{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9F03440","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9F03440","canonicalUrl":"https://aoctrl.com/schneider/A9F03440","factsUrl":"https://aoctrl.com/api/mcp/products/A9F03440","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iC60N, miniature circuit-breaker A9F03440, 4P, 40 A, B-curve, 36 kA breaking capacity, DIN rail mount.","salesMarkdown":"## What the ratings mean for your panel The Schneider Electric A9F03440 is a 40 A, 4-pole miniature circuit-breaker from the Acti9 iC60N family, built for distribution boards and sub-panels where you need a thermal-magnetic trip in a compact DIN-rail package. The B-curve (magnetic trip at 4 x In ±20%) means it clears short-circuit faults fast enough for resistive and general-purpose loads, but won't nuisance-trip on moderate inrush from small motors or capacitive supplies — a common fit for lighting, socket-outlet, and control transformer circuits. ## Panel integration notes Snaps onto standard DIN rail (35 mm). The 4-pole body takes 8 x 9 mm pitches — 72 mm wide — so plan for that footprint in your enclosure layout. Terminals accept up to 35 mm² rigid or 25 mm² flexible on double terminals top and bottom; strip 14 mm and torque to 3.5 N·m. IP20 finger-safe protection, pollution degree 3 rated, so it's fine inside a closed panel but not for washdown zones.","metaTitle":"Schneider Electric A9F03440 Acti9 iC60N MCB, 40 A, 4P, B-Cur","metaDescription":"Schneider Electric A9F03440 Acti9 iC60N miniature circuit-breaker, 40 A rated, 4-pole, B-curve, 36 kA breaking capacity. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"B","9 Mm Pitches":"8","Control type":"Toggle","Network type":"DC AC","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":"36 kA Icu at 12...133 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 6 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"IC60N","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":"4 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 60898-1 Yes conforming to EN/IEC 60947-2","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":"27 kA 75 % conforming to EN/IEC 60947-2 - 12...133 V AC 50/60 Hz 15 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 10 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/929790bc987b8fef62c1316c98858d59.pdf","sourceUrl":"https://www.se.com/sg/en/product/A9F03440/miniature-circuit-breaker-mcb-acti9-ic60n-4p-40a-b-curve-6000a-iec-608981-10ka-iec-609472-double-term-/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9F03440/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for A9F03440?","answer":"We source the A9F03440 through independent distribution and quote it to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest alternative to A9F03440 in the Acti9 family?","answer":"Within the Acti9 iC60N range, the main variant difference is the curve code (B, C, or D) and the rated current. The A9F03440 is a 40 A B-curve 4P; if you need a C-curve for motor or transformer loads, the corresponding order code would carry a 'C' in place of 'B' in the curve designation. No pin-compatible drop-in exists with different ratings — the trip unit is integral."},{"question":"What compliance documentation does Schneider provide for A9F03440?","answer":"The A9F03440 is certified to EN/IEC 60947-2 and EN/IEC 60898-1, with IP20 per IEC 60529 and tropicalisation class 2 per IEC 60068-1. Schneider Electric provides the standard declaration of conformity and CE marking; RoHS and REACH compliance documentation is available through the manufacturer's product support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9F03440","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/A9F03440 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}}