{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N21363","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N21363","canonicalUrl":"https://aoctrl.com/schneider/A9N21363","factsUrl":"https://aoctrl.com/api/mcp/products/A9N21363","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Prodis DT40N MCB, 1P+N, C-curve, 4 A, 6 kA Icn / 10 kA Icu, clip-on DIN rail, white.","salesMarkdown":"The Schneider Electric A9N21363 is a Prodis DT40N miniature circuit breaker with 1 protected pole plus switched neutral, rated 4 A with a C-curve trip characteristic (magnetic tripping between 5 and 10 times In). Rated for AC distribution at 50 Hz, it carries a dual-standard breaking capacity: 6 kA Icn at 230 V AC per EN/IEC 60898-1 for domestic-type installation coordination, and 10 kA Icu at 230…240 V AC per IEC 60947-2 for industrial panel duty. Pollution degree 3 (IEC 60947-2) and overvoltage category IV suit it for main-distribution positions in enclosures where conductive contamination is possible and the breaker sees direct utility connection. ## Terminals, environment, and lifecycle Tunnel-type terminals accept flexible cable from 0.33 to 10 mm² and rigid from 0.75 to 16 mm², with a 2 N·m tightening torque and 13 mm strip length. The breaker is rated IP20 (finger-safe terminals), tropicalised to class 2 per IEC 60068-1, and operates at altitudes up to 2000 m and 95 % relative humidity at 55 °C. ## Sourcing and documentation The part carries NF quality label and complies with EN/IEC 60898-1 and EN/IEC 60947-2. Separate earth-leakage protection block can be added if needed.","metaTitle":"Schneider Electric A9N21363 DT40N MCB, 1P+N, C-curve, 4 A, 6","metaDescription":"Schneider Electric A9N21363 DT40N MCB, 1P+N, C-curve, 4 A, 6 kA Icn / 10 kA Icu. Dual-standard 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":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"78 mm","Range":"Prodis","Width":"18 mm","Colour":"White","Height":"81 mm","Standards":"EN/IEC 60898-1 EN/IEC 60947-2","Curve code":"C","9 Mm Pitches":"2","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 230 V AC 50 Hz conforming to EN/IEC 60898-1 10 kA Icu at 230...240 V AC 50 Hz conforming to IEC 60947-2","Device short name":"DT40N","Network frequency":"50 Hz","Poles description":"1P + N","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"4 A","Overvoltage category":"IV","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":"5...10 x In","Earth-leakage protection":"Separate block","Number of protected poles":"1","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","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"7.5 kA 75 % x Icn at 230 V AC 50 Hz conforming to IEC 60947-2 6000 A 100 % x Icn at 230 V AC 50 Hz conforming to EN/IEC 60898-1","[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/83569c550cbb904c05287bc9e5f070e1.pdf","sourceUrl":"https://www.se.com/uk/en/product/A9N21363/dt40-circuit-breaker-dt40n-1p-+-n-4a-c-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N21363/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for A9N21363?","answer":"Submit an RFQ through this listing; pricing and availability are confirmed at quote time."},{"question":"What is the breaking capacity of A9N21363?","answer":"6 kA Icn at 230 V AC per EN/IEC 60898-1 and 10 kA Icu at 230…240 V AC per IEC 60947-2."},{"question":"What terminals does A9N21363 accept?","answer":"Tunnel-type terminals: flexible 0.33…10 mm², rigid 0.75…16 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N21363","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/A9N21363 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}}