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PRODUCT DESCRIPTION
QBM81-10 differential pressure switch for air and nonaggressive gases
Siemens QBM81-10 is a differential pressure switch for air and nonaggressive gases in the Siemens Building Technologies family. It is identified for compatible Siemens Building Technologies installations and should be selected by its complete order number and documented interface.
Its technical characteristics include adjustable pressure range: 100 to 1000 Pa (1 to 10 mbar; 0.4 to 4 inH2O); permitted media: Air and non-corrosive gases; switching contact: Single-pole changeover, multilayer contact; and minimum contact load: 24 V AC/DC, 0.01 A. These values define the electrical and functional profile used for engineering review.
Its technical characteristics include adjustable pressure range: 100 to 1000 Pa (1 to 10 mbar; 0.4 to 4 inH2O); permitted media: Air and non-corrosive gases; switching contact: Single-pole changeover, multilayer contact; and minimum contact load: 24 V AC/DC, 0.01 A. These values define the electrical and functional profile used for engineering review.
BEFORE YOU BUY
Confirm the complete differential pressure switch for air and nonaggressive gases
ACTUAL APPLICATIONS
Application context for QBM81-10
QBM81-10 supports use across the three industry fields below. Its documented role is differential pressure switch for air and nonaggressive gases; the complete order code and installed configuration determine the applicable engineering arrangement.
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01 · WATER & WASTEWATER
Water Supply and Wastewater Industries
Municipal water and wastewater sitesIndustrial water utility sites -
02 · OIL & GAS
Oil, Gas and Petrochemical Industries
Upstream and downstream energy sitesPipeline, terminal and storage sites -
03 · SEMICONDUCTOR
Semiconductor and Electronics Industries
Semiconductor fabrication sitesElectronics manufacturing facilities
Technical specifications for QBM81-10
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Product ModelQBM81-10
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Product ParametersDifferential pressure switch for air and nonaggressive gases
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In stock1 unit
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ManufacturerSiemens
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Adjustable pressure range100 to 1000 Pa (1 to 10 mbar; 0.4 to 4 inH2O)
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Permitted mediaAir and non-corrosive gases
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Switching contactSingle-pole changeover, multilayer contact
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Minimum contact load24 V AC/DC, 0.01 A
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Maximum resistive contact load250 V AC, 5 A
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Maximum inductive contact load3 A; cos phi above 0.6
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Service lifeMore than 1,000,000 switching cycles
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Maximum unilateral overload7500 Pa
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Housing protectionIP54 according to EN 60529
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Protection classClass III according to EN 60730-1
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Electrical connection3 screw terminals
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Cable entryPG11 cable gland
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Pressure connectionsMale, 6.2 mm diameter
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Mounting orientationAny; vertical orientation recommended
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Operating temperature-30 to +85 degrees C
View all additional
Alternative Names
QBM81-10
Siemens Building Technologies differential pressure switch for air and nonaggressive gases
Building Technologies 100 to 1000 Pa (1 to 10 mbar; 0.4 to 4 inH2O) adjustable pressure range
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM INTEGRATION
Integrate QBM81-10 differential pressure switch for air and nonaggressive gases
QBM81-10 belongs to the Siemens Building Technologies family and provides the documented role of differential pressure switch for air and nonaggressive gases. Review the exact order number before assigning it to the installed architecture.
Match adjustable pressure range (100 to 1000 Pa (1 to 10 mbar; 0.4 to 4 inH2O)) and permitted media (Air and non-corrosive gases) with the host configuration. Confirm terminal allocation and supply conditions from the applicable document.
Integrate the unit under controlled conditions and validate switching contact (Single-pole changeover, multilayer contact). Record diagnostics and every affected signal path after commissioning.
Features:
- Confirm adjustable pressure range: 100 to 1000 Pa (1 to 10 mbar; 0.4 to 4 inH2O)
- Confirm permitted media: Air and non-corrosive gases
- Confirm switching contact: Single-pole changeover, multilayer contact
The QBM81-10 differential pressure switch for air and nonaggressive gases requires appropriate configuration before system integration and commissioning.
INTERCHANGEABILITY
Verify QBM81-10 differential pressure switch for air and nonaggressive gases
Identify the removed unit as QBM81-10 and record its adjustable pressure range before disconnection. Preserve wiring, terminal and configuration records.
Compare the replacement unit's permitted media (Air and non-corrosive gases) and switching contact (Single-pole changeover, multilayer contact) with the installed requirement. Inspect connectors and housing condition.
After installation, verify minimum contact load (24 V AC/DC, 0.01 A) and complete functional checks for every affected channel or interface before return to service.
Features:
- Verify minimum contact load: 24 V AC/DC, 0.01 A
- Verify maximum resistive contact load: 250 V AC, 5 A
- Verify maximum inductive contact load: 3 A; cos phi above 0.6
The QBM81-10 differential pressure switch for air and nonaggressive gases requires replacement verification against the complete installed configuration and current manufacturer documentation.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: The linked files are Amikong-hosted reference documents. Match their product identity and scope to the supplied assembly, and consult the applicable manufacturer instructions before use. Accessories and additional documents are included only when expressly listed in the quotation.
Features:
- Verify document identity before procurement or installation
- Match the complete order to the manufacturer document scope
- Accessories are supplied only when listed in the quotation
Documentation for the QBM81-10 differential pressure switch for air and nonaggressive gases must be checked for document applicability before installation or commissioning.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size10.80 x 7.30 x 6.30cm
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Shipping weight0.18 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8538909100
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OriginGermany
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Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about QBM81-10
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases distributor quotation verify the adjustable pressure range for QBM81-10?
Use the exact QBM81-10 identity and confirm adjustable pressure range as 100 to 1000 Pa (1 to 10 mbar; 0.4 to 4 inH2O); compare the installed label and applicable documentation before supply or service. -
How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases incoming inspection verify the permitted media for QBM81-10?
Use the exact QBM81-10 identity and confirm permitted media as Air and non-corrosive gases; compare the installed label and applicable documentation before supply or service. -
How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases engineering review verify the switching contact for QBM81-10?
Use the exact QBM81-10 identity and confirm switching contact as Single-pole changeover, multilayer contact; compare the installed label and applicable documentation before supply or service. -
How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases maintenance survey verify the minimum contact load for QBM81-10?
Use the exact QBM81-10 identity and confirm minimum contact load as 24 V AC/DC, 0.01 A; compare the installed label and applicable documentation before supply or service. -
How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases spares register verify the maximum resistive contact load for QBM81-10?
Use the exact QBM81-10 identity and confirm maximum resistive contact load as 250 V AC, 5 A; compare the installed label and applicable documentation before supply or service. -
How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases installation plan verify the maximum inductive contact load for QBM81-10?
Use the exact QBM81-10 identity and confirm maximum inductive contact load as 3 A; cos phi above 0.6; compare the installed label and applicable documentation before supply or service. -
How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases commissioning check verify the service life for QBM81-10?
Use the exact QBM81-10 identity and confirm service life as More than 1,000,000 switching cycles; compare the installed label and applicable documentation before supply or service. -
How should a Siemens Building Technologies differential pressure switch for air and nonaggressive gases MRO request verify the maximum unilateral overload for QBM81-10?
Use the exact QBM81-10 identity and confirm maximum unilateral overload as 7500 Pa; compare the installed label and applicable documentation before supply or service.
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