Siemens
Siemens Differential Pressure Monitor QBM81-5
Siemens QBM81-5 differential pressure monitor with a 50 to 500 Pa switching range for air pressure monitoring.
At a glance
- Also known as 7550226
£76.70
£63.92 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Siemens QBM81-5 is a differential pressure monitor with a switching range of 50 to 500 Pa. It is an air pressure switch intended for monitoring pressure differentials in gas boiler applications. The device switches in response to changes in the sensed pressure differential across its range.
Before you order
- Check the existing device is marked QBM81-5 or QBM 81-5 before ordering.
- Confirm the pressure differential of the application falls within the 50 to 500 Pa switching range.
- Verify the mounting and pressure connections suit the installation.
- Check the appliance documentation for the required pressure switch specification.
Compliance
| Alternative numbers | 7550226 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| SIEMENS SENSORS | — | — | — |
Documents & drawings
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