{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2847-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2847-8","canonicalUrl":"https://aoctrl.com/siemens/5SM2847-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2847-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM2847-8, selective RCD unit, Type A, 4-pole, 100 A AC rated, 1000 mA rated fault current, IP20, current production.","salesMarkdown":"The Siemens 5SM2847-8 is a selective RCD unit from the SENTRON series, designed for 4-pole (3-phase + neutral) installations. It's a Type A residual-current device — catches sinusoidal AC fault currents plus pulsating DC fault currents up to 1000 mA rated tripping current. The 'selective' design means it has a deliberate short time delay (not adjustable — OFF-delay time is fixed) so that downstream RCDs trip first during a fault, keeping this unit as the backup. That's your coordination play: put this upstream of standard RCDs on a distribution board to avoid a whole-panel blackout on a single branch fault. Rated 100 A at AC. Derates to 93 A at 40 °C, 90 A at 50 °C, 80 A at 70 °C. Snap-on DIN rail mount (REG fastening method), 5 modular width units. Dimensions: 124 mm wide × 90 mm high × 70 mm deep. The unit is designed for the 5SP4 distribution board series but fits any standard DIN-rail enclosure with the right cutout. Not sealable — no padlock hasp for lockout/tagout on the device itself.","metaTitle":"Siemens SENTRON 5SM2847-8 RCD, Selective Type A, 100 A, 4-Po","metaDescription":"Siemens SENTRON 5SM2847-8 selective RCD, Type A, 100 A, 4-pole, 1000 mA fault current. Current production. Quoted to order. IP20, 50/60 Hz, 460 V insulation.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"124 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"No","Design Of Pole":"4 poles","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"REG","Mounting Position":"any","at AC rated value":"100 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"for 5SP4","Degree Of Pollution":"2","Product Designation":"RCD-unit","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":"93 A","at 45 °C rated value":"93 A","at 50 °C rated value":"90 A","at 55 °C rated value":"87 A","at 60 °C rated value":"85 A","at 65 °C rated value":"83 A","at 70 °C rated value":"80 A","OFF-delay time adjustable":"No","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"5","Position Of Power Supply Cord":"top or bottom","Rated Fault Current Adjustable":"No","Protection Function False Tripping":"Yes","Tripping Fault Current Rated Value":"1 000 mA","insulation voltage (Ui) rated value":"460 V","Surge Current Resistance Rated Value":"5 kA","Surge Voltage Resistance Rated Value":"4 000 V","Value Range Of The Operating Frequency":"50/60 Hz","reference code according to IEC 81346-2":"F","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50 Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","for rated value of the current at AC in hot operating state per pole":"5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/69e76795395ca24f726403c0c7fafba4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=518277&mlfb=5SM2847-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM2847-8/alternatives.json"},"ai":{"faq":[{"question":"What is 5SM2847-8's listed depth (70 mm) on this component line?","answer":"The installation depth is 70 mm. That's the depth behind the panel face, including the DIN rail clip."},{"question":"What is 5SM2847-8's listed width (124 mm) on this component line?","answer":"The width is 124 mm, which corresponds to 5 modular width units on a standard DIN-rail grid."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2847-8","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/5SM2847-8 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}