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Products/Festo/553543
Festo 553543 Proximity sensor SIEF-M12B-NS-S-L
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Festo

553543

Proximity sensor SIEF-M12B-NS-S-L

The Festo 553543 is a round industrial component featuring an M12 size, flush mounting type, and a 3 mm rated operating distance conforming to EN 60947-5-2. It operates on a 10 V to 30 V DC voltage range with an NPN switching output, N.O. contact switching element function, 3000 Hz max. DC switching frequency, and 200 mA max. output current. Built with a chrome-plated brass plug housing and a 3-pin M12x1 plug electrical connection, the unit includes pulsed short-circuit protection and reverse polarity protection for all electrical connections across an ambient temperature range of -30 °C to 85 °C with a 0.16 mm repetition accuracy. This RoHS compliant component carries RCM compliance, c UL us - Listed (OL), CE, and UKCA markings. Request a quote by submitting the exact part number, quantity, and application requirements.

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Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.

Manufacturer
Festo
Part number
553543
Data verification
Manufacturer evidence reviewed

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Exact part-number verificationTechnical properties are matched to 553543.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.

Verified configuration

Technical Specifications

Design
Round
Conforms to standard
EN 60947-5-2
Certication
RCM compliance mark | c UL us - Listed (OL)
CE marking (see declaration of conformity)
As per EU EMC directive | As per EU low voltage directive | As per EU RoHS directive
UKCA marking (see declaration of conformity)
To UK instructions for EMC | To UK RoHS instructions | To UK instructions for electrical equipment
Note on materials
RoHS compliant
Rated operating distance
3 mm
Ambient temperature
-30 °C...85 °C
Repetition accuracy
0.16 mm
Switching output
NPN
Switching element function
N.O. contact
Max. switching frequency DC
3000 Hz
Max. output current
200 mA
Short-circuit protection
Pulsed
DC operating voltage range
10 V...30 V
Reverse polarity protection
for all electrical connections
Electrical connection
3-pin | M12x1 | Plug
Material of plug housing
Brass | Chrome-plated
Size
M12
Mounting type
Flush
Product weight
24 g
Housing material
Brass | Chrome-plated
Switching status indication
Yellow LED
Degree of protection
IP68
Resistance to interference from magnetic elds
Magnetic direct and alternating elds

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 553543. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.