CC1N7221en
27.10.2005
Building Technologies
HVAC Products
7
221
QPLx2…
QPLx5… / QPHx5…
Pressure Switches
QPL…
QPH…
The pressure switches are used for monitoring gas or air pressures.
When the pressure falls below or exceeds the adj usted switching point, the re-
spective electrical circuit will be opened or changes over.
The QPL... / QPH… and this Data Sheet are intended for use by OEMs which inte-
grate the pressure switches in their products.
Use
•
For the supervision of air or gas pressures in gas trains of gas-fired equipment (gas
burners)
•
The QPL... / QPH… are available as pressure switches for minimum or maximum
pressure
•
Suited for pressure ranges up to 500 mbar
•
Suited for gases of gas families 1, 2 and 3 and other neutral gaseous media
