178294

Proximity Sensor, 1.5 mm, 8 x 8 x 40 mm, PNP, 10 VDC to 30 VDC, SIES Series

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: FESTO
Product type: Inductive Proximity Sensors
SVHC: No SVHC (25-Jun-2020)
Product Range: SIES Series

Delivery and price
Units per pack	1
Price	71.71 €
Current stock	10+
Lead time	30 days

Datasheet

## **Proximity sensor SIES-Q8B-PS-K-L** 

Part number: 178294 

> General operating condition ~~—~~ 

## **Data sheet** 

|**Feature**<br>~~Se~~|**Value**|
|---|---|
|Conforms to standard<br>~~Se~~|EN 60947-5-2|
|Symbol<br>~~Se~~<br>~~a~~|00991702<br>~~a~~|
|Certification|RCM compliance mark<br>c UL us - Listed (OL)|
|CE marking (see declaration of conformity)|As per EU EMC directive<br>As per EU RoHS directive|
|UKCA marking (see declaration of conformity)<br>~~a~~|according to UK RoHS regulations (UK-R)<br>~~a~~|
|Note on materials<br>~~a~~|RoHS compliant<br>~~a~~|
|Rated operating distance<br>~~a~~|1.5 mm<br>~~a~~|
|Assured operating distance<br>~~a~~|1.2 mm<br>~~a~~|
|Reduction factors|Aluminum = 0.45<br>Stainless steel St 18/8 = 0.8<br>Copper = 0.4<br>Brass = 0.55<br>Steel St 37 = 1.0|
|Ambient temperature<br>~~a~~|-25 °C ... 70 °C<br>~~a~~|
|Repetition accuracy<br>~~a~~|0.07 mm<br>~~a~~|
|Switching output<br>~~a~~|PNP<br>~~a~~|
|Switching element function<br>~~a~~|N.O. contact<br>~~a~~|
|Max. switching frequency<br>~~a~~|3500 Hz<br>~~a~~|
|Max. switching frequency DC<br>~~a~~|1500 Hz<br>~~a~~|
|Max. output current<br>~~a~~|200 mA<br>~~a~~|
|Voltage drop<br>~~a~~|2 V<br>~~a~~|
|Short-circuit protection<br>~~a~~|Pulsed<br>~~a~~|
|DC operating voltage range<br>~~a~~|10 V ... 30 V<br>~~a~~|
|Residual ripple<br>~~a~~|10%<br>~~a~~|
|Idle current<br>~~a~~|≤10 mA<br>~~a~~|
|Reverse polarity protection<br>~~a~~|for all electrical connections<br>~~a~~|
|Electrical connection 1, connection type<br>~~a~~|Cable<br>~~a~~|
|Electrical connection 1, connection technology<br>~~a~~|Open end<br>~~a~~|
|Electrical connection 1, number of pins/wires<br>~~a~~|3<br>~~a~~|
|Cable length|2.5 m|
|Material of cable sheath<br>~~a~~|TPE-U(PUR)<br>~~a~~|
|Size<br>~~a~~|8x8x40 mm<br>~~a~~|
|Type of mounting<br>~~a~~|With internal thread<br>~~a~~|
|Mounting type<br>~~a~~|Flush<br>~~a~~|
|Product weight<br>~~a~~|39 g<br>~~a~~|



6/3/26 - Subject to change - Festo SE & Co. KG 

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|**Feature**|**Value**|
|---|---|
|Housing material|Die-cast zinc<br>Chrome-plated<br>Nickel-plated|
|Switching status indication|Yellow LED|
|Degree of protection|IP67|
|LABS (PWIS) conformity|VDMA24364-B2-L|
|Selection of additional sensor information|Special design|
|Electrical output|PNP|
|Selection of sensor version|Standard|



6/3/26 - Subject to change - Festo SE & Co. KG 

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Updated at April 21, 2026

Festo is a globally recognized leader in industrial automation, renowned for its innovative pneumatic and electrical control and drive technologies. As an engineering-driven company, Festo provides robust, high-quality components designed to optimize both factory and process automation systems across a wide range of demanding industries. A cornerstone of their automation expertise is a comprehensive portfolio of precision sensory technology. The core of this offering is focused on advanced pressure sensors and transducers. These vital components are engineered to deliver highly accurate fluid and gas measurements, ensuring reliable monitoring, system safety, and optimal efficiency in complex industrial environments. Complementing their fluid control solutions, Festo also manufactures a dependable selection of proximity sensors and proximity switches. Built for durability and precise object detection, these sensors provide the essential positional feedback required to maintain seamless and automated operational workflows.

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