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ROHS Siemens Building Automation Differential Pressure Switch QBM81-5
Product Details:
| Place of Origin: | China |
| Brand Name: | SIEMENS |
| Certification: | ROHS |
| Model Number: | QBM81-5 |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1pc |
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| Price: | negotiable |
| Packaging Details: | standard carton packing |
| Delivery Time: | on request |
| Payment Terms: | T/T |
| Supply Ability: | 100pcs per month |
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Detail Information |
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| Digital Outputs: | CO: 1; Potential-free | Permissible Operating Pressure: | 7.5 KPa |
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| Ambient Temperature, Operation: | -20…85 °C | Mounting Position: | Diaphragm Vertical, Pressure Connection Pointing Downward |
| Digital Output, Switching Voltage: | AC 24…250 V; 24 V | Digital Output, Switching Current: | 0.01…5 (3)A |
| Measuring Range, Pressure: | 50…500 Pa | Dimensions (ø X L): | 81 X 90 Mm |
| Highlight: | 500Pa Siemens Building Automation,ROHS Siemens Building Automation,QBM81-5 |
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Product Description
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
| Type | Pressure range | ||
| QBM81-3 | 0,2…3 mbar | 20…300 Pa | 0.08…1.2 inH2O |
| QBM81-5 | 0,5…5 mbar | 50...500 Pa | 0.2…2 inH2O |
| QBM81-10 | 1…10 mbar | 100…1000 Pa | 0.4…4 inH2O |
| QBM81-20 | 5…20 mbar | 500…2000 Pa | 2…8 inH2O |
| QBM81-50 | 10…50 mbar | 1000…5000 Pa | 4…20 inH2O |
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