{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9F68403","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9F68403","canonicalUrl":"https://aoctrl.com/schneider/A9F68403","factsUrl":"https://aoctrl.com/api/mcp/products/A9F68403","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iT60, A9F68403, miniature circuit breaker, 3 A, C curve, 4P, 50 kA breaking capacity at 415 V AC, DIN rail mount.","salesMarkdown":"The Schneider Electric A9F68403 is a 4-pole miniature circuit breaker from the Acti9 iT60 series, rated 3 A with a C-curve trip characteristic. Breaking capacity is the headline: 50 kA Icu at 415 V AC per EN/IEC 60947-2, and 10 kA Icn at 400 V per EN/IEC 60898-1. The dual standard (60947-2 for industrial, 60898-1 for residential/commercial) gives flexibility: it qualifies for distribution boards under 60898-1 and for industrial switchgear under 60947-2. Limitation class 3 (per 60898-1) means it limits let-through energy enough to protect downstream equipment in most fault scenarios. ## Deployment context Mounts on DIN rail (EN rail) — standard for panel builders. Width is 72 mm, which is 8 x 9 mm pitches (the standard MCB module width). The removable comb busbar is pre-installed, so daisy-chaining phases across multiple breakers in a distribution board is straightforward. Terminals accept 1–25 mm² rigid or 1–16 mm² flexible, with a tightening torque of 2 N·m.","metaTitle":"Schneider Electric A9F68403 Acti9 iT60 MCB, 3 A, C Curve, 4P","metaDescription":"Schneider Electric A9F68403 Acti9 iT60 miniature circuit breaker, 3 A rated, C curve, 4 poles, 50 kA breaking capacity at 415 V AC. Active production, sourced to order. Quoted on r","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Range":"Acti9","Width":"72 mm","Colour":"White","Standards":"EN/IEC 60947-2 EN/IEC 60898-1","Curve code":"C","9 Mm Pitches":"8","Control type":"Toggle","Network type":"AC DC","Product name":"Acti9 iT60","Mounting mode":"Removable comb busbar installed","Tropicalisation":"2 conforming to EN/IEC 60068-2-78","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":"50 kA Icu at 12...133 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 50 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 25 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":"iT60N","Network frequency":"50/60 Hz","Poles description":"4P","Relative humidity":"95 %","Tightening torque":"2 N.m top or bottom","Device application":"Distribution","Operating altitude":"0...2000 m","[In] rated current":"3 A","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to EN/IEC 60947-2","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Single terminal (top or bottom) 1...25 mm² rigid Single terminal (top or bottom) 1...16 mm² flexible","IP degree of protection":"IP20 B conforming to IEC 60529","Magnetic tripping limit":"8 x In +/- 20 %","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 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":"50 kA 100 % conforming to EN/IEC 60947-2 - 12...133 V AC 50/60 Hz 50 kA 100 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 50 kA 100 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 25 kA 100 % 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/b24ab076561f5c3ffc3010d8736cf6e7.pdf","sourceUrl":"https://www.se.com/uk/en/product/A9F68403/it60n-miniature-circuit-breaker-4p-3-a-c-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9F68403/alternatives.json"},"ai":{"faq":[{"question":"What is A9F68403's breaking capacity at 415 V?","answer":"50 kA Icu at 380...415 V AC per EN/IEC 60947-2, and 10 kA Icn at 400 V per EN/IEC 60898-1."},{"question":"What is the C curve on the A9F68403?","answer":"The C curve means magnetic tripping occurs at 8 x In ±20 %, suitable for inductive loads with moderate inrush like lighting banks or control transformers."},{"question":"Where can I buy the A9F68403?","answer":"The A9F68403 is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9F68403","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/A9F68403 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}}