{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4163-8","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4163-8","canonicalUrl":"https://aoctrl.com/siemens/5SL4163-8","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4163-8","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4 series, 5SL4163-8 miniature circuit breaker, 1-pole, 63 A, D tripping characteristic, 10 kA breaking capacity, 400 V AC.","salesMarkdown":"## 63 A D-curve MCB for high-inrush loads The Siemens 5SL4163-8 is a SENTRON 5SL4 miniature circuit breaker rated 63 A with a D tripping characteristic, meaning it tolerates the high inrush currents typical of motor starters, transformers, and welding equipment without nuisance tripping — the magnetic trip operates at 10–20× rated current, so it passes the start-up spike and clears only a sustained overload or hard short. Single-pole (1P) construction, rated 400 V AC phase-to-neutral, with a maximum of 440 V for multi-phase operation — sized for a single-phase branch circuit or one leg of a three-phase panel. Screw terminals accept solid or stranded copper from 0.75 mm² up to 25 mm², with a tightening torque of 2.5–3 N·m — enough for the 16–25 mm² tails a 63 A circuit usually needs. Same part, different passport: this genuine Siemens MCB moves through independent cross-border channels. Genuine is genuine — the warranty geofencing is a manufacturer policy, not a quality difference.","metaTitle":"Siemens 5SL4163-8 SENTRON MCB, 63 A, D Curve, 10 kA, 1P","metaDescription":"Siemens 5SL4163-8 SENTRON 5SL4 miniature circuit breaker, 63 A, D tripping characteristic, 10 kA breaking capacity per EN 60898/IEC 60947-2, 1-pole, 400 V AC. Current lifecycle sta","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"18 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +55 °C","Number of poles":"1","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-40 ... +75 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","Energy limiting class":"3","Number of width units":"1","Number of poles / Note":"1P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SL4","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"63 A","Tripping characteristic class":"D","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"10 kA","acc. to IEC 60947-2 / rated value":"10 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Influence of the surrounding temperature":"+55 °C, max. 95% humidity","with multi-phase operation / at AC / maximum":"440 V","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V","with single-phase operation / at AC / rated value":"250 V","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d3a30929ca482250edf88c9e09fac166.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=109361&mlfb=5SL4163-8","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4163-8/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL4163-8?","answer":"10 kA per EN 60898 and also 10 kA per IEC 60947-2 — the same figure under both standards, so it qualifies for distribution boards specified to either norm."},{"question":"Will 5SL4163-8 drop into a panel specified around 5SL3120-6MB without rewiring?","answer":"Both are 1-pole SENTRON 5SL series MCBs on the same 18 mm DIN-rail footprint, so the mechanical swap is straightforward. The 5SL3120-6MB is a 20 A C-curve; the 5SL4163-8 is a 63 A D-curve — the conductor sizing and upstream protection must be verified for the higher current rating before substitution."},{"question":"How do I get current pricing and availability for 5SL4163-8?","answer":"Submit an RFQ through the storefront — this part is sourced to order via independent distribution, and availability with current pricing is confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4163-8","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/5SL4163-8 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}}