{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6263-6CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6263-6CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6263-6CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6263-6CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6263-6CC, miniature circuit breaker, 2-pole, B-curve, 63 A rated current, 400 V AC, 6 kA breaking capacity per EN 60898.","salesMarkdown":"## Panel fit and wiring constraints The quick-assembly mounting system snaps onto the rail without tools. Humidity derating applies above 55 °C: max 95% RH at 55 °C, dropping to 35% at 75 °C. The 5SY6263-6CC carries a 6 kA breaking capacity per EN 60898 at 400 V AC, and 5 kA per UL 1077 / CSA C22.2 No. 235. That 6 kA rating is the standard for downstream distribution in a typical industrial panel where the upstream transformer or main breaker limits fault current to that level. Energy limiting class 3 means it restricts let-through energy enough to protect downstream wiring and devices in a selective coordination scheme. The breaker is designed for mechanical engineering and industrial applications per its suitability listing. It carries overvoltage category III, suitable for fixed-installation distribution boards. The functional letter F per DIN EN 61346-2 and DIN EN 81346-2 classifies it as a protective device in the schematic. Touch protection is integrated on the terminals. Compliance documentation (declaration of conformity, CE marking, UL/CSA recognition) is available from the manufacturer's standard documentation set for the SENTRON 5SY6 series.","metaTitle":"Siemens 5SY6263-6CC SENTRON MCB, 63 A, 2-Pole, B-Curve, 6 kA","metaDescription":"Siemens 5SY6263-6CC SENTRON miniature circuit breaker, 63 A, 2-pole, B tripping characteristic, 6 kA breaking capacity per EN 60898. Current lifecycle stage. Quoted to order agains","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 35 mm²","Width":"36 mm","title":"5SY6263-6CC","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 35 mm²","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 6kA, 2-pole, B, 63A","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +55 °C","Mounting type":"Quick assembly system","Number of poles":"2","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","at AC / rated value":"400 V","Overvoltage category":"III","Combined Terminal Top":"Yes","Energy limiting class":"3","Number of width units":"2","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY6CC","Suitability for operation":"Mechanical engineering / industry","Current / at AC / rated value":"63 A","Tripping characteristic class":"B","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"6 kA","Position / of power supply cord":"Any","Product feature / Touch protection":"Yes","Influence of the surrounding temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","at AC / acc. to UL 1077 and CSA C22.2 No.235":"5 kA","Tightening torque / with screw-type terminals":"2.5 ... 3.5 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":"440 V","Mechanical service life (switching cycles) / typical":"10 000","Tightening torque [lbf·in] / with screw-type terminals":"22 ... 31 lbf·in"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7d3e3eb084e5e09bef8baa783fb2c983.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=28463&mlfb=5SY6263-6CC"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SY6263-6CC?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ; availability and current pricing are confirmed at quote time."},{"question":"What is 5SY6263-6CC's listed depth?","answer":"The overall depth is 76 mm; the installation depth behind the panel surface is 70 mm. Width is 36 mm (2 width units), height is 90 mm."},{"question":"What conductor sizes does 5SY6263-6CC accept?","answer":"Both solid and stranded conductors from 0.75 mm² up to 35 mm² fit the combined top and bottom terminals."},{"question":"Will 5SY6263-6CC drop into a panel specified around 5SL6563-7BB without rewiring?","answer":"The 5SY6263-6CC is a 2-pole, 63 A, B-curve breaker with 36 mm width and 70 mm installation depth. The peer 5SL6563-7BB is a different series with different dimensions and ratings; verify panel cutout and wiring before substituting. The 5SY6 series uses the same quick-assembly DIN-rail mount as the 5SL series, but terminal positions and depth may differ."},{"question":"What compliance documentation does Siemens provide for 5SY6263-6CC?","answer":"The breaker carries CE marking, UL 1077 and CSA C22.2 No. 235 recognition, and is designed to EN 60898. Standard manufacturer documentation includes declaration of conformity, RoHS/REACH statements, and the technical datasheet for the SENTRON 5SY6 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6263-6CC","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/5SY6263-6CC 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}}