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3TK2810-0BA01
Safety Relay, 24 VDC, 4PST-NO, DPST-NC, SIRIUS Series, DIN Rail, 3 A, Screw
⚠️ 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: Safety Relays
- Product Range: SIRUS 3TK28 Series
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 987.45 € |
| Current stock | 10+ |
| Lead time | 30 days |
**3TK2810-0BA01** **Data sheet** SIRIUS safety relay safety-oriented Standstill monitoring 24 V DC, 45 mm screw terminal EC instantaneous: 3 NO + 1 NC EC delayed: 0 SC: 3 Auto-start Basic unit max. error category EN 954-1: 4 Maximum achievable PL according to EN 138491: Maximum achievable SIL according to IEC 61508: 3 ||SIRIUS safety relay safety-oriented Standstill monitoring 24 V DC, 45 mm screw<br>terminal EC instantaneous: 3 NO + 1 NC EC delayed: 0 SC: 3 Auto-start Basic unit<br>max. error category EN 954-1: 4 Maximum achievable PL according to EN 13849-<br>1: Maximum achievable SIL according to IEC 61508: 3| |---|---| |**product brand name**|SIRIUS| |**product designation**|Standstill monitor| |**design of theproduct**|for safe stoppage monitoring| |**product type designation**|3TK28| |**Product Function**<br>~~|~~|| |**product function**<br>~~|~~|~~|~~| |● automatic start|No| |● light barrier monitoring|No| |● standstill monitoring|Yes| |●protective door monitoring|No| |● magneticallyoperated switch monitoringNC-NO|No| |● magneticallyoperated switch monitoringNC-NC|No| |● rotation speed monitoring|No| |● laser scanner monitoring|No| |● light arraymonitoring|No| |● EMERGENCY OFF function|No| |● monitored start-up|No| |●pressure-sensitive mat monitoring|No| |**product feature cross-circuit-proof**|No| |**suitability for interactionpress control**|No| |**suitability for use**|| |●position switch monitoring|No| |● EMERGENCY-OFF circuit monitoring|No| |● valve monitoring|No| |● opto-electronicprotection device monitoring|No| |● tactile sensor monitoring|No| |● magneticallyoperated switch monitoring|No| |●proximityswitch monitoring|No| |● safetyswitch|Yes| |● safety-related circuits|Yes| |**General technical data**<br>~~|~~|| |certificate of suitabilityUL approval<br>~~|~~|Yes<br>~~|~~| |**insulation voltage rated value**|690 V| |**surge voltage resistance rated value**|6 000 V| |**protection class IP**|| |● of the enclosure|IP20| |● of the terminal|IP20| |**shock resistance**|8g/ 10 ms| |**vibration resistance according to IEC 60068-2-6**|10 ... 55 Hz: 0.35 mm| Subject to change without notice © Copyright Siemens 3TK28100BA01 Page 1/5 5/29/2026 |**operating frequency maximum**|1 200 1/h| |---|---| |electrical endurance(operatingcycles)typical|200 000| |**Substance Prohibitance(day/month/year)**|05/01/2012| |**SVHC substance name**|Lead CAS-No. 7439-92-1| |**Net Weight**|0.387 kg| |**Ambient conditions**|| |installation altitude at height above sea level maximum|2 000 m| |**ambient temperature**|| |● duringoperation|-25 ... +60 °C| |● duringstorage|-40 ... +75 °C| |relative humidityduringoperation|10 ... 95 %| |air pressure accordingto SN 31205|90 ... 106 kPa| |**Electromagnetic compatibility**|| |**installation environment regarding EMC**|This product is suitable for Class A environments only. In household<br>environments, this device can cause unwanted radio interference. The user is<br>required to implement appropriate measures in this case.| |**EMC emitted interference**|IEC 61000-6-2, IEC 61000-6-3| |**Safety related data**|| |**stop category according to IEC 60204-1**|0| |**average diagnostic coverage level(DCavg)**|99 %| |IEC 62061|| |SIL Claim Limit(subsystem)accordingto EN 62061|3| |**Safety Integrity Level(SIL) according to IEC 62061**|SIL 3| |PFHD with high demand rate accordingto IEC 62061|1.5E-9 1/h| |ISO 13849|| |categoryaccordingto EN ISO 13849-1|4| |**performance level(PL)**|| |**● according to ISO 13849-1**|PL e| |IEC 61508|| |**Safety Integrity Level(SIL)**|| |● accordingto IEC 61508|3| |● for delayed release circuit accordingto IEC 61508|SIL3| |**safety device type according to IEC 61508-2**|Type B| |**Average probability of failure on demand (PFDavg) with low**<br>**demand rate acc. to IEC 61508**|0.002 1/y| |hardware fault tolerance accordingto IEC 61508|1| |T1 value for proof test interval or service life according to IEC<br>61508|20 a| |Electrical Safety|| |**touchprotection against electrical shock**|finger-safe| |**adjustable response value voltage for standstill detection**|20 ... 400 mV| |**adjustable downtime**|0.2 ... 6 s| |**Short-circuit protection**|| |design of the fuse link for short-circuit protection of the NO<br>contacts of the relayoutputs required|quick: 5 A| |**Inputs**|| |**design of input**|| |● cascadinginput/functional switching|No| |● feedback input|Yes| |● start input|No| |**number of sensor inputs**|| |● 1-channel or 2-channel|1| |**Outputs**|| |**number of outputs as contact-affected switching element**|| |● as NC contact|| |— for signalingfunction instantaneous contact|2| |● as NO contact|| |— safety-related instantaneous contact|4| |— safety-related delayed switching|0| |**mechanical service life (operating cycles) typical**|50 000 000| Subject to change without notice © Copyright Siemens 3TK28100BA01 Page 2/5 5/29/2026 |**thermal current of the switching element with contacts**<br>**maximum**|5 A| |---|---| |**number of outputs as contact-less semiconductor**<br>**switching element**|| |● for signalingfunction|| |— delayed switching|0| |— instantaneous contact|2| |● safety-related|| |— delayed switching|0| |— instantaneous contact|0| |**switching capacity current of semiconductor outputs**|| |● for signalingfunction at DC-13 at 24 V|0.1 A| |**switching capacity current of the NO contacts of the relay**<br>**outputs at DC-13**|| |● at 24 V|2 A| |**switching capacity current of the NO contacts of the relay**<br>**outputs at AC-15**|| |● at 115 V|3 A| |● at 230 V|3 A| |**switching capacity current of the NC contacts of the relay**<br>**outputs at DC-13**|| |● at 24 V|2 A| |**switching capacity current of the NC contacts of the relay**<br>**outputs at AC-15**|| |● at 115 V|2 A| |● at 230 V|2 A| |**voltage measuring range at the measurement inputs at AC**<br>**according to UL maximum**|600 V| |**voltage measuring range at the measurement inputs at AC**<br>**maximum**|690 V| |**adjustable response value voltage for standstill detection**|20 ... 400 mV| |**input resistance at the measurement inputs**|500 kΩ| |**Times**|| |**adjustable OFF-delay time after opening of the safety**<br>**circuits**|0.2 ... 6 s| |adjustable downtime initial value|0.2 s| |adjustable downtime full-scale value|6 s| |**Control circuit/ Control**|| |**type of voltage of the control supply voltage**|DC| |**control supply voltage 1 at DC rated value**|24 V| |**operating range factor control supply voltage rated value of**<br>**magnet coil at DC**|| |● initial value|0.9| |● full-scale value|1.2| |**Installation/ mounting/ dimensions**|| |**mounting position**|any| |**fastening method**|screw and snap-on mounting| |**height**|138.5 mm| |**width**|45 mm| |**depth**|120 mm| |**Connections/ Terminals**|| |**type of electrical connection**|screw terminal| |**type of connectable conductor cross-sections**|| |● solid|1x(0.5 ... 4.0mm²), 2x(0.5 ... 2.5 mm²)| |● finelystranded with core endprocessing|1x(0.5 ... 2.5 mm²), 2x(0.5 ... 1.5 mm²)| |● for AWG cables solid|2x(20 ... 14)| |● for AWG cables stranded|2x(20 ... 14)| |**connectable conductor cross-section**|| |● solid|0.5 ... 4 mm²| |● finelystranded with core endprocessing|0.5 ... 2.5 mm²| |**AWG number as coded connectable conductor cross**<br>**section**|| Subject to change without notice © Copyright Siemens 3TK28100BA01 Page 3/5 5/29/2026 ● solid 20 ... 14 ● stranded 20 ... 14 **type of electrical connection plug-in socket** Yes ~~7~~ **Approvals Certificates Environment General Product Approval** Environmental Confirmations — ~~_——_~~ — «&) @) UK EAL S€ E&% **Functional Saftey Test Certificates other Railway** Type Examination CerSpecial Test CertificConfirmation Confirmation ~~—~~ Confirmation tificate ate QC PASS ~~7~~ **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=3TK2810-0BA01 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3TK2810-0BA01 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3TK2810-0BA01 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3TK2810-0BA01&lang=en **==> picture [74 x 141] intentionally omitted <==** **----- Start of picture text -----**<br> 44,8<br>in|<br>in<br>l<br>a )<br>105,9<br>**----- End of picture text -----**<br> **==> picture [21 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> 124,3<br>**----- End of picture text -----**<br> Subject to change without notice © Copyright Siemens 3TK28100BA01 Page 4/5 5/29/2026 **==> picture [459 x 328] intentionally omitted <==** **----- Start of picture text -----**<br> -F TEP<br>Logic<br>cil<br>last modified: 5/5/2026<br>A1+ A4 X1 X2 X3 A3 51 11 23 33 43<br>A2 L1 L2 L3 64 74 54 52 12 24 34 44<br>**----- End of picture text -----**<br> Subject to change without notice © Copyright Siemens 3TK28100BA01 Page 5/5 5/29/2026
Updated at April 23, 2026
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