{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N18457","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N18457","canonicalUrl":"https://aoctrl.com/schneider/A9N18457","factsUrl":"https://aoctrl.com/api/mcp/products/A9N18457","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 C120 miniature circuit-breaker, A9N18457, 80 A, 2P, C-curve, thermal-magnetic, 15 kA Icn.","salesMarkdown":"The Schneider Electric A9N18457 is a miniature circuit-breaker from the Acti9 C120 range, rated 80 A at 30 °C with a C-curve trip characteristic (5–10 × In) and two protected poles, neutral on the left. Out here in the panel, it handles motor and distribution loads without the nuisance trips a B-curve would throw on a compressor start. Breaking capacity hits 15 kA Icn under EN/IEC 60898-1 at 400 V, and up to 30 kA Icu under EN/IEC 60947-2 at 240 V — enough for most light commercial panels. It's class 3 limitation, so let-through energy stays low during a short-circuit event. ## Mounting and wiring realities Clips onto 35 mm symmetrical DIN rail, occupies 6 module pitches (54 mm wide). Terminals accept up to 50 mm² rigid or 35 mm² flexible, tunnel type. IP20 finger-safe for the panel face, but don't spray it with washdown — that's not its job.","metaTitle":"Schneider A9N18457 Acti9 C120 MCB, 80 A 2P C-curve","metaDescription":"Active-production Acti9 C120 miniature circuit-breaker, 80 A, 2 poles, C-curve, 15 kA Icn at 400 V. Thermal-magnetic trip. EN/IEC 60898-1 & 60947-2. Source to RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"73 mm","Range":"Acti9","Width":"54 mm","Colour":"White","Height":"81 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 C120","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60947-2","Local signalling":"ON/OFF indication","Mounting support":"35 mm symmetrical DIN rail","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60947-2","Breaking capacity":"15000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1 10 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 15 kA Icu at 15 kA Icu at 380...415 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","Device short name":"C120H","Network frequency":"50/60 Hz","Poles description":"2P","Relative humidity":"95 % at 55 °C","Tightening torque":"3.5 N.m","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"80 A at 30 °C","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Electrical durability":"5000 cycles conforming to IEC 60947-2","Mechanical durability":"20000 cycles","Wire stripping length":"15 mm","Connections - terminals":"Tunnel type terminals1...50 mm² rigid Tunnel type terminals1.5...35 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"5...10 x In","Earth-leakage protection":"Separate block","Number of protected poles":"2","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to IEC 60947-2","Contact position indicator":"Yes","Locking options description":"Handle sealable with cable diameter 0.7mm in OFF or ON position","[Ui] rated insulation voltage":"500 V AC 50/60 Hz conforming to EN/IEC 60947-2","[Ue] rated operational voltage":"380...415 V AC 50/60 Hz 220...240 V AC 50/60 Hz 440 V AC 50/60 Hz 230...400 V AC 50/60 Hz","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-30...60 °C","[Ics] rated service breaking capacity":"7500 A 50 % conforming to EN/IEC 60898-1 - 400 V AC 50/60 Hz 5 kA 50 % conforming to EN/IEC 60947-2 - 440 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 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","Comb busbar and distribution block compatibility":"YES"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$152.40 – $274.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b5ea48012460152b62420acff58ea4f9.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N18457/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of the A9N18457?","answer":"It has a rated short-circuit capacity (Icn) of 15 kA at 400 V AC per EN/IEC 60898-1, and an ultimate breaking capacity (Icu) of 30 kA at 240 V AC per EN/IEC 60947-2."},{"question":"What standards does the A9N18457 comply with?","answer":"It complies with EN/IEC 60898-1 and EN/IEC 60947-2 for overcurrent protection and performance, plus pollution degree 3 and tropicalisation class 2 per IEC 60068-1."},{"question":"What arc fault/earth leakage protection does it offer?","answer":"This is a thermal-magnetic MCB only. Earth-leakage protection requires a separate Vigi block. No internal arc fault detection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N18457","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/A9N18457 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}