Siemens QBM81 Series Differential Pressure Switch

Product Id : 2601


Siemens QBM81 Series Differential Pressure Switch specifically designed for monitoring under an overpressure in ventilation.

Application: In ventilation and air conditioning plants to Monitor differential pressure, under pressure and overpressure, Monitor air filters and airflows, Recognize torn fan belts and Differential pressure switches can be used in cleanrooms, kitchens,, etc.

  Usually ships in 2 - 4 weeksUsually ships in 2 - 4 weeks, However please contact store for precise delivery schedule. Backorder also allowed

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Country : United States

Product Description

Siemens QBM81 Series Differential Pressure Switch measures air and non-aggressive gases which are easy to mount also feature switching cycles, highly precise setting, and long-term stability. For ventilation and air conditioning plants. This siemens pressure switch with single pole change over output has a pressure range of 20 to 5000 Pa. Siemens Pressure Switch has an IP54 protection class and a temperature range of 0 to 70 °C.

  • To monitor air filters, airflow, fan belts
  • To monitor the pressure in clean rooms, kitchens, etc.
  • Siemens Pressure Switch is easy to mount
  • >1 Mio switching cycles
  • Highly precise setting
  • Siemens Pressure Switch has Long-term stability.

Additional Information

Weight 1 kg
Manufacturer Siemens
Select Model and Range QBM81-10 : 1 to 10 mbar, QBM81-10 : 100 to 1000 Pa, QBM81-20 : 5 to 20 mbar, QBM81-20 : 500 to 2000 Pa, QBM81-3 : 0, 2 to 3 mbar, QBM81-3 : 20 to 300 Pa, QBM81-5 : 0, 5 to 5 mbar, QBM81-5 : 50 to 500 Pa, QBM81-50 : 10 to 50 mbar, QBM81-50 : 1000 to 5000 Pa
Type of switch Single-pole change-over, multi-layer contact
Electrical Connection 3 screw terminals
Mounting Sheet-steel (galvanized)
Operating Temperature –30 °C to 85 °C
Operating Humidity Less than 90 % RH (non-condensing)
Storage Temperature –40 °C to 85 °C
Standards EN 61326-x Electrical equipment involved in measurement, control,and laboratory use; EMV requirements; general requirements
Cable Entry PG11 cable gland
Housing Fiber-glass reinforced polycarbonate
Protection class III according to EN 60730-1
Calibration Provided alongwith and valid for 1 year, traceable to National Standards.
Weight 250 Grams

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