178291

Name: Festo 178291 Proximity sensor SIES-Q5B-PS-K-L
Brand: Festo

Proximity sensor SIES-Q5B-PS-K-L

The Festo 178291 is an industrial component featuring a 0.8 mm rated operating distance, an assured operating distance of 0.64 mm, and a PNP switching output with a N.O. contact element function. This unit operates on a DC voltage range of 10 V to 30 V, supports a maximum switching frequency of 3000 Hz, and provides pulsed short-circuit protection alongside reverse polarity protection for all electrical connections. It conforms to EN 60947-5-2, carries RCM compliance and c UL us-Listed (OL) certifications, and complies with EU and UK regulations for EMC and RoHS. Submit the exact part number, quantity, and application requirements for a quote.

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Manufacturer: Festo
Part number: 178291
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Technical Specifications

Conforms to standard: EN 60947-5-2
Certication: 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)
Rated operating distance: 0.8 mm
Assured operating distance: 0.64 mm
Reduction factors: Aluminum = 0.4 | Stainless steel St 18/8 = 0.7 | Copper = 0.3 | Brass = 0.4 | Steel St 37 = 1.0
Ambient temperature: -25 °C...70 °C
Repetition accuracy: 0.04 mm
Switching output: PNP
Switching element function: N.O. contact
Max. switching frequency: 3000 Hz
Max. switching frequency DC: 3000 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)
Size: 5x5x25 mm

Engineering context

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Our sourcing response is prepared against Festo 178291. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.