{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9F08440","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9F08440","canonicalUrl":"https://aoctrl.com/schneider/A9F08440","factsUrl":"https://aoctrl.com/api/mcp/products/A9F08440","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iC60H, miniature circuit breaker, 40 A, 4P, D curve, 42 kA Icu at 12-133 V AC, DIN rail mount.","salesMarkdown":"The Schneider Electric A9F08440 is an Acti9 iC60H miniature circuit breaker rated at 40 A with a D tripping curve, four protected poles, and a breaking capacity of 42 kA Icu at 12–133 V AC (50/60 Hz) per EN/IEC 60947-2. The D curve (magnetic trip at 12 x In ±20 %) means this breaker tolerates high inrush currents — typical for motor loads, transformers, or welding equipment — without nuisance tripping. The 40 A continuous rating and 4-pole configuration suit it for three-phase distribution with a switched neutral, common in European panel builds. Breaking capacity is derated by voltage: 42 kA at 12–133 V AC, 30 kA at 220–240 V, 15 kA at 380–415 V, and 10 kA at 440 V. The 10 kA Icn at 400 V per EN/IEC 60898-1 is the standard for domestic/commercial distribution; the higher Icu figures per 60947-2 cover industrial fault levels. For a 40 A feeder in a 400 V panel with a prospective fault current under 10 kA, this breaker is a clean fit. Thermal-magnetic trip technology with a separate earth-leakage block option means the A9F08440 handles overload and short-circuit protection on its own; add a Vigi iC60 module downstream if residual-current protection is needed. The isolation suitability mark (per both 60947-2 and 60898-1) confirms it can be used as a disconnecting means. ## Deployment context The 78.5 mm depth fits flush in most 100 mm deep enclosures.","metaTitle":"Schneider Electric A9F08440 Acti9 iC60H MCB, 40 A, 4P, D Cur","metaDescription":"Schneider Electric A9F08440 Acti9 iC60H miniature circuit breaker, 40 A, 4 poles, D curve, 42 kA breaking capacity. Sourced to order. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"78.5 mm","Range":"Acti9","Width":"72 mm","Colour":"White","Height":"91 mm","Standards":"EN/IEC 60947-2 EN/IEC 60898-1","Curve code":"D","9 Mm Pitches":"8","Control type":"Toggle","Network type":"AC DC","Product name":"Acti9 iC60","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"Trip indicator","Mounting support":"DIN rail","Pollution degree":"3 conforming to EN/IEC 60947-2","Breaking capacity":"42 kA Icu at 12...133 V AC 50/60 Hz conforming to EN/IEC 60947-2 30 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 15 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 15 kA Icu at 10000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"iC60H","Network frequency":"50/60 Hz","Poles description":"4P","Relative humidity":"95 % at 55 °C","Tightening torque":"3.5 N.m top or bottom","Device application":"Distribution","[In] rated current":"40 A","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to EN/IEC 60947-2","Electrical durability":"10000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Double terminal (top or bottom) 1...35 mm² rigid Double terminal (top or bottom) 1...25 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"12 x In +/- 20 %","Earth-leakage protection":"Separate block","Number of protected poles":"4","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2 Yes conforming to EN/IEC 60898-1","Contact position indicator":"Yes","[Ui] rated insulation voltage":"500 V AC 50/60 Hz conforming to EN/IEC 60947-2","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-35...70 °C","[Ics] rated service breaking capacity":"21 kA 50 % conforming to EN/IEC 60947-2 - 12...133 V AC 50/60 Hz 15 kA 50 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 7.5 kA 50 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 5 kA 50 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 15 kA 100 % conforming to EN/IEC 60947-2 - <= 250 V DC","[Uimp] rated impulse withstand voltage":"6 kV conforming to EN/IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fd36e5e119fe6816466dbdc3bd786db6.pdf","sourceUrl":"https://www.se.com/sg/en/product/A9F08440/miniature-circuit-breaker-mcb-acti9-ic60h-4p-40a-d-curve-10000a-iec-608981-15ka-iec-609472-double-term-/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9F08440/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the A9F08440 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit a quote request; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of the A9F08440 at 400 V?","answer":"At 400 V AC, the A9F08440 carries a 10 kA Icn per EN/IEC 60898-1 and a 15 kA Icu per EN/IEC 60947-2."},{"question":"What compliance standards does the A9F08440 meet?","answer":"It is certified to EN/IEC 60947-2 and EN/IEC 60898-1, with suitability for isolation per both standards. Pollution degree 3 and overvoltage category IV are rated per 60947-2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9F08440","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/A9F08440 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}}