3RK3321-2AA10

**3RK3321-2AA10** 

**Data sheet** 

SIRIUS, Extension module 3RK33 for modular Safety system 3RK3 8 DI, 24 V DC Can be parameterized via MSS ES 22.5 mm overall width Spring-type terminal without connection cable 

|SIRIUS, Extension module 3RK33 for modular Safety system 3RK3 8 DI, 24 V DC<br>Can be parameterized via MSS ES 22.5 mm overall width Spring-type terminal<br>without connection cable<br>**product brand name**<br>SIRIUS<br>**product category**<br>Modular SafetySystem<br>**design of theproduct**<br>8 DI<br>**product function**<br>● EMERGENCY OFF function<br>No<br>●protective door monitoring<br>No<br>● evaluation: electro-sensitiveprotective equipment<br>No<br>● evaluation: selector switch<br>No<br>● evaluation: two-hand operatorpanel<br>No<br>● evaluation: enablingswitch<br>No<br>● monitored start-up<br>Yes<br>**insulation voltage rated value**<br>50 V<br>**degree ofpollution**<br>3<br>**surge voltage resistance rated value**<br>500 V<br>**shock resistance**<br>15g/ 11 ms<br>**vibration resistance according to IEC 60068-2-6**<br>5 ... 500 Hz: 0.75 mm<br>**reference code according to IEC 81346-2**<br>K<br>**Substance Prohibitance(day/month/year)**<br>05/01/2012<br>**SVHC substance name**<br>Lead CAS-No. 7439-92-1<br>Lead monoxide (lead oxide) CAS-No. 1317-36-8<br>2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-<br>10-5<br>Melamine CAS-No. 108-78-1<br>6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol CAS-No. 119-47-1<br>**Net Weight**<br>0.143 kg<br>installation altitude at height above sea level maximum<br>2 000 m<br>relative humidityduringoperation<br>10 ... 95 %<br>**Electromagnetic compatibility**<br>**conducted interference**<br>● due to burst accordingto IEC 61000-4-4<br>2 kV(powerports)<br>● due to conductor-earth surge accordingto IEC 61000-4-5<br>2 kV<br>● due to conductor-conductor surge according to IEC<br>61000-4-5<br>1 kV<br>**field-based interference according to IEC 61000-4-3**<br>10 V/m, 3 V/m, 1 V/m<br>**electrostatic discharge according to IEC 61000-4-2**<br>4 kV contact discharge / 8 kV air discharge<br>Electrical Safety<br>**touch protection against electrical shock**<br>finger-safe<br>**Inputs/ Outputs**<br>**product function**<br>●parameterizable outputs<br>No<br>**number of inputs**<br>aoe -—<br>rrr<br>betel}<br>444aaa<br>=a<br>fog<br>OM,<br>fdaaaa<br>,<br>See<br>ow|SIRIUS, Extension module 3RK33 for modular Safety system 3RK3 8 DI, 24 V DC<br>Can be parameterized via MSS ES 22.5 mm overall width Spring-type terminal<br>without connection cable||
|---|---|---|
||SIRIUS||
||Modular SafetySystem||
||8 DI||
||||
||No||
||No||
||No||
||No||
||No||
||No||
||Yes||
||50 V||
||3||
||500 V||
||15g/ 11 ms||
||5 ... 500 Hz: 0.75 mm||
||K||
||05/01/2012||
||Lead CAS-No. 7439-92-1<br>Lead monoxide (lead oxide) CAS-No. 1317-36-8<br>2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-<br>10-5<br>Melamine CAS-No. 108-78-1<br>6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol CAS-No. 119-47-1||
||0.143 kg||
||2 000 m||
||10 ... 95 %||
||||
||No||
||||



Subject to change without notice © Copyright Siemens 

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5/30/2026 

|● safety-related|● safety-related|0|0|
|---|---|---|---|
|● non-safety-related||8||
|number of outputs for testingcontact-based sensors||0||
|number of outputs as contact-affected switching element safety-<br>related||||
|● 1-channel||0||
|● 2-channel||0||
|**number of outputs as contact-less semiconductor**<br>**switching element**||||
|● safety-related 2-channel||0||
|● non-safety-related||0||
|**type of voltage**||DC||
|**control supply voltage 1 at DC rated value**||24 V||
|**mounting position**||vertical||
|**fastening method**||DIN rail||
|**height**||105 mm||
|**width**||22.5 mm||
|**depth**||124 mm||
|**type of electrical connection**||spring-loaded terminals||
|**Approvals Certificates**<br>~~a~~||||
|**Environment**<br>~~a~~|**General Product Approval**<br>~~a~~||**EMV**<br>~~a~~|



|**Further information**<br>~~ee~~|
|---|
|**Information on the packaging**|
|https://support.industry.siemens.com/cs/ww/en/view/109813875|
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|https://support.industry.siemens.com/cs/ww/en/view/109995012|
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|https://www.siemens.com/ic10|
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|https://support.industry.siemens.com/cs/ww/en/ps/3RK3321-2AA10|
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|https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RK3321-2AA10&lang=en|
|**last modified:**<br>4/4/2026|



Subject to change without notice © Copyright Siemens 

3RK33212AA10 Page 2/2 

5/30/2026