{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SL6440-6RC","brand":"Siemens","brandSlug":"siemens","productSlug":"5SL6440-6RC","canonicalUrl":"https://aoctrl.com/siemens/5SL6440-6RC","factsUrl":"https://aoctrl.com/api/mcp/products/5SL6440-6RC","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SL6440-6RC, miniature circuit breaker, 40 A, 4-pole, B characteristic, 7.5 kA per EN 60898, 415 V AC rated, IP20, 4 width units.","salesMarkdown":"The Siemens 5SL6440-6RC is a SENTRON miniature circuit breaker rated 40 A at 415 V AC, 4-pole, with a B tripping characteristic and a 7.5 kA breaking capacity certified to EN 60898. Rated voltage for multi-phase operation is 440 V AC maximum; single-phase is 250 V AC. DC rating is limited to 60 V maximum — this is an AC-optimised breaker, not a general-purpose DC device. The 4-pole design (4P) switches all four poles simultaneously; neutral conductor switching is not provided. ## Mounting and integration — DIN-rail footprint Tightening torque is 2.5 to 3 N·m for screw-type terminals. The breaker is sealable and halogen-free, silicon-free — relevant for environments sensitive to outgassing (e.g., clean rooms, medical equipment). ## Lifecycle and sourcing — active production, documented compliance Compliance documentation for this SENTRON series includes a declaration of conformity to EN 60898, CE marking, and the manufacturer's RoHS and REACH statements. The 7.5 kA rating is certified per EN 60898; overvoltage category 3 and pollution degree 2 are typical for fixed-installation MCBs. No UL or CSA listing is cited in the evidence — confirm with your local Siemens representative if a UL 489 version is required for North American installations.","metaTitle":"Siemens 5SL6440-6RC MCB, 40 A, 4-pole, B-curve, 7.5 kA","metaDescription":"Siemens SENTRON 5SL6440-6RC miniature circuit breaker, 40 A, 4-pole, B characteristic, 7.5 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":["4-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76 mm","Solid":"0.75 ... 25 mm²","Width":"72 mm","title":"5SL6440-6RC","Height":"90 mm","Sealable":"Yes","Stranded":"0.75 ... 25 mm²","Rated Value":"50 Hz","description":"MCB 40 A 4-pole B characteristic 7.5 kA","Halogen-Free":"Yes","Silicon-Free":"Yes","Wertebereich":"-25 ... +45 °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":"5SL6","Suitability for operation":"Residential buildings/infrastructure","Current / at AC / rated value":"40 A","Tripping characteristic class":"B","at DC / rated value / maximum":"60 V","acc. to EN 60898 / rated value":"7.5 kA","Product feature / Touch protection":"Yes","Supply voltage / at AC / rated value":"415 V","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","with single-phase operation / at AC / rated value":"250 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/0d39958bdb01b3b38e97409b940d9225.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=96938&mlfb=5SL6440-6RC"},"ai":{"faq":[{"question":"What conductor sizes does 5SL6440-6RC accept?","answer":"The terminals accept solid and stranded conductors from 0.75 mm² up to 25 mm². Tightening torque is 2.5 to 3 N·m for screw-type terminals."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SL6440-6RC","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/5SL6440-6RC 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}}