# Proximity Sensor, 1 mm, 3 mm, NPN, 10 VDC to 30 VDC, SIEH Series

![Product image](https://novapart.co/image/farnell:3906365/)

**URL**: https://novapart.co/products/538266/proximity-sensor-1-mm-3-npn-10-vdc-to-30-sieh
**SKU**: 538266
**Manufacturer**: FESTO
**Category**: Sensors & Transducers || Sensors || Proximity Sensors / Proximity Switches || Inductive Proximity Sensors
**Price**: €120.1500
**Stock**: 10+
**Lead Time**: 36 days (indicative)

## Specifications

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

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3906365/)

## **Proximity sensor SIEH-3B-NS-K-L** 

Part number: 538266 

General operating condition 

## **Data sheet** 

|**Feature**|**Value**|
|---|---|
|Design<br>~~a~~|Round<br>~~a~~|
|Conforms to standard<br>~~GO~~|EN 60947-5-2<br>~~GO~~|
|Symbol<br>~~GO~~|00991704<br>~~GO~~|
|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>~~GO~~|according to UK RoHS regulations (UK-R)<br>~~GO~~|
|Measuring principle<br>~~GO~~|Inductive<br>~~GO~~|
|Rated operating distance<br>~~QO~~|1 mm<br>~~QO~~|
|Assured operating distance<br>~~GO~~|0.81 mm<br>~~GO~~|
|Reduction factors<br>~~**a**~~|Aluminum = 0.5<br>Stainless steel St 18/8 = 0.8<br>Copper = 0.45<br>Brass = 0.6<br>Steel St 37 = 1.0|
|Ambient temperature<br>~~**a**~~|-25 °C ... 70 °C|
|Repetition accuracy<br>~~**a**~~<br>~~a~~|0.02 mm|
|Switching output<br>~~a~~|NPN|
|Switching element function<br>~~a~~<br>~~GO~~|N.O. contact<br>~~GO~~|
|Hysteresis<br>~~a~~|≤0.12 mm<br>~~a~~|
|On time<br>~~I~~|0.02 ms<br>~~I~~|
|Max. switching frequency DC<br>~~a~~|3000 Hz<br>~~a~~|
|Max. output current<br>~~DO~~|100 mA<br>~~DO~~|
|Voltage drop<br>~~a~~|≤2 V<br>~~a~~|
|Inductive protective circuit|Installed<br>Output current <100 mA<br>and switching frequency < 10 Hz|
|Residual current<br>~~GO~~|≤0.1 mA<br>~~GO~~|
|Short-circuit protection<br>~~GO~~|Pulsed<br>~~GO~~|
|DC operating voltage range<br>~~a~~|10 V ... 30 V<br>~~a~~|
|Residual ripple<br>~~GO~~|20%<br>~~GO~~|
|Idle current<br>~~GO~~|≤10 mA<br>~~GO~~|
|Reverse polarity protection<br>~~GO~~|for all electrical connections<br>~~GO~~|
|Electrical connection 1, connection type<br>~~DO~~|Cable<br>~~DO~~|
|Electrical connection 1, connection technology<br>~~GO~~|Open end<br>~~GO~~|
|Electrical connection 1, number of pins/wires<br>~~GO~~|3<br>~~GO~~|
|Cable length<br>~~GO~~|2.5 m<br>~~O~~|



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

1/2 

|**Feature**|**Value**|
|---|---|
|Material of cable sheath|TPE-U(PUR)|
|Insulating sheath material|PVC|
|Size|3 mm|
|Type of mounting|Clamped|
|Mounting type|Flush|
|Product weight|18 g|
|Housing material|high-alloy stainless steel|
|Switching status indication|Yellow LED|
|Ambient temperature with flexible cable installation|-5 °C ... 70 °C|
|Degree of protection|IP67|
|Corrosion resistance class (CRC)|4 - Particularly high corrosion stress|
|LABS (PWIS) conformity|VDMA24364-B2-L|
|Selection of additional sensor information|With increased switching distance|
|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/538266/proximity-sensor-1-mm-3-npn-10-vdc-to-30-sieh)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/festo/538266/sieh-3b-ns-k-l-proximity-sensor/dp/3906365)
---

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