{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N21414","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N21414","canonicalUrl":"https://aoctrl.com/schneider/A9N21414","factsUrl":"https://aoctrl.com/api/mcp/products/A9N21414","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Prodis DT40N miniature circuit-breaker, A9N21414, 6 A rated current, D tripping curve, 3P+N poles, 6 kA Icn / 10 kA Icu breaking capacity, clip-on DIN rail mount.","salesMarkdown":"At 6 A rated current, it protects a branch circuit up to that continuous load. Breaking capacity is specified as 6000 A Icn at 400 V AC per EN/IEC 60898-1 and 10 kA Icu at 400–415 V AC per IEC 60947-2. The higher Icu figure (10 kA) is the ultimate short-circuit capacity the breaker can interrupt once and remain functional; the Icn (6 kA) is the service capacity for repeated operation. For a distribution board with a prospective fault current above 6 kA, the 10 kA Icu rating provides the necessary headroom. Thermal-magnetic trip technology combines a bimetal strip for overload protection and a solenoid for short-circuit protection. The 54 mm width (6 × 9 mm pitches) fits standard DIN-rail spacing in distribution boards. Tunnel-type terminals accept 0.33–10 mm² flexible or 0.75–16 mm² rigid conductors upstream and downstream; tightening torque is 2 N·m. Wire stripping length is 13 mm. IP20 finger protection per IEC 60529 — suitable for enclosed distribution boards where the front face is accessible but live parts are behind the panel door.","metaTitle":"A9N21414 DT40N MCB, 6 A, D Curve, 3P+N, Prodis","metaDescription":"Schneider Electric A9N21414 DT40N miniature circuit-breaker, 6 A rated, D curve, 3P+N, 6 kA Icn / 10 kA Icu, EN/IEC 60898-1 & 60947-2. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"78 mm","Range":"Prodis","Width":"54 mm","Colour":"White","Height":"81 mm","Standards":"EN/IEC 60898-1 EN/IEC 60947-2","Curve code":"D","9 Mm Pitches":"6","Control type":"Toggle","Network type":"AC","Product name":"DT40","Mounting mode":"Clip-on","Quality labels":"NF","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"ON/OFF indication","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60947-2","Range of product":"ProDis","Breaking capacity":"6000 A Icn at 400 V AC 50 Hz conforming to EN/IEC 60898-1 10 kA Icu at 400...415 V AC 50 Hz conforming to IEC 60947-2","Device short name":"DT40N","Network frequency":"50 Hz","Poles description":"3P + N","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"6 A","Trip unit technology":"Thermal-magnetic","Electrical durability":"20000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"13 mm","Connections - terminals":"Tunnel type terminals downstream 0.33...10 mm² flexible Tunnel type terminals downstream 0.75...16 mm² rigid Tunnel type terminals upstream 0.33...10 mm² flexible Tunnel type terminals upstream 0.75...16 mm² rigid","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"10...14 x In","Earth-leakage protection":"Separate block","Number of protected poles":"3","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes","Contact position indicator":"Yes","Locking options description":"Padlocking device","[Ui] rated insulation voltage":"400 V AC 50 Hz","[Ue] rated operational voltage":"230 V AC 50 Hz between phase and neutral 400 V AC 50 Hz between phases","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"6000 A 100 % x Icn at 400 V AC 50 Hz conforming to EN/IEC 60898-1 7.5 kA 75 % x Icu at 400 V AC 50 Hz conforming to IEC 60947-2","[Uimp] rated impulse withstand voltage":"4 kV conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bd6beb2ba94f0c37fbf8a73ab14de5c9.pdf","sourceUrl":"https://www.se.com/uk/en/product/A9N21414/dt40-circuit-breaker-dt40n-3p-+-n-6a-d-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N21414/alternatives.json"},"ai":{"faq":[{"question":"What is A9N21414's listed range (Prodis) on this component line?","answer":"The range is Prodis (also written ProDis), which is Schneider Electric's family of miniature circuit-breakers and distribution accessories."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N21414","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/schneider/A9N21414 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}}