides mechanical durability. These devices can be configured for either low-pressure or high-pressure monitoring according to system requirements.
Key Features
- Pressure supervision for gas and air systems
- Suitable for minimum and maximum pressure monitoring
- User-adjustable pressure switching threshold
- Automatic reset operation
- Selectable pressure ranges extending up to 50 kPa, depending on model
- Maximum continuous operating pressure of 72 kPa
- IP54-rated enclosure protection
- Heavy-duty plastic housing with a die-cast aluminum base
Typical Applications
- Gas-fired burner equipment
- Gas supply trains
- Industrial combustion control installations
- Gas and air pressure supervision in industrial processes
Connection Configurations
- QPL15: O-ring connection
- QPL25: 1/4-inch threaded connection
Specifications
Siemens Compact Pressure Switches QPLx5 Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Series | QPLx5.xxxB |
| Product Type | Compact Pressure Switch |
| Connection Models | QPL15 (O-ring) / QPL25 (1/4-inch thread) |
| Application | Gas and Air Pressure Monitoring |
| Monitoring Type | Minimum and Maximum Pressure |
| Maximum Operating Pressure | 72 kPa |
| Adjustable Pressure Range | 0.1–50 kPa, depending on model |
| Switching Voltage | AC Max. 250 V / DC 24–48 V |
| Maximum AC Switching Current | 6 A (cos φ = 1) / 2 A (cos φ = 0.6) |
| Maximum DC Switching Current | 1 A |
| Minimum Switching Current | 20 mA |
| Switching Pressure Deviation | ±15% of setpoint |
| Reset Function | Automatic Reset |
| Protection Rating | IP54 |
| Safety Class | Class II |
| Operating Temperature | -15 to +60 °C |
| Storage Temperature | -20 to +80 °C |
| Relative Humidity | Below 95% RH |
| Mounting Position | Horizontal or Vertical (Not Suspended) |
| Housing Material | Plastic Housing with Die-cast Aluminum Base |
| Designed Lifetime | 50,000 Burner Startup Cycles or Approximately 10 Years |
| Standards | EN 1854, EN 60730-2-6 |
Note: Pressure ranges and switching differentials vary depending on the model. Refer to the Type Summary before ordering.
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Product Specifications
Siemens Compact Pressure Switches QPLx5 Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Siemens |
| Series | QPLx5.xxxB |
| Product Type | Compact Pressure Switch |
| Connection Models | QPL15 (O-ring) / QPL25 (1/4-inch thread) |
| Application | Gas and Air Pressure Monitoring |
| Monitoring Type | Minimum and Maximum Pressure |
| Maximum Operating Pressure | 72 kPa |
| Adjustable Pressure Range | 0.1–50 kPa, depending on model |
| Switching Voltage | AC Max. 250 V / DC 24–48 V |
| Maximum AC Switching Current | 6 A (cos φ = 1) / 2 A (cos φ = 0.6) |
| Maximum DC Switching Current | 1 A |
| Minimum Switching Current | 20 mA |
| Switching Pressure Deviation | ±15% of setpoint |
| Reset Function | Automatic Reset |
| Protection Rating | IP54 |
| Safety Class | Class II |
| Operating Temperature | -15 to +60 °C |
| Storage Temperature | -20 to +80 °C |
| Relative Humidity | Below 95% RH |
| Mounting Position | Horizontal or Vertical (Not Suspended) |
| Housing Material | Plastic Housing with Die-cast Aluminum Base |
| Designed Lifetime | 50,000 Burner Startup Cycles or Approximately 10 Years |
| Standards | EN 1854, EN 60730-2-6 |
Note: Pressure ranges and switching differentials vary depending on the model. Refer to the Type Summary before ordering.
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