5ST3015-2

**5ST3015-2** 

**Data sheet** 

auxiliary switch with test button 2 NC, low power for miniature circuit breakers 5SL, 5SY, 5SP, incorporated switch 5TL1, RCBO 5SU1 (without 5SU1…FP/FR), RCCB 5SV (for 5SU1, handle coupler 5ST3805-1 is required) 

||auxiliary switch with test button 2 NC, low power for miniature circuit breakers 5SL,<br>5SY, 5SP, incorporated switch 5TL1, RCBO 5SU1 (without 5SU1…FP/FR), RCCB<br>5SV (for 5SU1, handle coupler 5ST3805-1 is required)|
|---|---|
|**Model**<br>~~a~~||
|**product brand name**<br>~~a~~|SENTRON|
|**product designation**|auxiliaryswitches|
|**design of theproduct**|Mountable|
|**design of theproduct factory mounted**|No|
|**electrical endurance(operating cycles) typical**|10 000|
|**Voltage**<br>~~ee~~||
|insulation voltage rated value<br>~~ee~~|50 V<br>|
|surge voltage resistance rated value<br>|1 kV<br>|
|**Current**<br>~~a~~||
|**operational current at DC rated value**<br>~~a~~|0.005 ... 0.05 A<br>~~a~~|
|**Supply voltage**<br>~~ee~~||
|**supply voltage at DC rated value**<br>~~ee~~|~~ee~~|
|● minimum|5 V|
|**operating voltage**||
|● at DC rated value minimum|5 V|
|● at DC rated value maximum|30 V|
|**protection class IP**|IP20|
|**Control current**<br>~~ee~~||
|type of voltage of control voltage<br>~~ee~~|AC/DC<br>~~ee~~|
|**Product details**<br>~~a~~||
|**product component**<br>~~a~~|~~a~~|
|● auxiliaryswitch|Yes|
|**number of fault signal contacts**|0|
|**number of NC contacts**|2|
|**number of NO contacts**|0|
|**number of CO contacts**|0|
|**product extension can be mounted**|Universal|
|**product extension**|auxiliaryswitch|
|**Connections**<br>~~a~~||
|**connectable conductor cross-section**<br>~~a~~|~~a~~|
|● minimum|0.5 mm²|
|● maximum|2.5 mm²|
|**AWG number as coded connectable conductor cross**<br>**section**||
|● minimum|24|
|● maximum|12|
|**tightening torque with screw-type terminals**||
|● maximum|1 N·m|



5ST30152 Page 1/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 

|**Mechanical Design**<br>~~a~~|**Mechanical Design**<br>~~a~~|**Mechanical Design**<br>~~a~~|
|---|---|---|
|**height**|90 mm||
|**width**|9 mm||
|**depth**|70 mm||
|**number of modular width units**<br>1<br>~~ee~~|||
|**Net Weight**|71g||
|**Environmental conditions**|||
|**ambient temperature during operation**|||
|● minimum|-25 °C||
|● maximum<br>55 °C<br>~~ee~~|||
|ambient temperature duringstorage minimum|-40 °C||
|**Approvals Certificates**|||
|**Environment**||**General Product Approval**|
|Environmental Con-<br>Environmental Con-||Miscellaneous|
|firmations<br>firmations<br>~~——~~<br>e<br>EPD|e<br>EPD|~~——~~|
|**General Product Approval**||**other**|
|Confirmation<br>TL<br>6=—i(<‘éwcéeE:;COSCK||Confirmation<br>~~_~~|
|**Railway**|||
|Special Test Certific-|||
|ate|||
|**Further information**<br>~~ee~~|||
|**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/lowvoltage/catalogs|||
|**Industry Mall (Online ordering system)**|||
|https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=5ST3015-2|||
|**Service&Support (Manuals, Certificates, Characteristics, FAQs,...)**|||
|https://support.industry.siemens.com/cs/ww/en/ps/5ST3015-2|||
|**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)**|||
|https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5ST3015-2|||
|**CAx-Online-Generator**|||
|https://www.siemens.com/cax|||
|**Tender specifications**|||
|https://www.siemens.com/specifications|||
|**Characteristic curves**|||
|https://curves.simaris.siemens.com/curves/<mmp_prod_noCOMP="HAUPT"></mmp_prod__no>|||



5ST30152 Page 2/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 

**==> picture [511 x 730] intentionally omitted <==**

**----- Start of picture text -----**<br>
-K<br>11 21<br>12 22<br>**----- End of picture text -----**<br>


5ST30152 Page 3/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 

**==> picture [456 x 340] intentionally omitted <==**

**----- Start of picture text -----**<br>
11 12<br>21 22<br>last modified: 5/5/2026 G<br>**----- End of picture text -----**<br>


5ST30152 Page 4/5 

Subject to change without notice © Copyright Siemens 

6/3/2026 

5ST30152 Page 5/5 

Subject to change without notice © Copyright Siemens 

6/3/2026