# Optocoupler, SPST-NO, 24 VDC, Relays

![Product image](https://novapart.co/image/farnell:3533954/)

**URL**: https://novapart.co/products/3RQ3052-1SM50/optocoupler-spst-no-24-vdc-relays
**SKU**: 3RQ3052-1SM50
**Manufacturer**: SIEMENS
**Category**: Switches & Relays || Relays || Relay Accessories || Other Relay Accessories
**Price**: €79.6900
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Product Range | SIRIUS 3RQ3 Series |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3533954/)

**3RQ3052-1SM50** 

**Data sheet** 

!!! phased-out product !!! the preferred successor is 3RQ4052-1SM50 output coupler optocoupler 1 NO triac, input 24 V DC output 20-264 V AC, 2 A width 6.2 mm screw terminal thermal current 2 A 

||!!! phased-out product !!! the preferred successor is 3RQ4052-1SM50 output<br>coupler optocoupler 1 NO triac, input 24 V DC output 20-264 V AC, 2 A width 6.2<br>mm screw terminal thermal current 2 A|
|---|---|
|**product brand name**|SIRIUS|
|**product category**|SIRIUS 3RQ3 couplingrelays in slim design|
|**product designation**|Couplingrelays with semiconductor output(notplug-in)|
|**design of theproduct**|Output couplinglink|
|**product type designation**|3RQ3|
|**General technical data**<br>~~|~~||
|**display version LED**<br>~~|~~|Yes<br>~~|~~|
|**product featureprotective coating onprinted-circuit board**|No|
|**product component**||
|● relayoutput|No|
|● semi-conductor output|Yes|
|**consumed activepower**|0.25 W|
|insulation voltage for overvoltage category III according to IEC<br>60664 with degree ofpollution 3 rated value|300 V|
|**surge voltage resistance rated value**|4 kV|
|**flammability class of enclosure material**|UL94 V-0|
|**shock resistance**||
|**● according to IEC 60068-2-27**|sinusoidal half-wave 15g/ 11 ms|
|**vibration resistance**||
|**● according to IEC 60068-2-6**|6 ... 150 Hz: 2g|
|**switching frequency**|10 Hz|
|**thermal current**|2 A|
|**reference code according to IEC 81346-2**|K|
|**Substance Prohibitance(day/month/year)**|03/25/2015|
|**Net Weight**|0.034 kg|
|**Control circuit/ Control**<br>~~|~~||
|**control supply voltage at DC rated value**<br>~~|~~|11 ... 30 V<br>~~|~~|
|**operating range factor control supply voltage rated value at**<br>**DC**||
|● initial value|1|
|● full-scale value|1|
|**minimum switching voltage when switching on**|11 V|
|**maximum switching voltage when switching off**|5 V|
|**ON-delay time**||
|● at DC maximum|10 ms|
|**OFF-delay time maximum**|9 ms|
|**Mechanical data**<br>~~|~~||
|**product component plug-in socket**<br>~~|~~<br>~~OO~~|No<br>~~|~~|
|**Auxiliary circuit**<br>~~OO~~<br>~~—C—SC“(‘NC;C#CC(‘(C(C‘éCs~~||



3RQ30521SM50 Page 1/5 

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|**type of switching contact**|NO contact|
|---|---|
|**number of NO contacts for auxiliary contacts**|1|
|**Main circuit**||
|**type of voltage**|DC|
|**Inputs/ Outputs**||
|**property of the output short-circuitproof**|No|
|**ampacity of the semiconductor output at AC**|5 mA ... 2 A|
|**Electromagnetic compatibility**||
|EMC emitted interference accordingto IEC 60947-1|ambience A(industrial sector)|
|EMC immunityaccordingto IEC 60947-1|corresponds to degree of severity3|
|**conducted interference**||
|● due to burst accordingto IEC 61000-4-4|2 kV|
|● due to conductor-earth surge accordingto IEC 61000-4-5|2 kV|
|● due to conductor-conductor surge according to IEC<br>61000-4-5|1 kV|
|**field-based interference according to IEC 61000-4-3**|10 V/m|
|**electrostatic discharge according to IEC 61000-4-2**|6 kV contact discharge / 8 kV air discharge|
|**Display**||
|displayversion as status displaybyLED|LEDgreen|
|**Connections/ Terminals**||
|**product function removable terminal**|No|
|**type of electrical connection**||
|● for auxiliaryand control circuit|screw-type terminals|
|**type of connectable conductor cross-sections**||
|● solid|1x(0.25 ... 2.5 mm²)|
|● finelystranded with core endprocessing|1x(0.25 ... 1.5 mm²)|
|● for AWG cables solid|1x(20 ... 14)|
|**connectable conductor cross-section**||
|● solid|0.25 ... 2.5 mm²|
|● finelystranded with core endprocessing|0.25 ... 1.5 mm²|
|**AWG number as coded connectable conductor cross**<br>**section**||
|● solid|20 ... 14|
|tighteningtorque with screw-type terminals|0.5 ... 0.6 N·m|
|**Installation/ mounting/ dimensions**||
|**mounting position**|any|
|**fastening method**|snap-on mounting|
|**height**|93 mm|
|**width**|6.2 mm|
|**depth**|72.5 mm|
|**required spacing**||
|● with side-by-side mounting||
|— forwards|0 mm|
|— backwards|0 mm|
|— upwards|0 mm|
|— downwards|0 mm|
|— at the side|0 mm|
|● forgroundedparts||
|— forwards|0 mm|
|— backwards|0 mm|
|— upwards|0 mm|
|— at the side|0 mm|
|— downwards|0 mm|
|● for liveparts||
|— forwards|0 mm|
|— backwards|0 mm|
|— upwards|0 mm|
|— downwards|0 mm|
|— at the side|0 mm|



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ae Ambient conditions<br>installation altitude at height above sea level maximum 2 000 m<br>ambient temperature<br>● during operation -25 ... +60 °C<br>● during storage -40 ... +85 °C<br>● during transport -40 ... +85 °C<br>relative humidity during operation 10 ... 95 %<br>ee Approvals Certificates<br>Environment General Product Approval<br>Environmental Con-<br>firmations<br>— G ©. FAL<br>General Product Ap- EMV Test Certificates Maritime application other<br>proval<br>Type Test Certific- Confirmation<br>ates/Test Report<br>UK —_—— ——<br>other<br>QC PASS<br>e Further information s<br>Information on the packaging<br>https://support.industry.siemens.com/cs/ww/en/view/109813875<br>Information for data generation and storage<br>https://support.industry.siemens.com/cs/ww/en/view/109995012<br>Information- and Downloadcenter (Catalogs, Brochures,…)<br>https://www.siemens.com/ic10<br>Industry Mall (Online ordering system)<br>https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RQ3052-1SM50<br>Cax online generator<br>https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RQ3052-1SM50<br>Service&Support (Manuals, Certificates, Characteristics, FAQs,...)<br>https://support.industry.siemens.com/cs/ww/en/ps/3RQ3052-1SM50<br>Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)<br>https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RQ3052-1SM50&lang=en<br>**----- End of picture text -----**<br>


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**last modified:** 

4/9/2026 

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5/29/2026 



## Links

- [View this product on Novapart](https://novapart.co/products/3RQ3052-1SM50/optocoupler-spst-no-24-vdc-relays)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/3rq3052-1sm50/other-relay-accessories/dp/3533954)
---

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