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Festo
174550
Proximity sensor SIES-Q8B-NO-K-L
This Festo industrial component, part number 174550, conforms to EN 60947-5-2 and features an NPN switching output with a normally closed (NC) contact function. Operating on a DC voltage range of 10 V to 30 V, it provides a rated operating distance of 1.5 mm, an assured operating distance of 1.2 mm, and a maximum switching frequency of 3500 Hz. The unit includes pulsed short-circuit protection, a maximum output current of 200 mA, and operates within an ambient temperature range of -25 °C to 70 °C while maintaining RoHS compliance and CE, UKCA, RCM, and c UL us-Listed certifications. Submit the exact part number, quantity, and application requirements to receive a formal quotation.
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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
- 174550
- Data verification
- Manufacturer evidence reviewed
For a faster response, include quantity, condition, and delivery destination.
Exact part-number verificationTechnical properties are matched to 174550.
Worldwide sourcingSupport for planned and urgent industrial requirements.
Manufacturer documentationA document is added when the reviewed source provides one.
Verified configuration
Technical Specifications
- 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)
- Note on materials
- RoHS compliant
- Rated operating distance
- 1.5 mm
- Assured operating distance
- 1.2 mm
- Reduction factors
- Aluminum = 0.45 | Stainless steel St 18/8 = 0.8 | Copper = 0.4 | Brass = 0.55 | Steel St 37 = 1.0
- Ambient temperature
- -25 °C...70 °C
- Repetition accuracy
- 0.07 mm
- Switching output
- NPN
- Switching element function
- NC contact
- Max. switching frequency
- 3500 Hz
- Max. switching frequency DC
- 1500 Hz
- Max. output current
- 200 mA
- Voltage drop
- 2 V
- Short-circuit protection
- Pulsed
- DC operating voltage range
- 10 V...30 V
- Residual ripple
- 10%
- Idle current
- 10 mA
- Reverse polarity protection
- for all electrical connections
- Electrical connection 1, connection type
- Cable
- Electrical connection 1, connection technology
- Open end
- Electrical connection 1, number of pins/wires
- 3
- Cable length
- 2.5 m
- Material of cable sheath
- TPE-U(PUR)
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 174550. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.