{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6263-6RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6263-6RC","canonicalUrl":"https://aoctrl.com/siemens/5SL6263-6RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6263-6RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6 series, 5SL6263-6RC, miniature circuit breaker, 63 A, 2-pole, B characteristic, 7.5 kA breaking capacity per EN 60898, 2 MW wide.","salesMarkdown":"The 7.5 kA breaking capacity per EN 60898 tells you it can safely interrupt a fault current up to that level at the rated voltage; if your available fault current at the panel exceeds 7.5 kA, you need a higher-rated breaker upstream. Two poles (2P) on a 36 mm width (2 width units) means it occupies two adjacent DIN-rail slots in the enclosure. The 76 mm depth plus 70 mm installation depth leaves clearance behind the rail — standard for a 5SL6 family MCB. Wire range accepts 0.75 to 25 mm² solid or stranded, with a tightening torque of 2.5 to 3 N·m on the screw terminals. That covers most panel wiring from 1.5 mm² control circuits up to 25 mm² feeder tails. The terminals are touch-protected, and the breaker is sealable — useful for installations that require tamper-evident sealing after commissioning. This MCB is designed for residential and infrastructure installations per EN 60898. It protects branch circuits in distribution boards, lighting panels, and small commercial sub-panels where the load is predominantly resistive or lighting with low inrush. The 63 A rating and 2-pole configuration suit single-phase or two-phase circuits up to 415 V AC.","metaTitle":"Siemens 5SL6263-6RC SENTRON MCB, 63 A, 2-pole, B curve, 7.5","metaDescription":"Siemens 5SL6263-6RC SENTRON miniature circuit breaker, 63 A, 2-pole, B characteristic, 7.5 kA breaking capacity per EN 60898. Active production. Order to RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"36 mm","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +45 °C","Product designation":"Miniature circuit breaker","Protection class IP":"IP20, with connected conductors","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","Number of width units":"2","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SL6","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"63 A","Tripping characteristic class":"B","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"7.5 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"415 V","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/98efd983b456e516b352285b8b77313d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=65863&mlfb=5SL6263-6RC","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SL6263-6RC/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SL6263-6RC?","answer":"The breaking capacity is 7.5 kA per EN 60898 at 415 V AC. That is the rated short-circuit current it can safely interrupt."},{"question":"Will 5SL6263-6RC drop into a panel specified around 5SL4120-7CC?","answer":"Both are 2-pole SENTRON MCBs on a 36 mm footprint, so the mechanical fit and DIN-rail mounting are the same. But the 5SL6263-6RC is a 63 A B-curve device, while the 5SL4120-7CC is a different rating and characteristic — verify the circuit's load current and coordination requirements before swapping."},{"question":"What wire sizes does 5SL6263-6RC accept?","answer":"Solid and stranded conductors from 0.75 mm² up to 25 mm². Torque the screw terminals to 2.5–3 N·m."},{"question":"Where can I buy 5SL6263-6RC?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6263-6RC","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/5SL6263-6RC 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}}