{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9K23440","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9K23440","canonicalUrl":"https://aoctrl.com/schneider/A9K23440","factsUrl":"https://aoctrl.com/api/mcp/products/A9K23440","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iK60N, A9K23440, miniature circuit breaker, 4P, B-curve, 40 A at 30 °C, 6 kA Icn at 400 V AC, clip-on DIN rail.","salesMarkdown":"The A9K23440 is a 4-pole miniature circuit breaker from the Schneider Electric Acti9 iK60N family, rated 40 A at 30 °C with a B-curve (magnetic trip 3–5 × In). The limitation class 3 rating (also per EN/IEC 60898-1) indicates it lets through limited energy during a fault, which helps with downstream equipment protection and selectivity coordination. The B-curve is the key selection parameter here: it trips magnetically between 3 and 5 times the rated current (120–200 A for this 40 A unit). That makes it the correct choice for resistive or general-purpose loads with low inrush — lighting circuits, socket outlets, small distribution feeders — where a C-curve would delay too long on a hard fault. If your BOM line calls for motor or transformer protection with higher inrush, a C- or D-curve sibling would be the better fit. The 72 mm width (8 × 9 mm pitches) and 85 mm height fit standard distribution board cutouts. Tunnel-type terminals accept up to 35 mm² rigid or 25 mm² flexible cable; strip length 14 mm, tighten to 3.5 N·m.","metaTitle":"Schneider Electric A9K23440 Acti9 iK60N MCB, 4P B-curve 40 A","metaDescription":"Schneider Electric A9K23440 Acti9 iK60N miniature circuit breaker, 4-pole, B-curve, 40 A rated, 6 kA breaking capacity at 400 V AC. EN/IEC 60898-1. Current lifecycle. Sourced to or","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"78.5 mm","Range":"Acti9","Width":"72 mm","Colour":"White","Height":"85 mm","Standards":"EN/IEC 60898-1","Curve code":"B","9 Mm Pitches":"8","Control type":"Toggle","Network type":"AC","Product name":"Acti9 iK60","Mounting mode":"Clip-on","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"ON/OFF indication","Mounting support":"DIN rail","Pollution degree":"2 conforming to EN/IEC 60898-1","Breaking capacity":"6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"iK60N","Network frequency":"50/60 Hz","Poles description":"4P","Tightening torque":"3.5 N.m top or bottom","Device application":"Distribution","[In] rated current":"40 A at 30 °C","Overvoltage category":"III","Trip unit technology":"Thermal-magnetic","Electrical durability":"10000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Tunnel type terminal (top or bottom) 1...35 mm² rigid Tunnel type terminal (top or bottom) 1...25 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"3...5 x In","Earth-leakage protection":"Without","Number of protected poles":"4","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60898-1","Contact position indicator":"No","Locking options description":"Padlocking device","[Ui] rated insulation voltage":"440 V AC 50/60 Hz conforming to EN/IEC 60898-1","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-25...60 °C","[Ics] rated service breaking capacity":"6000 A 100 % conforming to EN/IEC 60898-1 - 400 V AC 50/60 Hz","[Uimp] rated impulse withstand voltage":"4 kV conforming to EN/IEC 60898-1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/in/en/product/A9K23440/miniature-circuit-breaker-ik60n-4p-40-a-b-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9K23440/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of A9K23440?","answer":"The A9K23440 has a breaking capacity of 6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1."},{"question":"What is the rated current and curve of A9K23440?","answer":"The A9K23440 is rated 40 A at 30 °C with a B-curve, meaning magnetic tripping occurs between 3 and 5 times the rated current (120–200 A)."},{"question":"Where can I buy A9K23440?","answer":"The A9K23440 is sourced and quoted to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time."},{"question":"What compliance standards does A9K23440 meet?","answer":"The A9K23440 conforms to EN/IEC 60898-1, with pollution degree 2 and overvoltage category III. It is suitable for isolation per the same standard."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9K23440","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/A9K23440 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}}