{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SY4363-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SY4363-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SY4363-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SY4363-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SY4363-8CC, 3-pole miniature circuit breaker, D tripping characteristic, 63 A rated current, 10 kA breaking capacity per EN 60898, 400 V AC.","salesMarkdown":"## Siemens SENTRON 5SY4363-8CC — 63 A D-curve MCB, 3-pole Its 10 kA breaking capacity per EN 60898 covers most industrial panel fault levels; for UL 1077 / CSA C22.2 No.235 installations, the interrupting rating is 5 kA. ## Integration notes Rated for any mounting position; installation depth is 70 mm plus the 76 mm overall depth. The combined terminal at top and bottom accepts a single conductor per pole — no neutral switching on this 3P variant. Ambient temperature derating applies above 55 °C (95 % RH up to 55 °C, 55 % RH at 70 °C, 35 % RH at 75 °C). Designed for mechanical engineering and industrial applications per the manufacturer. Rated for 50/60 Hz, AC only. Maximum DC voltage is 72 V. The product carries IEC/EN 60898 and UL 1077 / CSA C22.2 No.235 certifications, covering most global panel standards.","metaTitle":"Siemens SENTRON 5SY4363-8CC MCB, 3P D 63 A 10 kA","metaDescription":"Siemens SENTRON 5SY4363-8CC miniature circuit breaker, 3-pole, D-curve, 63 A, 10 kA IEC, 5 kA UL 1077. Sourced to order; RFQ for pricing and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["3-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Width":"54 mm","title":"5SY4363-8CC","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"50/60 Hz","description":"Miniature circuit breaker 400 V 10kA, 3-pole, D, 63A","Halogen-Free":"Yes","Silicon-Free":"Yes","Mounting type":"Quick assembly system","Number of poles":"3","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Degree of pollution":"3","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","Number of width units":"3","Number of poles / Note":"3P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","Combined Terminal Bottom":"Yes","circuit-breaker / Design":"5SY4CC","Suitability for operation":"Mechanical engineering / industry","Tripping characteristic class":"D","at DC / rated value / maximum":"72 V","acc. to EN 60898 / rated value":"10 kA","Position / of power supply cord":"Any","Product feature / Touch protection":"Yes","Operating current / at AC / rated value":"63 A","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","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d408cb1b83580b79a64e245b5aafde40.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=364485&mlfb=5SY4363-8CC"},"ai":{"faq":[{"question":"Where can I buy 5SY4363-8CC and get a price?","answer":"The 5SY4363-8CC is sourced to order against an RFQ. Submit a request for current pricing and availability."},{"question":"What is the depth of 5SY4363-8CC?","answer":"The overall depth is 76 mm; the installation depth (behind the panel face) is 70 mm."},{"question":"Will 5SY4363-8CC drop into a panel specified for 5SY7140-8CC?","answer":"Both are 3-pole SENTRON MCBs on the same DIN-rail footprint, but the 5SY7140-8CC is a different rating and characteristic. The 5SY4363-8CC is a 63 A D-curve; the 5SY7140-8CC is a 40 A B-curve. Physically they share the same width (54 mm) and mounting system, so no rewiring of the busbar or enclosure is needed — but the protection curve and ampacity are different. Verify coordination before substitution."},{"question":"What compliance documentation does Siemens provide for 5SY4363-8CC?","answer":"The breaker carries IEC/EN 60898 and UL 1077 / CSA C22.2 No.235 approvals. The housing is halogen-free and silicon-free. Standard Siemens declarations (CE, UKCA, RoHS) are available per the product documentation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SY4363-8CC","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/5SY4363-8CC 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}}