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.
Global industrial sourcing · Houston, Texas info@mropartsrfq.com
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Festo
553539
Proximity sensor SIEF-M8B-NS-S-L
The Festo part number 553539 is a round M8 industrial component featuring a flush mounting type, an EN 60947-5-2 conformity design, and a rated operating distance of 1.5 mm. It operates on a 10 V to 30 V DC range with an NPN switching output, N.O. contact, 2000 Hz max DC switching frequency, and 150 mA max output current, utilizing pulsed short-circuit protection and reverse polarity protection for all electrical connections via a 3-pin M8x1 chrome-plated brass plug housing. Certified with the RCM compliance mark and c UL us - Listed (OL), this RoHS-compliant unit functions within an ambient temperature range of -30 °C to 85 °C, maintains a repetition accuracy of 0.08 mm, and carries CE and UKCA markings per applicable EMC, low voltage, and RoHS directives. Submit the exact part number, quantity, and application requirements for a quote.
Request pricing and availabilityCommercial response within one business day for your destination and required quantity.
Request a QuoteWhy no listed price?
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
- 553539
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 553539.
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
- Certication
- 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
- 1.5 mm
- Ambient temperature
- -30 °C...85 °C
- Repetition accuracy
- 0.08 mm
- Switching output
- NPN
- Switching element function
- N.O. contact
- Max. switching frequency DC
- 2000 Hz
- Max. output current
- 150 mA
- Short-circuit protection
- Pulsed
- DC operating voltage range
- 10 V...30 V
- Reverse polarity protection
- for all electrical connections
- Electrical connection
- 3-pin | M8x1 | Plug
- Material of plug housing
- Brass | Chrome-plated
- Size
- M8
- Mounting type
- Flush
- Product weight
- 12 g
- Housing material
- PA | high-alloy stainless steel
- 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
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 553539. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.