{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9KF21216BQ","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9KF21216BQ","canonicalUrl":"https://aoctrl.com/schneider/A9KF21216BQ","factsUrl":"https://aoctrl.com/api/mcp/products/A9KF21216BQ","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 K60 series, A9KF21216BQ, miniature circuit breaker, 2-pole, B-curve, 16 A rated current, 10 kA breaking capacity at 415 V AC, DIN rail mount.","salesMarkdown":"## What this MCB does on the panel The Schneider Electric A9KF21216BQ is a 2-pole miniature circuit breaker from the Acti9 K60 family, rated 16 A with a B-curve trip characteristic (magnetic tripping between 3 and 5 times In). It protects final circuits against overload and short-circuit in AC distribution boards, with a breaking capacity of 10 kA Icn at 415 V AC 50/60 Hz, certified to EN/IEC 60898-1. The 36 mm width (4 x 9 mm pitches) snaps onto a DIN rail, and the tunnel terminals accept up to 25 mm² rigid or 16 mm² flexible cable — sized for the incoming feed on a lighting or socket-outlet subcircuit. ## B-curve selectivity and coordination The B-curve (3–5 x In) means the magnetic trip initiates at 48–80 A instantaneous. That is deliberately higher than a C-curve's 5–10 x In, so this breaker coordinates better with upstream devices on a residential or light-commercial panel where downstream cable runs are short and inrush from incandescent or resistive loads is low. Fixed DIN-rail mount, 36 mm wide (4 module pitches). The toggle control gives clear visual indication of the contact position.","metaTitle":"Schneider A9KF21216BQ Acti9 K60 MCB, B-Curve 16A 2P 10kA","metaDescription":"Schneider Electric A9KF21216BQ Acti9 K60 miniature circuit breaker, 16A rated, 2-pole, B-curve, 10kA breaking capacity at 415V AC. EN/IEC 60898-1. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"70 mm","Range":"Acti9","Width":"36 mm","Colour":"White","Height":"81 mm","Standards":"EN/IEC 60898-1","Curve code":"B","9 Mm Pitches":"4","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 6","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":"2P","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":"16 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":"3...5 x In","Earth-leakage protection":"Without","Number of protected poles":"2","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/A9KF21216BQ/acti-9-k60h-2p-16-a-b-curve-10-ka-set-of-6/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9KF21216BQ/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of A9KF21216BQ?","answer":"The breaking capacity is 10,000 A Icn at 415 V AC 50/60 Hz, certified to EN/IEC 60898-1."},{"question":"Where can I buy A9KF21216BQ and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote."},{"question":"What is the closest alternative to A9KF21216BQ in the Acti9 range?","answer":"Within the Acti9 K60 series, the closest sibling is the same 2-pole B-curve 16 A MCB with a different order code for the K60H variant (device short name K60H). The functional ratings are identical; the difference is in the commercial reference for logistics tracking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9KF21216BQ","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/A9KF21216BQ 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}}