General Description:
The SIEMENS QPD15.003 pressure switch is designed for accurate monitoring of low gas pressures. It is commonly used in combustion systems to signal and control low-pressure conditions for safety purposes.
Technical Specifications:
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Adjustable Pressure Range: 0.4 – 3 mbar
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Max Operating Pressure: 50 mbar
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Electrical Connection: 250 V AC, 50/60 Hz, 6 A (resistive load)
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Contact Type: SPDT (Single-pole double-throw)
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Protection Class: IP54
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Operating Temperature: -15 °C ... +80 °C
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Connection: Ø6 mm hose fitting
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Hysteresis: Approx. 0.2 – 0.5 mbar
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Mounting: Preferably vertical
Applications:
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Low pressure gas systems
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Burner and boiler safety
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Safety circuits
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Low pressure warning systems
Advantages:
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Precise low-pressure adjustment
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Reliable switch mechanism
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Compact design, easy installation
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Conforms to industrial safety norms