{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9KF71420BQ","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9KF71420BQ","canonicalUrl":"https://aoctrl.com/schneider/A9KF71420BQ","factsUrl":"https://aoctrl.com/api/mcp/products/A9KF71420BQ","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 K60, 4P miniature circuit breaker, 20 A rated current, C-curve, 10 kA Icn at 415 V AC, DIN-rail mount, IP20.","salesMarkdown":"The Schneider Electric A9KF71420BQ is an Acti9 K60 miniature circuit breaker — a 4-pole, 20 A thermal-magnetic MCB with a C-curve trip characteristic. It breaks 10,000 A Icn at 415 V AC, 50/60 Hz, per EN/IEC 60898-1, which is the standard governing residential and light commercial overcurrent protection. The C-curve (magnetic trip at 5 to 10 x In) suits it for mixed loads where moderate inrush — like small motors, fluorescent banks, or transformers — is present but not extreme. The 20,000-cycle electrical and mechanical endurance aligns with the duty cycle of a typical sub-distribution board, not a switch-disconnector cycled daily. IP20 finger-safe terminals keep it inside a panel; this is not a standalone outdoor breaker. The Acti9 K60 series is Schneider's current-generation compact MCB range, so the A9KF71420BQ carries full manufacturer support and compliance documentation. Standards compliance includes EN/IEC 60898-1, pollution degree 2, overvoltage category II, and tropicalisation class 2 per IEC 60068-1 — meaning it handles 95% relative humidity at 55 °C without derating. ## Integration notes The toggle control is fixed-mount only — no rotary handle option on this variant. Earth-leakage protection is not integrated; if you need that, it's a separate RCBO or add-on Vigi module in the Acti9 range. Operating altitude is rated to 2000 m without derating. Above that, the dielectric withstand and cooling drop off — consult the thermal curve if your panel sits at elevation. The 70 mm depth is standard for this pole count; it leaves enough finger space behind a 100 mm deep enclosure.","metaTitle":"Schneider Electric A9KF71420BQ Acti9 K60 MCB, 20A 4P C-Curve","metaDescription":"Schneider Electric A9KF71420BQ Acti9 K60 miniature circuit breaker. 20 A, 4-pole, C-curve, 10 kA breaking capacity at 415 V AC. Active production, available to order. Quoted on req","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"70 mm","Range":"Acti9","Width":"72 mm","Colour":"White","Height":"81 mm","Standards":"EN/IEC 60898-1","Curve code":"C","9 Mm Pitches":"8","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 3","Breaking capacity":"10000 A Icn at 415 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"K60H","Network frequency":"50/60 Hz","Poles description":"4P","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":"20 A","Overvoltage category":"II","Trip unit technology":"Thermal-magnetic","Electrical durability":"20000 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":"5...10 x In","Earth-leakage protection":"Without","Number of protected poles":"4","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 - 415 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/A9KF71420BQ/acti-9-k60h-4p-20-a-c-curve-10-ka-set-of-3/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9KF71420BQ/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the A9KF71420BQ and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing — it is not stocked on a retail shelf but is readily accessible through the supply channel."},{"question":"What does the C-curve mean on this MCB?","answer":"The C-curve means the magnetic trip fires between 5 and 10 times the rated current (100 to 200 A for this 20 A breaker). That range covers moderate inrush from small motors, transformers, and capacitor banks without nuisance tripping, while still clearing hard faults fast enough for branch-circuit protection."},{"question":"What is the closest alternative to the A9KF71420BQ in the Acti9 family?","answer":"Within the Acti9 K60 series, the closest sibling is the 4-pole, C-curve variant with a different current rating — for example, the A9KF71425BQ (25 A) or A9KF71416BQ (16 A). They share the same physical footprint, DIN pitch, breaking capacity, and terminal specs. The only difference is the thermal trip calibration. No pin-compatible alternative exists outside the Acti9 K60 range without re-checking the panel's short-circuit rating and curve coordination."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9KF71420BQ","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/A9KF71420BQ 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}}