{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3647-5","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3647-5","canonicalUrl":"https://aoctrl.com/siemens/5SM3647-5","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3647-5","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3647-5, selective RCCB, 4-pole, 80 A (40 °C), 300 mA Type B residual current, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The Siemens 5SM3647-5 is a 4-pole selective RCCB (residual current circuit breaker) from the SENTRON series, rated 80 A at 40 °C with a 300 mA Type B residual current trip. The selective design (time-delayed) means it coordinates with downstream RCDs — the 5SM3647-5 holds during a fault on a sub-circuit so only the closest device trips, keeping the rest of the panel live. That matters for a molding cell or a conveyor line where a single ground fault shouldn't drop the whole zone. Type B detection covers AC, pulsating DC, smooth DC, and high-frequency residual currents — the kind you get from VFDs, rectifiers, and switched-mode supplies common on modern automation panels. Above that it derates linearly: 76.8 A at 50 °C, 73.6 A at 55 °C, 70.4 A at 60 °C, 67.2 A at 65 °C, and 64 A at 70 °C.","metaTitle":"Siemens 5SM3647-5 SENTRON RCCB, 4P, 80A, 300mA Type B, Selec","metaDescription":"Siemens 5SM3647-5 SENTRON selective RCCB, 4-pole, 80 A rated, 300 mA Type B residual current, 10 kA SCCR. DIN rail mount. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"72 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Product Designation":"RCCB","at AC / rated value":"80 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":"B","I2t value / permissible":"70 000 A²·s","at 40 °C / rated value":"80 A","at 45 °C / rated value":"80 A","at 50 °C / rated value":"76.8 A","at 55 °C / rated value":"73.6 A","at 60 °C / rated value":"70.4 A","at 65 °C / rated value":"67.2 A","at 70 °C / rated value":"64 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"0.8 kA","For Testing Equipment / Minimum":"195 V","Position / Of Power Supply Cord":"Top or bottom (bottom for SIGRES function also in switched-off state)","Let-Through Current / Permissible":"7 500 kA","Tripping Fault Current / Rated Value":"300 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Current Resistance / Rated Value":"5 kA","according to IEC 61008-1 / rated value":"0.8 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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=90282&mlfb=5SM3647-5","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3647-5/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 5SM3647-5 and 5SL4363-7?","answer":"The 5SM3647-5 is a selective (time-delayed) Type B RCCB; the 5SL4363-7 is a standard (instantaneous) Type A RCBO. The 5SM3647-5 is the correct choice when you need coordination with downstream RCDs and Type B detection for VFD-fed circuits. The 5SL4363-7 will trip faster but may nuisance-trip on high-frequency leakage and won't coordinate in a multi-level RCD scheme."},{"question":"Where can I buy 5SM3647-5?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What compliance documentation does Siemens provide for 5SM3647-5?","answer":"The part carries IEC 61008-1 and EN 60898 compliance, with a rated conditional short-circuit current of 0.8 kA per those standards. It is silicon-free and designed for overvoltage category III. Standard Siemens declarations (RoHS, REACH) apply; specific certificates are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3647-5","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/5SM3647-5 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}}