{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2625-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2625-8","canonicalUrl":"https://aoctrl.com/siemens/5SM2625-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2625-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM2625-8, selective RC unit for 5SY, 2-pole, Type A, rated 63 A / 300 mA, 230 V AC, 50 Hz, DIN rail mount.","salesMarkdown":"Selective (short-time delayed) design lets it ride through transient earth faults and coordinate with downstream RCDs, so only the faulted branch trips and the rest of the distribution board stays live. At higher enclosure temperatures the unit derates: 58.6 A at 40 °C, 58.59 A at 45 °C, 56.7 A at 50 °C, 54.81 A at 55 °C, 53.55 A at 60 °C, 52.29 A at 65 °C, and 50.4 A at 70 °C. The 300 mA rated tripping fault current is a high-threshold setting, typical for selective (S-type) RCDs. It avoids nuisance tripping from leakage currents in long cable runs or equipment with filters, while still providing earth-fault protection. The surge current resistance of 5 kA means it withstands lightning-induced or switching transients without damage. Rated insulation voltage is 460 V, overvoltage category III, so it's suitable for fixed-installation distribution boards fed from the mains supply. Depth is 70 mm, matching the 5SY MCB it couples with. Snaps onto DIN rail (REG) in any mounting position. The RC unit is designed as a companion for the 5SY series MCB — it clips alongside or feeds from the same busbar. IP20 with connected conductors in an installed distribution board; the enclosure itself provides the finger-safe coverage. Silicon-free construction (product feature) matters for applications where silicone outgassing can contaminate contacts or optics — automotive paint shops or clean-room adjacent panels, for instance.","metaTitle":"Siemens 5SM2625-8 SENTRON RC Unit, 2-Pole, Type A, 63 A, 300","metaDescription":"Siemens 5SM2625-8 SENTRON selective RC unit for 5SY MCB, 2-pole, Type A, 63 A, 300 mA. Active production, DIN rail mount. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"71 mm","title":"5SM2625-8","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"RC unit for 5SY, 2-pole, type A, selective, In: 63 A, 300 mA, Un AC: 230 V","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"for 5SY","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Product Designation":"RC unit","at AC / rated value":"63 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Selective","Residual Current Type":"A","at 40 °C / rated value":"58.6 A","at 45 °C / rated value":"58.59 A","at 50 °C / rated value":"56.7 A","at 55 °C / rated value":"54.81 A","at 60 °C / rated value":"53.55 A","at 65 °C / rated value":"52.29 A","at 70 °C / rated value":"50.4 A","Number Of Modular Width Units":"2","Product Feature / Silicon-Free":"Yes","For Testing Equipment / Minimum":"195 V","Position / Of Power Supply Cord":"top or bottom","Insulation Voltage / Rated Value":"460 V","Tripping Fault Current / Rated Value":"300 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Current Resistance / Rated Value":"5 kA","Switching Function / Short-Term Delayed":"No","size of installation devices / acc. to DIN 43880":"1","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7a2dd1985884d9e16c216382b6756c4e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=392877&mlfb=5SM2625-8"},"ai":{"faq":[{"question":"Where can I buy the 5SM2625-8?","answer":"The 5SM2625-8 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quotation."},{"question":"What is the 5SM2625-8's depth and width?","answer":"The depth is 70 mm and the width is 71 mm (2 modular width units), matching the 5SY MCB it couples with for a flush panel layout."},{"question":"What does the selective (S-type) designation mean on this RC unit?","answer":"Selective means the unit has a short time delay (typically 40–150 ms) before tripping on a residual fault. This allows downstream RCDs to clear first, so only the faulted branch is isolated and the rest of the distribution board stays live — essential for coordination in multi-level distribution."},{"question":"What compliance documentation is available for the 5SM2625-8?","answer":"As a Siemens SENTRON industrial control component, the 5SM2625-8 carries CE marking for the European market and is designed to IEC/EN 61008 standards for residual current devices. RoHS and REACH compliance declarations are available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2625-8","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/5SM2625-8 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}