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ROHS Siemens Building Automation Differential Pressure Switch QBM81-5

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ROHS Siemens Building Automation Differential Pressure Switch QBM81-5

ROHS Siemens Building Automation Differential Pressure Switch QBM81-5
Country/Region china
City & Province shenzhen
Categories Pressure Switches
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Product Details

Siemens Differential Pressure Switch QBM81-5

 

  • For ventilation and air conditioning plants
  • To monitor air filters, air flow, fan belts
  • To monitor pressure in clean rooms, kitchens etc.
  • Easy to mount
  • >1 mio switching cycles
  • Highly precise setting
  • Long-term stability

 

Mechanical design

 

The differential pressure switch QBM81-... consists of:

  • Housing and cover
  • Diaphragm
  • 1 sheet-steel mounting bracket

 

Accessory duct probe connection kit (FK-PZ3):

  • 2 duct adaptors
  • 4 fixing screws
  • 2 m tubing, 5/8 mm dia.

 

Type summary

 

TypePressure range
QBM81-30,2…3 mbar20…300 Pa0.08…1.2 inH2O
QBM81-50,5…5 mbar50...500 Pa0.2…2 inH2O
QBM81-101…10 mbar100…1000 Pa0.4…4 inH2O
QBM81-205…20 mbar500…2000 Pa2…8 inH2O
QBM81-5010…50 mbar1000…5000 Pa4…20 inH2O

 

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