{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SJ4263-7HG41","brand":"Siemens","brandSlug":"siemens","productSlug":"5SJ4263-7HG41","canonicalUrl":"https://aoctrl.com/siemens/5SJ4263-7HG41","factsUrl":"https://aoctrl.com/api/mcp/products/5SJ4263-7HG41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SJ4 series, miniature circuit breaker, 2-pole, C-curve, 63 A at 40 °C, 10 kA per EN 60898, 36 mm wide, DIN rail mount.","salesMarkdown":"The Siemens 5SJ4263-7HG41 is a SENTRON 5SJ4 miniature circuit breaker (MCB) rated 63 A at 40 °C with a C-curve trip characteristic, 2 poles, and a 10 kA breaking capacity per EN 60898. Rated 63 A continuously at 30 °C and 40 °C. Derates to 61.7 A at 45 °C, 60.4 A at 50 °C, 59.1 A at 55 °C, and 58 A at 60 °C. For a panel running at 50 °C ambient, expect a usable continuous current of 60.4 A — roughly 4% headroom loss from the nameplate. The DC rating maxes at 60 V, so it can serve DC branch circuits up to that voltage, but the 10 kA breaking capacity is specified per EN 60898 (AC).","metaTitle":"Siemens 5SJ4263-7HG41 SENTRON MCB, 2-Pole C-Curve 63 A, 10 k","metaDescription":"Siemens SENTRON 5SJ4263-7HG41 miniature circuit breaker, 2-pole, C-curve, 63 A rated at 40 °C, 10 kA breaking capacity per EN 60898. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Width":"36 mm","Height":"110 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"on standard mounting rail","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breakers","acc. to IEC 81346-2":"F","at AC / rated value":"63 A","protection class IP":"IP20, with connected conductors, IP 40 in the handle range","Overvoltage Category":"3","Tunnel Terminals Top":"No","Vibration Resistance":"50 m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)","Combined Terminal Top":"Yes","Design Of The Product":"Miniature circuit-breaker 5SJ4","acc. to DIN EN 61346-2":"F","Product Function / Note":"Terminal tightening torque for Cu, 60/75°C; 3.5Nm/31lb.in","Tunnel Terminals Bottom":"No","at 30 °C / rated value":"63 A","at 40 °C / rated value":"63 A","at 45 °C / rated value":"61.7 A","at 50 °C / rated value":"60.4 A","at 55 °C / rated value":"59.1 A","at 60 °C / rated value":"58 A","Combined Terminal Bottom":"Yes","Suitability For Operation":"Mechanical engineering / industry","Number Of Modular Width Units":"2","Tripping Characteristic Class":"C","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"10 kA","Position / Of Power Supply Cord":"Any","acc. to IEC 60947-2 / rated value":"15 kA","Product Feature / Touch Protection":"Yes","supply voltage / at AC / rated value":"400 V","installation environment regarding EMC":"Suitable for environment B (immunity to interference not applicable)","insulation voltage / at AC / rated value":"440 V","Product Function / Neutral Conductor Switching":"No","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2339a0644702f4d8318c510ea90e9d7f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=109352&mlfb=5SJ4263-7HG41","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SJ4263-7HG41/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SJ4263-7HG41?","answer":"10 kA rated breaking capacity per EN 60898 at 400 V AC. That's the standard industrial distribution-board fault level for this class of MCB."},{"question":"What is the closest functional second-source for 5SJ4263-7HG41?","answer":"The 5SY4116-7CV is a C-curve MCB in the same SENTRON family, but it is a different current rating (16 A vs 63 A) and single-pole vs 2-pole. It will not drop into a panel specified around 5SJ4263-7HG41 without rewiring — the pole count and ampacity differ. For a 63 A 2-pole C-curve replacement, stick with the 5SJ4 series."},{"question":"Where can I buy 5SJ4263-7HG41?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SJ4263-7HG41","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/5SJ4263-7HG41 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}}