{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3647-6KK01","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3647-6KK01","canonicalUrl":"https://aoctrl.com/siemens/5SM3647-6KK01","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3647-6KK01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3647-6KK01, 4-pole RCCB, type A, short-time delayed, In 80 A, IΔn 300 mA, Un AC 400 V, DIN rail mount.","salesMarkdown":"The 5SM3647-6KK01: The 80 A rated current and 300 mA residual trip define the load and protection envelope. The 300 mA rating is a deliberate choice for circuits with high leakage from equipment filters or long cable runs — it avoids nuisance tripping that a 30 mA device would cause. The short-time delayed design (type A, short-time delayed) means it withstands surge currents up to 3 kA without tripping, so it coordinates with upstream overcurrent devices and handles inrush from motor drives or UPS systems without dropping the line. Type A detection catches both sinusoidal AC residual currents and pulsating DC fault currents, which covers most modern electronic loads — switched-mode power supplies, variable-speed drives, and rectifier circuits. Snaps onto DIN rail (REG profile). The screw-type terminals accept solid or stranded conductors from 1.5 mm² up to 25 mm², and the tightening torque range is 2.5 to 3 N·m.","metaTitle":"Siemens 5SM3647-6KK01 SENTRON RCCB, 4P, Type A, 80 A, 300 mA","metaDescription":"Siemens SENTRON 5SM3647-6KK01 RCCB, 4-pole, type A, short-time delayed, 80 A rated, 300 mA trip, 400 V AC. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Solid":"1.5 ... 25 mm²","Width":"72 mm","Height":"90 mm","Stranded":"1.5 ... 25 mm²","Rated Value":"50 Hz","Mounting type":"DIN rail (REG)","During Storage":"-40 ... +75 °C","Number of poles":"4","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °C","Operating frequency":"50Hz","Product designation":"RCCB","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Short-time delayed","Number of width units":"4","Type of fault current":"A","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SM3","Short-circuit current rating":"10 kA","Current / at AC / rated value":"80 A","Product feature / silicon-free":"Yes","Position / of power supply cord":"top or bottom","Protection against electrical shock":"Finger and back-of-hand safe","Supply voltage / at AC / rated value":"400 V","Surge current resistance / rated value":"3 kA","Switching function / short-term delayed":"Yes","Tripping residual current / rated value":"300 mA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Size of installation devices / acc. to DIN 43880":"1","Supply voltage / for testing equipment / minimum":"100 V","Mechanical service life (switching 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=47503&mlfb=5SM3647-6KK01","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3647-6KK01/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SM3647-6KK01 used for?","answer":"It's a 4-pole residual current circuit breaker (RCCB) type A, short-time delayed, rated 80 A / 300 mA / 400 V. It protects circuits against earth faults, including pulsating DC from electronic loads, while the 300 mA trip and short-time delay prevent nuisance tripping on circuits with high leakage or surge currents."},{"question":"Where can I buy the 5SM3647-6KK01?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"Will the 5SM3647-6KK01 drop into a panel designed for a 5SY4304-7CV?","answer":"Not without rewiring. The 5SM3647-6KK01 is a 4-pole RCCB (77 mm deep, 72 mm wide, 4 width units), while the 5SY4304-7CV is a 3-pole MCB (76 mm deep, 54 mm wide, 3 width units). Different function, different pole count, different footprint — they are not drop-in replacements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3647-6KK01","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/5SM3647-6KK01 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}}