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Products/Festo/538521
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Festo

538521

Flow sensor SFE3-F050-L-WQ6-2PB-K1

The Festo 538521 industrial component is designed for flow measurement ranging from 0.5 to 5 l/min utilizing compressed air in accordance with ISO8573-1:2010 [1:4:2] or nitrogen as the operating medium. It operates within a working pressure of -0.7 to 7 bar and a temperature range of 0 to 50 °C for both the medium and ambient environment, featuring dual PNP switch outputs, a 1-5 V analog output, and an electrical cable connection powered by 12 to 24 V DC. This unit provides an accuracy of 5 %FS and a switching point reproducibility of 1 % FS, bearing C-Tick authorization and CE conformity according to the EU-EMV guideline with a materials note indicating the presence of PWIS substances. Submit the exact part number, quantity, and application requirements to receive a formal quotation.

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Manufacturer
Festo
Part number
538521
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 538521.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Authorization
C-Tick
CE symbol (see declaration of conformity)
according to EU-EMV guideline
Materials note
Contains PWIS substances
Flow measurement range initial value
0.5 l/min
Flow measurement range final value
5 l/min
Working pressure
-0.7 ... 7 bar
Operating medium
Compressed air in accordance with ISO8573-1:2010 [1:4:2] | Nitrogen
Medium temperature
0 ... 50 °C
Ambient temperature
0 ... 50 °C
Accuracy, FS
5 %FS
Switch output
2xPNP
Switching function
Window comparator | Threshold value comparator
Switching element function
Normally closed contact | Normally open contact
Switching point reproducibility, FS
1 %
Switch-on time
50 ms
Analog output
1 - 5 V
Load resistance
> 50 kOhm
Indicating range
0.5 ... 5 l/min
Operating voltage range DC
12 ... 24 V
Electrical connection
Cable
Cable length
1 m
Materials information, cable sheaths
PVC
Mounting type
with through hole
Assembly position
Vertical | Horizontal
Pneumatic connection
QS-6
Product weight
70 g
Materials information, housing
PA
Type of display
31-place alphanumeric
Protection class
IP40
Corrosion resistance classification CRC
2 - Moderate corrosion stress

Engineering context

Identification and RFQ Guidance

Confirm the exact configuration

Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

What to include in your RFQ

Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.

Technical verification

Our sourcing response is prepared against Festo 538521. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.