{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9P54740","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9P54740","canonicalUrl":"https://aoctrl.com/schneider/A9P54740","factsUrl":"https://aoctrl.com/api/mcp/products/A9P54740","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iC40N, A9P54740, miniature circuit breaker, 40 A, C-curve, 3P+N, 10 kA Icu at 400 V AC, clip-on DIN rail.","salesMarkdown":"## Rated current and breaking capacity The Schneider Electric A9P54740 Acti9 iC40N is a 40 A miniature circuit breaker in a 3P+N configuration — three protected poles plus a switched neutral on the left. Its C-curve (magnetic trip 5–10 x In) suits general-purpose distribution circuits with moderate inrush, such as lighting banks, small motor groups, or mixed resistive-inductive loads. The breaking capacity is dual-rated: 10 kA Icu at 400 V AC per EN/IEC 60947-2 for industrial panel duty, and 6000 A Icn at 400 V AC per EN/IEC 60898-1 for domestic or commercial final circuits. This breaker carries dual certification to EN/IEC 60898-1 (the household MCB standard) and EN/IEC 60947-2 (the industrial circuit-breaker standard). That dual rating is the key differentiator from a standard domestic MCB: the 60947-2 rating gives you a higher Icu (10 kA) and a pollution degree 3 classification, meaning it's certified for use in industrial enclosures where conductive dust or humidity is present. Limitation class 3 per 60898-1 means it limits let-through energy effectively, reducing stress on downstream equipment during a fault. Quality marks from OVE, IMQ, and AENOR confirm acceptance in Austrian, Italian, and Spanish markets respectively. Width is 54 mm (6 x 9 mm pitches), height 85 mm, depth 74 mm — occupies the same footprint as a standard 3P+N MCB in the Acti9 range. Tunnel terminals accept 1–16 mm² rigid or 1–10 mm² flexible cable; tightening torque 2 N.m. Wire strip length 14 mm. Separate earth-leakage block can be added downstream if required.","metaTitle":"Schneider Electric A9P54740 Acti9 iC40N MCB, 40 A C-Curve 3P","metaDescription":"Schneider Electric A9P54740 Acti9 iC40N miniature circuit breaker, 40 A rated current, C-curve, 3P+N, breaking capacity 10 kA Icu at 400 V AC. Certified to EN/IEC 60898-1 and EN/IE","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"74 mm","Range":"Acti9","Width":"54 mm","Colour":"White","Height":"85 mm","Standards":"EN/IEC 60898-1 EN/IEC 60947-2","Curve code":"C","9 Mm Pitches":"6","Control type":"Toggle","Network type":"AC","Product name":"Acti9 iC40","Mounting mode":"Clip-on","Quality labels":"OVE IMQ AENOR","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"ON/OFF indication Trip indicator","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"3 conforming to EN/IEC 60947-2","Breaking capacity":"10 kA Icu at 400 V AC 50/60 Hz conforming to EN/IEC 60947-2 6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"iC40N","Network frequency":"50/60 Hz","Poles description":"3P + N","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m top or bottom","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"40 A","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 terminals top or bottom 1...10 mm² flexible Tunnel type terminals top or bottom 1...16 mm² rigid","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Magnetic tripping limit":"5...10 x In conforming to EN/IEC 60898-1 8 x In +/- 20 % conforming to EN/IEC 60947-2","Earth-leakage protection":"Separate block","Number of protected poles":"3","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Contact position indicator":"Yes","Locking options description":"Padlocking device","[Ui] rated insulation voltage":"440 V AC 50/60 Hz conforming to EN/IEC 60947-2","[Ue] rated operational voltage":"400 V AC 50/60 Hz","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"6000 A 100 % x Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1 5 kA 50 % x Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60947-2","[Uimp] rated impulse withstand voltage":"4 kV conforming to EN/IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$144.07","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/il/en/product/A9P54740/miniature-circuitbreaker-acti9-ic40n-3p+n-40-a-c-curve-6000-a-iec-608981-10-ka-iec-609472/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9P54740/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of A9P54740?","answer":"10 kA Icu at 400 V AC per EN/IEC 60947-2, and 6000 A Icn at 400 V AC per EN/IEC 60898-1."},{"question":"What standards does A9P54740 comply with?","answer":"Certified to EN/IEC 60898-1 and EN/IEC 60947-2, with quality marks from OVE, IMQ, and AENOR."},{"question":"Where can I buy A9P54740 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. 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/A9P54740","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/A9P54740 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}}