{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3646-8KL","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3646-8KL","canonicalUrl":"https://aoctrl.com/siemens/5SV3646-8KL","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3646-8KL","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3646-8KL, 4-pole RCCB, 63 A rated current, 300 mA Type A residual current, selective design, DIN rail mount.","salesMarkdown":"## Panel fit and selectivity The Siemens 5SV3646-8KL is a 4-pole SENTRON RCCB rated 63 A at 40 °C through 55 °C, with a 300 mA Type A residual current trip and a selective (time-delayed) characteristic. The selective design means it withstands a 5 kA surge current without tripping, coordinating downstream with standard RCCBs so only the faulted branch clears. This avoids nuisance blackouts on the main incomer when a downstream device sees a transient earth fault. At 65 °C it derates to 57.35 A, and at 70 °C to 48.8 A. The maximum permissible ambient for storage is 75 °C, with a minimum of -40 °C. Operating frequency is 50/60 Hz, and the supply frequency is rated at 50 Hz. The short-circuit current rating is 10 kA per IEC 61008-1, with an I²t withstand of 110 000 A²·s and a let-through current of 7 100 kA. The part is silicon-free, which matters for paint-shop or potting applications where silicone outgassing causes adhesion failure. ## Installation and approvals Mounts on DIN rail (REG) in any position. Overvoltage category III, IP20 protection (with connected conductors in an installed distribution board). The test button requires a minimum 100 V supply. Approvals include EN 60898 (rated 0.8 kA) and IEC 61008-1 (rated 0.8 kA). The Type A residual current detection handles AC sinusoidal and pulsating DC fault currents — the standard choice for circuits with rectified loads like switching power supplies or variable-speed drives.","metaTitle":"Siemens 5SV3646-8KL RCCB, 4-Pole, 63 A, 300 mA Type A","metaDescription":"Siemens SENTRON 5SV3646-8KL RCCB, 4-pole, 63 A rated, 300 mA Type A residual current, 10 kA SCCR, selective design. Active production, available 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":"72 mm","title":"5SV3646-8KL","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 4-pole, type A, selective, In: 63 A, 300 mA, Un AC: 400 V, N left","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"N left","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Operating Frequency":"50/60 Hz","Product Designation":"RCCB","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","I2t value / permissible":"110 000 A²·s","at 40 °C / rated value":"63 A","at 45 °C / rated value":"63 A","at 50 °C / rated value":"63 A","at 55 °C / rated value":"63 A","at 60 °C / rated value":"63 A","at 65 °C / rated value":"57.35 A","at 70 °C / rated value":"48.8 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":"100 V","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"7 100 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 (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$221.13","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ed280646498d532ac59ddeccc41d4200.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=627710&mlfb=5SV3646-8KL"},"ai":{"faq":[{"question":"Can a 4-pole RCCB be used in a single-phase system?","answer":"Yes, a 4-pole RCCB like the 5SV3646-8KL can be used in a single-phase system by connecting the phase and neutral through two of the poles and leaving the remaining two poles unused. The device monitors the vector sum of currents through all connected poles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3646-8KL","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/5SV3646-8KL 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}}