{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9KF21125BQ","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9KF21125BQ","canonicalUrl":"https://aoctrl.com/schneider/A9KF21125BQ","factsUrl":"https://aoctrl.com/api/mcp/products/A9KF21125BQ","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 K60, miniature circuit breaker, 1P, 25 A, B curve, 10 kA Icn at 240 V AC, DIN rail mount, IP20.","salesMarkdown":"The Schneider Electric A9KF21125BQ is a 1-pole Acti9 K60 miniature circuit breaker (MCB) rated at 25 A with a B tripping curve. It is designed for distribution applications in residential and commercial final circuits where the load is predominantly resistive or low-inrush — lighting, socket outlets, small appliances. Its breaking capacity is 10,000 A Icn at 240 V AC, 50/60 Hz, certified to EN/IEC 60898-1. Thermal-magnetic trip unit. Certified for isolation per EN/IEC 60898-1. The fixed mounting mode and tunnel-type terminals accept 1 to 25 mm² rigid or 1 to 16 mm² flexible conductors, with a tightening torque of 2 N.m. IP20 rated (finger-safe terminals), so it is intended for installation inside a panel or enclosure that provides the outer IP rating. The tropicalisation treatment (class 2 per IEC 60068-1) means it handles warm, humid environments without corrosion issues — useful for Southeast Asia or coastal plant rooms.","metaTitle":"Schneider Electric A9KF21125BQ Acti9 K60 MCB, 25 A, B Curve,","metaDescription":"Schneider Electric A9KF21125BQ Acti9 K60 miniature circuit breaker, 25 A rated current, B curve, 10 kA breaking capacity at 240 V AC. EN/IEC 60898-1. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Range":"Acti9","Width":"18 mm","Colour":"White","Height":"81 mm","Standards":"EN/IEC 60898-1","Curve code":"B","9 Mm Pitches":"2","Control type":"Toggle","Network type":"AC","Product name":"Acti9 K60","Mounting mode":"Fixed","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"Without","Mounting support":"DIN rail","Pollution degree":"2","Quantity per set":"Set of 12","Breaking capacity":"10000 A Icn at 240 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"K60H","Network frequency":"50/60 Hz","Poles description":"1P","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m top or bottom","Device application":"Distribution","Operating altitude":"0...2000 m","[In] rated current":"25 A","Overvoltage category":"II","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 (downstream) 1...25 mm² rigid Tunnel type terminals (upstream) 1...25 mm² rigid Tunnel type terminals (downstream) 1...16 mm² flexible Tunnel type terminals (upstream) 1...16 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"3...5 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","Contact position indicator":"No","[Ui] rated insulation voltage":"500 V AC 50/60 Hz","Ambient air temperature for storage":"-25...85 °C","Ambient air temperature for operation":"-5...55 °C","[Ics] rated service breaking capacity":"7500 A 75 % conforming to EN/IEC 60898-1 - 240 V AC 50/60 Hz","[Uimp] rated impulse withstand voltage":"4 kV","Comb busbar and distribution block compatibility":"Downstream: biconnect"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/in/en/product/A9KF21125BQ/acti-9-k60h-1p-25-a-b-curve-10-ka-set-of-12/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9KF21125BQ/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of A9KF21125BQ?","answer":"10,000 A Icn at 240 V AC, 50/60 Hz, conforming to EN/IEC 60898-1. That is the standard domestic/commercial rating — sufficient for most final circuits fed by a typical distribution transformer."},{"question":"What terminals does A9KF21125BQ accept?","answer":"Tunnel-type terminals accepting 1 to 25 mm² rigid or 1 to 16 mm² flexible conductors. Tightening torque is 2 N.m, and the wire strip length is 14 mm."},{"question":"What compliance documentation is available for A9KF21125BQ?","answer":"The breaker is certified to EN/IEC 60898-1 and carries IP20 per IEC 60529. It is tropicalised per IEC 60068-1 class 2. Standard Schneider documentation (declaration of conformity, CE, UKCA) is available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9KF21125BQ","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/A9KF21125BQ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-14T23:38:47.729Z","lastPublished":"2026-09-14T23:38:47.729Z","indexable":true}}