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Festo
538321
Proximity sensor SIEF-M30NB-NS-S-L
This Festo round inductive industrial component, part number 538321, conforms to EN 60947-5-2 with a rated operating distance of 20 mm, an assured operating distance of 16.2 mm, and uniform reduction factors of 1.0 across aluminum, stainless steel St 18/8, copper, brass, and steel St 37. Operating within a 10 V to 30 V DC voltage range, it features an NPN N.O. switching output, a maximum switching frequency of 1500 Hz, pulsed short-circuit protection, and a temperature range of -30 °C to 85 °C. The unit carries RCM compliance, c UL us listing, CE, and UKCA markings. Submit the exact part number, quantity, and application requirements for a formal 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
- 538321
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 538321.
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
- Measuring principle
- Inductive
- Rated operating distance
- 20 mm
- Assured operating distance
- 16.2 mm
- Reduction factors
- Aluminum = 1.0 | Stainless steel St 18/8 = 1.0 | Copper = 1.0 | Brass = 1.0 | Steel St 37 = 1.0
- Ambient temperature
- -30 °C...85 °C
- Repetition accuracy
- 0.4 mm
- Switching output
- NPN
- Switching element function
- N.O. contact
- Hysteresis
- 0.6 mm...3 mm
- Max. switching frequency DC
- 1500 Hz
- Max. output current
- 200 mA
- Voltage drop
- 1.8 V
- Short-circuit protection
- Pulsed
- DC operating voltage range
- 10 V...30 V
- Residual ripple
- 10%
- Idle current
- 15 mA
- Reverse polarity protection
- for all electrical connections
- Electrical connection
- 3-pin | Fixcon | M12x1 | Plug
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 538321. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.