{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL4440-8CC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL4440-8CC","canonicalUrl":"https://aoctrl.com/siemens/5SL4440-8CC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL4440-8CC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL4440-8CC, 4-pole miniature circuit breaker, D tripping characteristic, 40 A rated current, 10 kA breaking capacity per EN 60898, 400/440 V AC.","salesMarkdown":"Rated frequency is 50 Hz, and it carries a maximum 440 V AC in multi-phase operation. It occupies 4 width units (72 mm wide, 90 mm high, 76 mm deep) with a 70 mm installation depth behind the panel. Terminals accept solid or stranded copper from 0.75 mm² up to 25 mm², torqued to 2.5–3 N·m. The housing is IP20 with connected conductors, sealable, halogen-free, and silicon-free — fine for residential and infrastructure panels where off-gassing matters.","metaTitle":"Siemens 5SL4440-8CC SENTRON MCB, 4P D 40A 10kA","metaDescription":"Siemens SENTRON 5SL4440-8CC miniature circuit breaker, 4-pole, D-curve, 40 A, 10 kA breaking capacity per EN 60898. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"72 mm","title":"5SL4440-8CC","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","description":"Miniature circuit breaker 400 V 10kA, 4-pole, D, 40 A Circuit breaker 400 V 10kA, 4-pole, D, 40 A","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +55 °C","Number of poles":"4","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","Overvoltage category":"3","Design of the product":"5SL miniature circuit breakers","Number of width units":"4","Number of poles / Note":"4P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SL4CC","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"40 A","Tripping characteristic class":"D","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"10 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"400 V","Influence of the surrounding temperature":"+55 °C, max. 95% humidity","Vibration resistance / acc. to IEC 60068-2-6":"50 m/s² at 25 to 150 Hz","with multi-phase operation / at AC / maximum":"440 V","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"No","with multi-phase operation / at AC / rated value":"440 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/718e46e478838c226725521b54130449.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=2130&mlfb=5SL4440-8CC"},"ai":{"faq":[{"question":"What is the breaking capacity of the 5SL4440-8CC?","answer":"It is rated 10 kA per EN 60898 at 400 V AC, which means it safely interrupts fault currents up to that level without upstream damage."},{"question":"What wire sizes does the 5SL4440-8CC accept?","answer":"Terminals accept solid or stranded copper from 0.75 mm² up to 25 mm², with a recommended tightening torque of 2.5 to 3 N·m."},{"question":"Where can I buy the 5SL4440-8CC?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL4440-8CC","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/5SL4440-8CC 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}}