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Festo
538265
Proximity sensor SIEH-3B-NS-S-L
The Festo part number 538265 is a round inductive industrial component featuring a rated operating distance of 1 mm, an assured operating distance of 0.81 mm, and a repetition accuracy of 0.02 mm conforming to EN 60947-5-2 standards. This NPN switching output device provides an N.O. contact function, a max switching frequency DC of 3000 Hz, a max output current of 100 mA, and operates within an ambient temperature range of -25 °C to 70 °C with RCM and c UL us - Listed certifications. It includes an installed inductive protective circuit for output currents under 100 mA and switching frequencies under 10 Hz, alongside CE and UKCA markings per EMC and RoHS directives. Submit the exact part number, quantity, and application requirements to receive a quote.
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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
- 538265
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 538265.
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 RoHS directive
- UKCA marking (see declaration of conformity)
- according to UK regulations for EMC (UK-E) | according to UK RoHS regulations (UK-R)
- Measuring principle
- Inductive
- Rated operating distance
- 1 mm
- Assured operating distance
- 0.81 mm
- Reduction factors
- Aluminum = 0.5 | Stainless steel St 18/8 = 0.8 | Copper = 0.45 | Brass = 0.6 | Steel St 37 = 1.0
- Ambient temperature
- -25 °C...70 °C
- Repetition accuracy
- 0.02 mm
- Switching output
- NPN
- Switching element function
- N.O. contact
- Hysteresis
- 0.12 mm
- On time
- 0.02 ms
- Max. switching frequency DC
- 3000 Hz
- Max. output current
- 100 mA
- Voltage drop
- 2 V
- Inductive protective circuit
- Installed | Output current <100 mA | and switching frequency < 10 Hz
- Residual current
- 0.1 mA
- Short-circuit protection
- Pulsed
- DC operating voltage range
- 10 V...30 V
- Residual ripple
- 20%
- Idle current
- 10 mA
- Reverse polarity protection
- for all electrical connections
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 538265. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.