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3RQ3055-1SM30
Optocoupler, 24 VDC, Relays
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: SIEMENS
- Product type: Other Relay Accessories
- Product Range: SIRIUS 3RQ3 Series
| Delivery and price | |
|---|---|
| Units per pack | 5 |
| Price | 66.82 € |
| Current stock | 10+ |
| Lead time | 30 days |
**3RQ3055-1SM30** **Data sheet** !!! phased-out product !!! the preferred successor is 3RQ4055-1SM30 output coupler optocoupler 1 NO, transistor, 24 V DC output max. 30 V DC, 5 A shortcircuit-proof screw terminal width 6.2 mm thermal current 5 A ||!!! phased-out product !!! the preferred successor is 3RQ4055-1SM30 output<br>coupler optocoupler 1 NO, transistor, 24 V DC output max. 30 V DC, 5 A short-<br>circuit-proof screw terminal width 6.2 mm thermal current 5 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**|0.3 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**|5 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**<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|0.2 ms| |**OFF-delay time maximum**|0.3 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~~|| 3RQ30551SM30 Page 1/5 Subject to change without notice © Copyright Siemens 5/29/2026 |**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**|Yes| |**switching voltage of the semiconductor output at DC**|10 ... 30 V| |**ampacity of the semiconductor output at DC**|5 mA| |**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| 3RQ30551SM30 Page 2/5 Subject to change without notice © Copyright Siemens 5/29/2026 — at the side 0 mm ~~|~~ **Ambient conditions** installation altitude at height above sea level maximum 2 000 m **ambient temperature** ● during operation -25 ... +60 °C ● during storage -40 ... +85 °C ● during transport -40 ... +85 °C relative humidity during operation 10 ... 95 % ~~ee~~ **Approvals Certificates Environment General Product Approval** Environmental Confirmations ~~~~~~ € © HAL A **EMV Test Certificates Maritime application other** Type Test CertificConfirmation ates/Test Report ~~OO—CSC“‘:CC:s*CSC‘iés~~ **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=3RQ3055-1SM30 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RQ3055-1SM30 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RQ3055-1SM30 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RQ3055-1SM30&lang=en 3RQ30551SM30 Page 3/5 Subject to change without notice © Copyright Siemens 5/29/2026 **==> picture [356 x 257] intentionally omitted <==** **----- Start of picture text -----**<br> -K<br>|<br>a, oy x<br>-<br>paar Sy<br>} [t][e]<br>|<br>|<br>A1<br>+ +<br>+<br>A2 A2 0 14 13<br>**----- End of picture text -----**<br> ~~a~~ **last modified:** 4/9/2026 3RQ30551SM30 Subject to change without notice Page 4/5 5/29/2026 © Copyright Siemens 3RQ30551SM30 Page 5/5 Subject to change without notice © Copyright Siemens 5/29/2026
Updated at June 7, 2026
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