{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N19855","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N19855","canonicalUrl":"https://aoctrl.com/schneider/A9N19855","factsUrl":"https://aoctrl.com/api/mcp/products/A9N19855","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 C120L miniature circuit breaker, A9N19855, 4P, 100 A, D curve, 15 kA breaking capacity at 400 V AC, clip-on DIN-rail mount.","salesMarkdown":"The Schneider Electric A9N19855 is a 4-pole Acti9 C120L miniature circuit breaker rated 100 A at 30 °C with a D curve — magnetic trip kicks in at 10 to 14 times In per GB/T 10963.1, and 12 x In ±20 % per GB/T 14048.2. That D curve is your go-to for motor and transformer inrush: it holds through the starting surge and clears a hard fault. Breaking capacity is 15 kA Icn/Icu at 400 V AC 50/60 Hz, dual-rated to both EN/IEC 60898-1 and EN/IEC 60947-2. That dual standard means you can use it in a distribution board (60898-1) or an industrial panel (60947-2) without swapping parts. ## DIN-rail fit and wire-up Clip-on mount to standard DIN rail (35 mm per EN 60715). 12 module pitches at 9 mm each — that's 108 mm of rail space, so plan your enclosure fill accordingly. Tunnel terminals accept 1 to 50 mm² rigid (no ferrule) or 1.5 to 35 mm² flexible with/without ferrule.","metaTitle":"Schneider Electric A9N19855 Acti9 C120L MCB, 4P, 100A, D Cur","metaDescription":"Schneider Electric A9N19855 Acti9 C120L miniature circuit breaker, 4-pole, 100 A, D curve, 15 kA breaking capacity (IEC 60947-2). Active production, sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"73 mm","Range":"Acti9","Height":"81 mm","Standards":"GB 10963.1 EN/IEC 60898-1 GB/T 14048.2 EN/IEC 60947-2","Curve code":"D","9 Mm Pitches":"12","Control type":"Toggle","Network type":"AC","Product name":"C120","Mounting mode":"Clip-on","lifecycle_stage":"current","Local signalling":"ON/OFF indication","Mounting support":"DIN rail","Range of product":"Acti9","Breaking capacity":"15 kA Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1 15 kA Icn at 400 V AC 50/60 Hz conforming to GB/T 10963.1 15 kA Icu at 400 V AC 50/60 Hz conforming to EN/IEC 60947-2 15 kA Icu at 400 V AC 50/60 Hz conforming to GB/T 14048.2","Device short name":"C120L","Network frequency":"50/60 Hz","Poles description":"4P","Tightening torque":"Power circuit: 3.5 N.m","Device application":"Distribution","[In] rated current":"100 A at 30 °C","Trip unit technology":"Thermal-magnetic","Electrical durability":"5000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"Power circuit: 14 mm","Connections - terminals":"Tunnel type terminals top or bottom 1...50 mm² rigid without cable end Tunnel type terminals top or bottom 1.5...35 mm² flexible with or without cable end","Magnetic tripping limit":"10...14 x In conforming to GB/T 10963.1 12 x In +/- 20 % conforming to GB/T 14048.2","Number of protected poles":"4","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes","Contact position indicator":"Yes","[Ui] rated insulation voltage":"500 V AC 50/60 Hz","[Ue] rated operational voltage":"400 V","Ambient air temperature for storage":"-40...80 °C","Ambient air temperature for operation":"-30...70 °C","[Uimp] rated impulse withstand voltage":"6 kV"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/be/en/product/A9N19855/miniature-circuit-breaker-mcb-acti9-c120l-4p-100a-d-curve-10ka-iec-en-609472/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N19855/alternatives.json"},"ai":{"faq":[{"question":"What is A9N19855's listed depth (73 mm) on this component line?","answer":"The A9N19855 has a depth of 73 mm."},{"question":"What is A9N19855's listed range (Acti9) on this component line?","answer":"The A9N19855 belongs to the Acti9 range of miniature circuit breakers from Schneider Electric."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N19855","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/A9N19855 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}}