{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9K14120","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9K14120","canonicalUrl":"https://aoctrl.com/schneider/A9K14120","factsUrl":"https://aoctrl.com/api/mcp/products/A9K14120","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iK60N, miniature circuit-breaker, A9K14120, 1P, 20 A, C-curve, 4500 A Icn at 230 V AC, DIN-rail clip-on.","salesMarkdown":"The Schneider Electric A9K14120 is a 1-pole miniature circuit breaker from the Acti9 iK60N range, rated 20 A at 30 °C with a C-curve trip characteristic (magnetic trip between 5 and 10 times In). It clips onto a standard DIN rail — two 9 mm pitches wide, so it takes up 18 mm of panel space. The breaking capacity is 4500 A Icn at 230 V AC, 50/60 Hz, certified to EN/IEC 60898-1. The C-curve means the magnetic trip fires between 5 and 10 times the rated current — so for this 20 A breaker, instantaneous trip happens between 100 A and 200 A. If you were protecting a motor or a transformer with a higher starting surge, you'd typically reach for a D-curve instead. The thermal-magnetic trip unit handles the overload side (the thermal bimetal) and the short-circuit side (the magnetic coil) in one compact package. Rated insulation voltage is 440 V AC, and the overvoltage category is III, which covers fixed installations inside a building distribution board. The part is rated for isolation — it has a positive ON/OFF indication on the toggle, so you can visibly confirm the circuit is open before working downstream. ## Termination and wiring notes Strip length is 14 mm.","metaTitle":"Schneider Electric A9K14120 Acti9 iK60N MCB, 20 A, 1P, C-Cur","metaDescription":"Schneider Electric A9K14120 Acti9 iK60N miniature circuit breaker, 20 A rated, 1-pole, C-curve, 4500 A breaking capacity at 230 V AC. EN/IEC 60898-1. Current lifecycle. Sourced to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"78.5 mm","Range":"Acti9","Width":"18 mm","Colour":"White","Height":"85 mm","Standards":"EN/IEC 60898-1","Curve code":"C","9 Mm Pitches":"2","Control type":"Toggle","Network type":"AC","Product name":"Acti9 iK60","Mounting mode":"Clip-on","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"ON/OFF indication","Mounting support":"DIN rail","Pollution degree":"2 conforming to EN/IEC 60898-1","Breaking capacity":"4500 A Icn at 230 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"iK60N","Network frequency":"50/60 Hz","Poles description":"1P","Tightening torque":"2 N.m top or bottom","Device application":"Distribution","[In] rated current":"20 A at 30 °C","Overvoltage category":"III","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 terminal (top or bottom) 1...25 mm² rigid","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"5...10 x In","Earth-leakage protection":"Without","Number of protected poles":"1","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60898-1","Locking options description":"Padlocking device","[Ui] rated insulation voltage":"440 V AC 50/60 Hz conforming to EN/IEC 60898-1","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-25...60 °C","[Ics] rated service breaking capacity":"4500 A 100 % conforming to EN/IEC 60898-1 - 230 V AC 50/60 Hz","[Uimp] rated impulse withstand voltage":"4 kV conforming to EN/IEC 60898-1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d8ad0102ae4ef480a10d35d6ddd70aeb.pdf","sourceUrl":"https://www.se.com/vn/en/product/A9K14120/ik60a-miniature-circuit-breaker-1p-20-a-c-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9K14120/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of A9K14120?","answer":"4500 A Icn at 230 V AC, 50/60 Hz, conforming to EN/IEC 60898-1. That's the maximum prospective fault current it can safely interrupt at that voltage."},{"question":"What is the depth of A9K14120?","answer":"78.5 mm. That's the body depth from the front of the DIN rail to the back of the toggle — standard for a single-module Acti9 iK60N MCB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9K14120","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/A9K14120 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}}