{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9F05450","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9F05450","canonicalUrl":"https://aoctrl.com/schneider/A9F05450","factsUrl":"https://aoctrl.com/api/mcp/products/A9F05450","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 iC60N, A9F05450, miniature circuit breaker, D curve, 50 A, 4 poles, 36 kA Icu at 12-133 V AC, thermal-magnetic trip, DIN rail mount, white.","salesMarkdown":"The A9F05450 is a 4-pole Acti9 iC60N miniature circuit breaker rated 50 A with a D tripping curve. The D curve means magnetic trip occurs at 12× In (600 A) ±20 %, so it handles the high inrush of motor and transformer loads without nuisance tripping — a standard choice for distribution subfeeds feeding inductive equipment. Thermal-magnetic trip technology combines a bimetal for overload protection and a solenoid for short-circuit response, so the breaker covers both sustained overcurrent and fault conditions in one unit. Breaking capacity is rated at 36 kA Icu at 12–133 V AC, 20 kA at 220–240 V, 10 kA at 380–415 V, and 6 kA at 440 V per EN/IEC 60947-2, plus 10 kA Icn at 400 V per EN/IEC 60898-1. The 72 mm width (8 × 9 mm pitches) matches the 4-pole footprint; 78.5 mm depth and 91 mm height leave room for wiring in a standard distribution enclosure. Double terminals top and bottom accept 1–35 mm² rigid or 1–25 mm² flexible cable, with a 14 mm strip length and 3.5 Nm tightening torque. The IP20 finger-safe terminals are fine for enclosed panels; no washdown rating here. A trip indicator on the toggle gives local visual status — useful for a panel walk-down. Earth-leakage protection requires a separate Vigi block; the breaker itself is thermal-magnetic only, so if RCD protection is needed, plan for the add-on module downstream.","metaTitle":"Schneider Electric A9F05450 Acti9 iC60N MCB, D Curve, 50 A,","metaDescription":"Schneider Electric A9F05450 Acti9 iC60N miniature circuit breaker, D curve, 50 A rated current, 4 poles, 36 kA breaking capacity at 12-133 V AC, DIN rail mount, EN/IEC 60947-2 and","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"78.5 mm","Range":"Acti9","Width":"72 mm","Colour":"White","Height":"91 mm","Standards":"EN/IEC 60947-2 EN/IEC 60898-1","Curve code":"D","9 Mm Pitches":"8","Control type":"Toggle","Network type":"AC DC","Product name":"Acti9 iC60","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"Trip indicator","Mounting support":"DIN rail","Pollution degree":"3 conforming to EN/IEC 60947-2","Breaking capacity":"36 kA Icu at 12...133 V AC 50/60 Hz conforming to EN/IEC 60947-2 20 kA Icu at 220...240 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2 6 kA Icu at 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 10 kA Icu at 6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"IC60N","Network frequency":"50/60 Hz","Poles description":"4P","Relative humidity":"95 % at 55 °C","Tightening torque":"3.5 N.m top or bottom","Device application":"Distribution","[In] rated current":"50 A","Overvoltage category":"IV","Trip unit technology":"Thermal-magnetic","Utilisation category":"Category A conforming to EN/IEC 60947-2","Electrical durability":"10000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"14 mm for top or bottom connection","Connections - terminals":"Double terminal (top or bottom) 1...35 mm² rigid Double terminal (top or bottom) 1...25 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"12 x In +/- 20 %","Earth-leakage protection":"Separate block","Number of protected poles":"4","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes conforming to EN/IEC 60898-1 Yes conforming to EN/IEC 60947-2","Contact position indicator":"Yes","[Ui] rated insulation voltage":"500 V AC 50/60 Hz conforming to EN/IEC 60947-2","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-35...70 °C","[Ics] rated service breaking capacity":"27 kA 75 % conforming to EN/IEC 60947-2 - 12...133 V AC 50/60 Hz 15 kA 75 % conforming to EN/IEC 60947-2 - 220...240 V AC 50/60 Hz 7.5 kA 75 % conforming to EN/IEC 60947-2 - 380...415 V AC 50/60 Hz 4.5 kA 75 % conforming to EN/IEC 60947-2 - 440 V AC 50/60 Hz 10 kA 100 % conforming to EN/IEC 60947-2 - <= 250 V DC","[Uimp] rated impulse withstand voltage":"6 kV conforming to EN/IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a214f0a20bc7a944c2dfc40aa3317703.pdf","sourceUrl":"https://www.se.com/sg/en/product/A9F05450/miniature-circuit-breaker-mcb-acti9-ic60n-4p-50a-d-curve-6000a-iec-608981-10ka-iec-609472-double-term-/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9F05450/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the A9F05450 and how is it quoted?","answer":"The A9F05450 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest alternative to the A9F05450 in the Acti9 family?","answer":"Within the Acti9 iC60N range, the closest alternative would be a different current rating or curve code — the D-curve 50 A 4P is a specific combination. For a different curve, the C-curve version (A9F05450 is D) would be the sibling; for a different current, the same 4P D-curve in a 40 A or 63 A rating. No pin-compatible drop-in exists with different poles or curve."},{"question":"What compliance documentation does Schneider provide for the A9F05450?","answer":"The A9F05450 is certified to EN/IEC 60947-2 and EN/IEC 60898-1, with tropicalisation class 2 per IEC 60068-1. Standard Schneider documentation includes the datasheet, installation instructions, and declaration of conformity covering these standards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9F05450","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/A9F05450 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}}