{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N18352","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N18352","canonicalUrl":"https://aoctrl.com/schneider/A9N18352","factsUrl":"https://aoctrl.com/api/mcp/products/A9N18352","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 C120N miniature circuit breaker, A9N18352, 63 A rated at 30 °C, 4 poles, B curve, 10 kA Icn at 400 V AC, thermal-magnetic trip, clip-on 35 mm DIN rail.","salesMarkdown":"The Schneider Electric A9N18352 is a 63 A, 4-pole miniature circuit breaker from the Acti9 C120N range, with a B curve (magnetic trip 3–5 × In) and thermal-magnetic trip unit. It clips onto a 35 mm symmetrical DIN rail, so it integrates straight into a standard distribution board or panel enclosure — no special adapter needed. Rated 63 A at 30 °C, it handles typical distribution loads in commercial or light industrial panels: lighting circuits, small motor feeders, or general-purpose branch protection. The B curve is the right choice for resistive or slightly inductive loads where inrush stays modest — it trips magnetically between 3 and 5 times the rated current, so it won't nuisance-trip on a lighting bank but clears a hard short fast. ## Breaking capacity and dual standard certification This breaker carries dual certification to EN/IEC 60898-1 and EN/IEC 60947-2 — that means it meets both the household/similar-installation standard and the industrial standard for circuit-breakers. The practical difference: under 60898-1 it's rated 10 kA Icn at 400 V AC (its rated short-circuit capacity for the domestic-duty curve), while under 60947-2 it delivers 6 kA Icu at 440 V AC, 20 kA Icu at 220–240 V AC, and 10 kA Icu at 380–415 V AC. For DC circuits it's rated 10 kA Icu at ≤ 500 V DC. That gives you selectivity headroom in a mixed panel — the higher 20 kA figure at 240 V covers the common North American line-to-neutral fault level. The lifecycle stage is listed as current — this is an active, in-production part from Schneider Electric's Acti9 family. No end-of-life notice, no last-time-buy window. ## Mounting and wiring notes Tunnel-type terminals accept 1–50 mm² rigid or 1.5–35 mm² flexible; strip length is 15 mm, tightening torque 3.5 N·m. ## Environmental and endurance ratings Electrical durability is 10,000 cycles per IEC 60947-2; mechanical durability 20,000 cycles. Operating altitude up to 2,000 m without derating; overvoltage category IV (suitable for main incoming supply panels).","metaTitle":"Schneider Electric A9N18352 Acti9 C120N MCB, 63 A, 4P, B Cur","metaDescription":"Schneider Electric A9N18352 Acti9 C120N miniature circuit breaker, 63 A at 30 °C, 4 poles, B curve, 10 kA Icn at 400 V AC. Dual certified to EN/IEC 60898-1 and 60947-2. Current pro","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"73 mm","Range":"Acti9","Width":"108 mm","title":"A9N18352","Colour":"White","Height":"81 mm","Standards":"EN/IEC 60898-1 EN/IEC 60947-2","Curve code":"B","description":"Miniature circuit breaker (MCB), Acti9 C120N, 4P, 63A, B curve, 10000A (IEC/EN 60898-1), 10kA (IEC/EN 60947-2)","9 Mm Pitches":"12","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":"1 conforming to EN/IEC 60947-2","Local signalling":"ON/OFF indication","Mounting support":"35 mm symmetrical DIN rail","Pollution degree":"3 conforming to IEC 60947-2","Breaking capacity":"10000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1 6 kA Icu at 440 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 10 kA Icu at <= 500 V DC conforming to EN/IEC 60947-2","Device short name":"C120N","Network frequency":"50/60 Hz","Poles description":"4P","Relative humidity":"95 % at 55 °C","Tightening torque":"3.5 N.m","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"63 A at 30 °C","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Electrical durability":"10000 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":"3...5 x In","Earth-leakage protection":"Separate block","Number of protected poles":"4","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...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"7500 A 75 % conforming to EN/IEC 60898-1 - 400 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 15 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 10 kA 100 % conforming to EN/IEC 60947-2 - <= 500 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/36edf197d62d99724b61a1471beda7c6.pdf","sourceUrl":"https://www.se.com/be/en/product/A9N18352/miniature-circuit-breaker-mcb-acti9-c120n-4p-63a-b-curve-10000a-iec-en-608981-10ka-iec-en-609472/"},"ai":{"faq":[{"question":"What is A9N18352's listed depth (73 mm) on this component line?","answer":"The listed depth is 73 mm, with a width of 108 mm (12 module pitches) and height of 81 mm."},{"question":"What is A9N18352's listed range (Acti9) on this component line?","answer":"It belongs to the Acti9 range, specifically the Acti9 C120 series, with device short name C120N."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N18352","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/A9N18352 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}