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
Reference imageConfirm configuration by manufacturer part number.
Festo
553540
Proximity sensor SIEF-M8B-NS-K-L
The Festo 553540 is an M8 round industrial component featuring a 1.5 mm rated operating distance and an NPN switching output with an N.O. contact function. This 3-wire unit operates on a 10 V to 30 V DC voltage range, delivers a max switching frequency of 2000 Hz, and includes pulsed short-circuit protection alongside reverse polarity protection for all electrical connections. Certified with the RCM compliance mark and c UL us - Listed (OL) status, it conforms to EN 60947-5-2 while carrying CE and UKCA markings per relevant EMC, low voltage, and RoHS directives. The assembly includes a 2.5 m TPE-U(PU) cable sheath and functions within an ambient temperature range of -30 °C to 70 °C with a repetition accuracy of 0.08 mm. Submit the exact part number, quantity, and application requirements to request a formal quote.
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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
- 553540
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 553540.
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...70 °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-wire | Cable
- Cable length
- 2.5 m
- Material of cable sheath
- TPE-U(PU)
- Size
- M8
- Mounting type
- Flush
- Product weight
- 61.4 g
- Housing material
- PA | PP | high-alloy stainless steel
- Switching status indication
- Yellow LED
- Ambient temperature with exible cable installation
- -5 °C...70 °C
- Degree of protection
- IP68
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 553540. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.