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Siemens Pressure switch QPL15.050B

SKU QPL15.050B Brand Siemens

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Key specifications

Body material	industrial heat-resistant plastic
Media compatibility	air, flue and non-aggressive gases
Application	ventilation, boilers, burners, hvac systems
Operating principle	differential / overpressure control
Mounting feature	wall-mounted / built-in
Intended systems	Siemens automation systems

all specifications (6) ↓

59.90 EUR

54.45EUR

in stock · 2

incl. 21% VAT · 45.00 EUR excl. VAT · shipping calculated at checkout

Worldwide shipping from stock
Original manufacturer part
Dispatch within 24 h for stocked items

Description

The Siemens QPL15.050B pressure switch monitors air, flue gas, and non-aggressive gas pressure in ventilation, boiler, burner, and HVAC systems. It uses differential and overpressure control, and is intended for integration with Siemens automation systems. The housing is made of industrial heat-resistant plastic, and the unit can be wall-mounted or built-in.

Further details

Function	monitoring air and non-aggressive gas pressure
Pressure type	overpressure, vacuum, and differential pressure of air

Choosing and fitting

Parts of this type are selected by the medium, switching range and differential, connection thread or hose spigot size, contact rating, and applicable approval class. During installation, ensure the impulse tube is clean and unobstructed, the diaphragm is undamaged, and the setpoint is correctly adjusted for the specific burner.

Signs of failure

When such a pressure switch fails, the burner control may not advance through its ignition sequence or will shut down, leading to lockouts often mistaken for ignition faults. Typical causes are a torn diaphragm, a blocked impulse line, or a drifted setpoint; inspect these before replacing ignition components.

All specifications

Body material	industrial heat-resistant plastic
Media compatibility	air, flue and non-aggressive gases
Application	ventilation, boilers, burners, hvac systems
Operating principle	differential / overpressure control
Mounting feature	wall-mounted / built-in
Intended systems	Siemens automation systems

Part numbers

SKU	QPL15.050B
Additional article	884.214.050