{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY7463-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY7463-7","canonicalUrl":"https://aoctrl.com/siemens/5SY7463-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SY7463-7","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON miniature circuit breaker, 4-pole, C characteristic, 400 V AC, 60 V DC, 15 kA (EN 60898) / 20 kA (IEC 60947-2), order code 5SY7463-7.","salesMarkdown":"## Siemens 5SY7463-7 SENTRON MCB — 4-Pole C-Curve, 15/20 kA Breaking capacity is 15 kA per EN 60898 and 20 kA per IEC 60947-2 at 400 V AC; under DC conditions (60 V, max 72 V) it holds 15 kA per IEC 60947-2. For UL 1077 / CSA C22.2 No. 235 applications the rating is 5 kA. These figures tell you the fault-current headroom: at 15 kA it meets the standard domestic/commercial panel requirement; the 20 kA IEC rating gives extra margin in industrial distribution where available fault current may be higher. This is a current-production part (lifecycle stage: current). ## Standards, Approvals & Environmental The 5SY7463-7 is certified to IEC / EN 60898-1 (domestic/commercial MCB standard) and IEC / EN 60947-2 (industrial breaker standard), plus UL 1077 for North American supplementary protection. Ambient operating range is -40 °C to 75 °C, with humidity derating: max 95% RH at 55 °C, 55% at 70 °C, 35% at 75 °C. IP20 with connected conductors — the terminals are finger-safe only when wired; the breaker itself is not sealed against moisture ingress. Mount it inside a panel with at least IP54 enclosure if washdown or condensation is present. ## Panel Integration & Mounting Combined terminal top and bottom — line and load can enter from either direction, simplifying busbar routing in a crowded enclosure. Mounting position is any — the breaker operates correctly upright, sideways, or inverted. The neutral conductor is not switched (4-pole but all poles are phase poles; use a separate neutral bar if neutral isolation is required). Sealable option available for tamper-proofing in metering or critical circuits. Energy limitation class 3 means the breaker limits let-through energy to the lowest level per IEC 60898 — best selectivity with downstream devices and reduced arc-flash hazard on the load side.","metaTitle":"Siemens 5SY7463-7 SENTRON MCB, 4P C-Curve, 15/20 kA","metaDescription":"Siemens 5SY7463-7 SENTRON miniature circuit breaker, 4-pole, C characteristic, 15 kA (EN 60898) / 20 kA (IEC 60947-2), 400 V AC, 60 V DC. Current production. Order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"72 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Standard":"IEC / EN 60898-1, IEC / EN 60947-2 / UL1077","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"Quick assembly system","Mounting Position":"any","at AC rated value":"400 V","at DC rated value":"60 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":"4","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","according to EN 60898 rated value":"15 kA","according to IEC 60947-2 rated value":"20 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","at DC according to IEC 60947-2 rated value":"15 kA","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","supply voltage with single-phase operation at AC rated value":"230 V","power loss [W] for rated value of the current at AC in hot operating state per pole":"6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d8e832935196d2d0565d8c193d1f4f20.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=518660&mlfb=5SY7463-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SY7463-7/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 5SY7463-7 at 400 V AC?","answer":"15 kA per EN 60898 and 20 kA per IEC 60947-2 at 400 V AC. Under UL 1077 the rating is 5 kA."},{"question":"What is the C characteristic used for on this MCB?","answer":"The C curve (magnetic trip at 5–10× rated current) suits circuits with moderate inrush — small motors, fluorescent lighting banks, transformers, and general industrial loads where a B curve would nuisance-trip on startup."},{"question":"Where can I buy 5SY7463-7?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY7463-7","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/5SY7463-7 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}}