# Optocoupler, SPST-NO, 24 VDC, Relays

![Product image](https://novapart.co/image/farnell:3533952/)

**URL**: https://novapart.co/products/3RQ3052-1SM30/optocoupler-spst-no-24-vdc-relays
**SKU**: 3RQ3052-1SM30
**Manufacturer**: SIEMENS
**Category**: Switches & Relays || Relays || Relay Accessories || Other Relay Accessories
**Price**: €51.9400
**Stock**: 10+

## Specifications

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

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3533952/)

**3RQ3052-1SM30** 

**Data sheet** 

||!!! phased-out product !!! the preferred successor is 3RQ4052-1SM30 output<br>coupler optocoupler 1 NO, transistor, 24 V DC output max. 30 V DC, 2 A short-<br>circuit-proof screw terminal width 6.2 mm 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**||
|**display version LED**|Yes|
|**product featureprotective coating onprinted-circuit board**|No|
|**product component**||
|● relayoutput|No|
|● semi-conductor output|Yes|
|**consumed activepower**|0.3 W|
|insulation voltage for overvoltage category III according to IEC<br>60664 with degree ofpollution 3 rated value|50 V|
|**surge voltage resistance rated value**|2.5 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**|100 Hz|
|**thermal current**|2 A|
|**reference code according to IEC 81346-2**|K|
|**Substance Prohibitance(day/month/year)**|03/25/2015|
|**Net Weight**|0.032 kg|
|**Control circuit/ Control**||
|**control supply voltage at DC rated value**|11 ... 30 V|
|**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**<br>~~OC~~||
|● at DC maximum<br>~~OC~~|0.2 ms<br>|
|**OFF-delay time maximum**<br>~~OC~~|0.3 ms<br>|
|**Mechanical data**<br>||
|**product component plug-in socket**<br>|No<br>|
|**Auxiliary circuit**<br>~~ry~~||
|**type of switching contact**<br>~~ry~~|NO contact<br>~~ry~~|
|**number of NO contacts for auxiliary contacts**|1|
|**Main circuit**<br>~~SS~~||
|**type of voltage**<br>~~SS~~|DC<br>~~SS~~|
|**Inputs/ Outputs**<br>~~ee~~||
|**property of the output short-circuitproof**<br>~~ee~~<br>~~CO~~|Yes<br>~~ee~~|
|**switching voltage of the semiconductor output at DC**<br>~~CO~~|10 ... 30 V|
|**ampacity of the semiconductor output at DC**<br>~~CO~~|5 mA ... 2 A|
|**Electromagnetic compatibility**||
|EMC emitted interference according to IEC 60947-1|ambience A (industrial sector)|



Subject to change without notice © Copyright Siemens 

|EMC immunityaccordingto IEC 60947-1|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|
|**Ambient conditions**|||
|installation altitude at height above sea level maximum||2 000 m|
|**ambient temperature**|||
|● duringoperation||-25 ... +60 °C|
|● duringstorage||-40 ... +85 °C|
|● duringtransport||-40 ... +85 °C|
|relative humidityduringoperation||10 ... 95 %|
|**Approvals Certificates**|||
|**Environment**|**General Product Approval**||



3RQ30521SM30 Page 2/3 

Subject to change without notice © Copyright Siemens 

5/31/2026 

Environmental Confirmations ~~—~~ 

**EMV** 

**Test Certificates Maritime application other** Type Test CertificConfirmation ates/Test Report ~~_~~ 

~~a~~ **Further information Information on the packaging** https://support.industry.siemens.com/cs/ww/en/view/109813875 **Information for data generation and storage** https://support.industry.siemens.com/cs/ww/en/view/109995012 

**Information- and Downloadcenter (Catalogs, Brochures,…)** https://www.siemens.com/ic10 

**Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RQ3052-1SM30 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RQ3052-1SM30 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RQ3052-1SM30 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RQ3052-1SM30&lang=en 

**last modified:** 

4/9/2026 

3RQ30521SM30 Page 3/3 

Subject to change without notice © Copyright Siemens 

5/31/2026 



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- [Supplier page](https://es.farnell.com/siemens/3rq3052-1sm30/other-relay-accessories/dp/3533952)
---

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