{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY6263-7CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY6263-7CC","canonicalUrl":"https://aoctrl.com/siemens/5SY6263-7CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY6263-7CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY6263-7CC, miniature circuit breaker, C-curve, 2-pole, 6 kA per EN 60898, 400 V AC, 2 MW.","salesMarkdown":"The Siemens SENTRON 5SY6263-7CC is a 2-pole miniature circuit breaker with a C tripping characteristic, rated 6 kA per EN 60898 and 5 kA per UL 1077 / CSA C22.2 No.235. Rated at 400 V AC (440 V max multi-phase or single-phase) and 50/60 Hz, this MCB handles standard industrial supply voltages across most regions. The 6 kA breaking capacity per EN 60898 covers typical panel fault levels; the 5 kA rating per UL 1077 / CSA 235 confirms it for North American supplementary protection applications. Mounting position is any, so vertical or horizontal DIN-rail orientation works. The quick assembly system and combined terminals (top and bottom) speed up busbar and wiring connections. ## Where it fits — panel integration Vibration resistance per IEC 60068-2-6 (±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz) confirms it for machine-mounted cabinets on conveyors or compressors. ## Temperature derating and ambient limits Rated for ambient temperature from -40 °C to 75 °C, with derating above 55 °C: max 95% humidity at 55 °C, 55% at 70 °C, 35% at 75 °C. The C-curve trip thresholds shift with temperature — if the panel runs hot (near 75 °C), expect the breaker to trip slightly faster at a given overload.","metaTitle":"Siemens 5SY6263-7CC SENTRON MCB, C-Curve, 2-Pole, 6 kA","metaDescription":"Siemens SENTRON 5SY6263-7CC miniature circuit breaker, C-curve, 2-pole, 6 kA per EN 60898, 400 V AC. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"36 mm","title":"5SY6263-7CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","description":"Miniature circuit breaker 400 V 6kA, 2-pole, C, 63A","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"2P","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20, with connected conductors","Overvoltage Category":"III","Combined Terminal Top":"Yes","Energy Limitation Class":"3","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Neutral Conductor Switching":"No","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"6 kA","Influence Of The Surrounding Temperature":"max. 95% to 55°C, max. 55% to 70°C, max. 35% to 75°C","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","operating voltage at DC rated value maximum":"72 V","with multi-phase operation at AC rated value":"440 V","with single-phase operation at AC rated value":"440 V","at AC according to UL 1077 and CSA C22.2 No.235":"5 kA","vibration resistance according to IEC 60068-2-6":"±1mm at 5 to 25Hz; 50m/s² at 25 to 150Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"4.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/14154272aa1c560562c1089c42dd5c52.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=12424&mlfb=5SY6263-7CC"},"ai":{"faq":[{"question":"Where can I buy 5SY6263-7CC and get a price?","answer":"The 5SY6263-7CC is available to order. Submit an RFQ for current pricing and availability — confirmed at quote time through our independent distribution network."},{"question":"What is the closest functional alternative to 5SY6263-7CC?","answer":"The 5SY5240-7 is a sibling in the same SENTRON 5SY series but with a B-curve characteristic (3–5x In trip) versus the C-curve (5–10x In) of the 5SY6263-7CC. For motor or transformer loads with moderate inrush, the C-curve is the correct choice; the B-curve would nuisance-trip on startup. They share the same 2-pole, 2 MW footprint and DIN-rail mount, so a swap is mechanically possible but electrically mismatched unless the load is purely resistive."},{"question":"What compliance documentation does Siemens provide for 5SY6263-7CC?","answer":"The 5SY6263-7CC carries ratings per EN 60898 (6 kA) and UL 1077 / CSA C22.2 No.235 (5 kA), with overvoltage category III and pollution degree 3. It is halogen-free and silicon-free. Standard Siemens documentation includes the datasheet, declaration of conformity, and RoHS/REACH compliance statements available on request."},{"question":"Will 5SY6263-7CC drop into a panel specified for 5SY5240-7 without rewiring?","answer":"Mechanically yes — same 2 MW (36 mm) DIN-rail footprint, same depth and terminal layout. Electrically the C-curve is a different trip characteristic from the B-curve; verify the load inrush before swapping. If the original spec called for a B-curve (resistive or lighting loads), the C-curve may not trip fast enough on short-circuit for that application."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY6263-7CC","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/5SY6263-7CC 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}}