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5SM2842-8
Residual Current Unit, for 5SY Series Circuit Breaker
⚠️ 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: Circuit Breaker Accessories
- Product Range: SENTRON Series
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 157.37 € |
| Current stock | 10+ |
| Lead time | 30 days |
**5SM2842-8** **Data sheet** RC unit for 5SY, 4-pole, type A, selective, In: 40 A, 1000 mA, Un AC: 400 V |-<br>enna<br>5=<br>——___<br>in<br>1<br>an<br>=<br>F|<br>P<br>]<br>Figure similar|RC unit for 5SY, 4-pole, type A, selective, In: 40 A, 1000 mA, Un AC: 400 V| |---|---| |**Model**|| |**product brand name**|SENTRON| |**product designation**|RCD-unit| |**design of theproduct**|Selective| |**product type designation**|5SM2| |**product version**|for 5SY| |**General technical data**|| |**number ofpoles**|4| |**design ofpole**|4poles| |**size of installation devices according to DIN 43880**|1| |**touch protection against electrical shock according to EN**<br>**50274**|Finger and back-of-hand safe| |**mechanical service life(operating cycles) typical**|10 000| |**overvoltage category**|III| |**degree of pollution**|2| |**Voltage**|| |**type of voltage of the operating voltage**|AC| |insulation voltage(Ui)rated value|460 V| |surge voltage resistance rated value|4 000 V| |**tripping fault current rated value**|1 000 mA| ||| |**● operational current at AC rated value**|40 A| |**residual current type**|A| |**surge current resistance rated value**|5 kA| |**supply voltage**|| |● at AC|400 V| |● for testingequipment minimum|195 V| |**value range of the supply voltage frequency**|50 Hz| |**value range of the operating frequency**|50/60 Hz| |**Protection class**|| |**protection class IP**|IP20, if the distribution board is installed, with connected conductors| |**protection function false tripping**|Yes| |**Dissipation**|| |**power loss[W]**|| |● for rated value of the current at AC in hot operating state<br>perpole|1.9 W| |● maximum|5.7 W| |**Product details**|| 5SM28428 Page 1/5 Subject to change without notice © Copyright Siemens 5/31/2026 |**product feature OFF-delay time adjustable**|||No|||| |---|---|---|---|---|---|---| |**product feature rated fault current adjustable**<br>**product feature sealable**<br>~~re~~|||No<br>No|||| |**Connections**||||||| |**connectable conductor cross-section solid**||||||| |● minimum|||1.5 mm²|||| |● maximum|||25 mm²|||| |**connectable conductor cross-section stranded**||||||| |● minimum|||1.5 mm²|||| |● maximum|||25 mm²|||| |**tightening torque with screw-type terminals**||||||| |● minimum|||2.5 N·m|||| |● maximum<br>~~re~~|||3 N·m|||| |**position of power supply cord**|||top or bottom|||| |**Mechanical Design**||||||| |**height**|||90 mm|||| |**width**|||72 mm|||| |**depth**|||77 mm|||| |**installation depth**|||70 mm|||| |**number of modular width units**|||4|||| |**fastening method**|||DIN rail|||| |**mounting position**<br>**Net Weight**<br>~~ee~~|||any<br>315g|||| |**Environmental conditions**||||||| |**ambient temperature during operation**||||||| |● minimum|||-25 °C|||| |● maximum|||45 °C|||| |**ambient temperature during storage**||||||| |● minimum|||-40 °C|||| |● maximum|||75 °C|||| |**number of test cycles for environmental testing according**|||28|||| |**to IEC 60068-2-30**||||||| |**Certificates**<br>~~ee~~||||||| |**reference code according to IEC 81346-2**|||F|||| |**Approvals Certificates**<br>~~a~~||||||| |**Environment**|**General Product Approval**|||||| |Environmental Con-<br>firmations<br>Environmental Con-<br>firmations<br>~~——_—~~|||Miscellaneous<br>~~——~~||Miscellaneous<br>~~—~~|| |**General Product Approval**|||||**other**|| |Confirmation<br>FAL|ce|||cA||| |**other**<br>**Dangerous goods**||||||| |Confirmation<br>Transport Information||||||| |**Further information**<br>~~ee~~||||||| |**Information on the packaging**||||||| |https://support.industry.siemens.com/cs/ww/en/view/109813875||||||| |**Information for datageneration and storage**||||||| |5SM28428||||Subject to change without notice||| |Page 2/5|||5/31/2026|© Copyright Siemens||© Copyright Siemens| 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=5SM2842-8 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/5SM2842-8 **Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, ...)** https://www.automation.siemens.com/bilddb/cax_en.aspx?mlfb=5SM2842-8 **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> **==> picture [439 x 307] intentionally omitted <==** **----- Start of picture text -----**<br> 70,3<br>53,8<br>123,9<br>451,<br>99,9<br>**----- End of picture text -----**<br> 5SM28428 Page 3/5 Subject to change without notice © Copyright Siemens 5/31/2026 **==> picture [338 x 146] intentionally omitted <==** **----- Start of picture text -----**<br> -F<br>eee<br>za i FA<br>1 3 5 7<br>2 4 6 8<br>**----- End of picture text -----**<br> **last modified:** 4/12/2025 5SM28428 Page 4/5 Subject to change without notice © Copyright Siemens 5/31/2026 5SM28428 Page 5/5 Subject to change without notice © Copyright Siemens 5/31/2026
Updated at June 7, 2026
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