# Proximity Sensor, 12 mm, M18, NPN, 10 VDC to 30 VDC, SIEF Series

![Product image](https://novapart.co/image/farnell:3906417/)

**URL**: https://novapart.co/products/538317/proximity-sensor-12-mm-m18-npn-10-vdc-to-30-sief
**SKU**: 538317
**Manufacturer**: FESTO
**Category**: Sensors & Transducers || Sensors || Proximity Sensors / Proximity Switches || Inductive Proximity Sensors
**Price**: €76.6200
**Stock**: 10+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (25-Jun-2020) |
| Product Range | SIEF Series |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3906417/)

## **Proximity sensor SIEF-M18NB-NS-S-L** 

Part number: 538317 

> General operating condition ~~—~~ 

## **Data sheet** 

|**Feature**|**Value**|
|---|---|
|Design|Round|
|Conforms to standard|EN 60947-5-2|
|Symbol|00991703|
|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 low voltage directive<br>As per EU RoHS directive|
|UKCA marking (see declaration of conformity)|To UK RoHS instructions<br>To UK instructions for electrical equipment|
|Measuring principle|Inductive|
|Rated operating distance|12 mm|
|Assured operating distance|9.72 mm|
|Reduction factors|Aluminum = 1.0<br>Stainless steel St 18/8 = 1.0<br>Copper = 1.0<br>Brass = 1.0<br>Steel St 37 = 1.0|
|Ambient temperature|-30 °C ... 85 °C|
|Repetition accuracy|0.24 mm|
|Switching output|NPN|
|Switching element function|N.O. contact|
|Hysteresis|0.36 mm ... 1.8 mm|
|Max. switching frequency DC|2000 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|M12x1<br>Plug|
|Electrical connection 1, connection type|Plug|
|Electrical connection 1, connection technology|M12x1 A-coded as per EN 61076-2-101|
|Electrical connection 1, number of pins/wires|3|
|Electrical connection 1, type of mounting|not rotatable|
|Electrical connection 1, type of mounting|Compatible with rotatable screw-type lock|



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

1/2 

|**Feature**|**Value**|
|---|---|
|Size|M18|
|Type of mounting|With locknut|
|Tightening torque|25 Nm|
|Mounting type|Not flush|
|Product weight|38 g|
|Housing material|PBT<br>Chrome-plated|
|Switching status indication|Yellow LED|
|Degree of protection|IP67|
|Resistance to interference from magnetic fields|Magnetic direct and alternating fields|
|Corrosion resistance class (CRC)|2 - Moderate corrosion stress|
|LABS (PWIS) conformity|VDMA24364 Zone III|
|Selection of additional sensor information|with reduction factor 1 – resistance to magnetic fields|
|Electrical output|NPN|
|Selection of sensor version|Standard|



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

2/2 



## Links

- [View this product on Novapart](https://novapart.co/products/538317/proximity-sensor-12-mm-m18-npn-10-vdc-to-30-sief)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/festo/538317/sief-m18nb-ns-s-l-proximity-sensor/dp/3906417)
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