{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4163-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4163-6","canonicalUrl":"https://aoctrl.com/siemens/5SL4163-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4163-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 5SL4163-6, 1-pole, 63 A, B characteristic, 10 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"The Siemens SENTRON 5SL4163-6 is a 1-pole miniature circuit breaker rated 63 A at 30 °C with a B tripping characteristic — the magnet trip fires at 3 to 5 times rated current, so it's sized for resistive and general-purpose loads where you don't want nuisance trips from moderate inrush. The 10 kA breaking capacity per EN 60898 (also 10 kA per IEC 60947-2) means it can safely interrupt a fault up to 10,000 A at 400 V AC without welding its contacts or cascading upstream — that covers most residential and light-commercial service-entrance scenarios. Rated voltage is 400 V AC single-phase (250 V single-phase) and 440 V multi-phase, so it fits final subcircuits in a 230/400 V panel. The B-curve also means the breaker holds 63 A continuous at 30 °C, but derates to 58.21 A at 40 °C, 55.44 A at 45 °C, and 50.16 A at 55 °C — if the panel ambient runs hot, size the load side accordingly. Sealable (padlockable) handle is standard, letting you lock out a circuit for maintenance. The 18 mm width occupies one modular unit — plan your rail layout accordingly.","metaTitle":"Siemens SENTRON 5SL4163-6 MCB, 1P, 63 A, B Curve, 10 kA","metaDescription":"Siemens SENTRON 5SL4163-6 miniature circuit breaker, 1-pole, 63 A, B tripping characteristic, 10 kA breaking capacity per EN 60898. Rated 400 V AC. Active lifecycle. Quoted to orde","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"18 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"1P","Number Of Poles":"1","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Product Designation":"Miniature circuit breaker","at AC / rated value":"63 A","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Energy Limitation Class":"3","according to EN 61346-2":"F","at 30 °C / rated value":"63 A","at 40 °C / rated value":"58.21 A","at 45 °C / rated value":"55.44 A","at 55 °C / rated value":"50.16 A","according to IEC 81346-2":"F","Suitability For Operation":"Residential buildings/infrastructure","Number Of Modular Width Units":"1","Tripping Characteristic Class":"B","at DC / rated value / maximum":"72 V","Product Feature / Touch Protection":"Yes","according to EN 60898 / rated value":"10 kA","supply voltage / at AC / rated value":"400 V","according to IEC 60947-2 / rated value":"10 kA","Type Of Voltage / Of The Operating Voltage":"AC","with multi-phase operation / at AC / maximum":"440 V","Product Component / 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=274105&mlfb=5SL4163-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL4163-6/alternatives.json"},"ai":{"faq":[{"question":"Is 5SL4163-6 available via RFQ confirmation and what is the lead time?","answer":"We source this part to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — send us your quantity and we'll get you a firm lead time."},{"question":"When sourcing 5SL4163-6, what's the closest functional second-source — 5SL3116-6MB?","answer":"The 5SL3116-6MB is a functional peer in the same SENTRON family but rated 16 A B-curve, not 63 A — it won't drop into a 63 A slot without rewiring the load circuit. For a 63 A B-curve replacement, stick with the 5SL4163-6 or check the 5SL6-series (5SL6132-6MB for 32 A, 5SL6550-7BB for 50 A) if you need a different current rating."},{"question":"What is 5SL4163-6's listed depth (76 mm) on this component line?","answer":"The overall depth is 76 mm, with an installation depth of 70 mm behind the panel surface. That includes the front toggle travel."},{"question":"What is 5SL4163-6's listed width (18 mm) on this component line?","answer":"Width is 18 mm — one modular unit on standard DIN rail."},{"question":"Will 5SL4163-6 drop into a panel that was specified around 5SL3116-6MB without rewiring?","answer":"Mechanically yes — same 18 mm width, same DIN-rail footprint. But electrically no: the 5SL3116-6MB is a 16 A breaker; swapping to a 63 A breaker without verifying the downstream conductor size and load rating violates code. The panel wiring must be rated for 63 A."},{"question":"What compliance documentation does this brand provide for 5SL4163-6 (RoHS, REACH, UL, IEC)?","answer":"The breaker is designed per EN 60898 and IEC 60947-2, both with 10 kA breaking capacity. It carries the SENTRON brand from Siemens. For RoHS/REACH declarations and specific UL listing status, we can provide the manufacturer's declaration of conformity with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4163-6","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/5SL4163-6 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}}