{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N21538","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N21538","canonicalUrl":"https://aoctrl.com/schneider/A9N21538","factsUrl":"https://aoctrl.com/api/mcp/products/A9N21538","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Clario iDPN miniature circuit-breaker, A9N21538, 20 A, Curve B, 1P+N, 4500 A breaking capacity at 230 V AC, clip-on DIN rail mount.","salesMarkdown":"The Schneider Electric A9N21538 is a Clario iDPN miniature circuit-breaker (MCB) — a 1P+N, 20 A, Curve B device rated to EN/IEC 60898-1. The thermal-magnetic trip unit handles overloads and short-circuits; Rated 20 A continuous — sized for a 4.6 kW resistive load at 230 V single-phase. Curve B (3–5 × In) is the tightest magnetic trip band — it clears a short-circuit faster than Curve C or D, but it also means it may nuisance-trip on motor or transformer inrush. Use it for general-purpose distribution, lighting, and resistive loads where you want the fastest fault clearance. 1P+N construction switches the phase and switches the neutral through the same mechanism, but the neutral pole is not overcurrent-protected — it's a switched neutral. That's fine for single-phase final circuits where the neutral is bonded at the source. Occupies one module width in a distribution board.","metaTitle":"Schneider Electric A9N21538 iDPN MCB, 20 A, Curve B, 1P+N","metaDescription":"Schneider Electric A9N21538 iDPN miniature circuit breaker, 20 A rated current, Curve B, 1P+N, 4500 A breaking capacity at 230 V AC. EN/IEC 60898-1. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["1-Pole MCB (DIN Rail)"],"specifications":{"Depth":"78 mm","Range":"Clario","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":"IDPN","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Limitation class":"3 conforming to EN/IEC 60898-1","Local signalling":"ON/OFF indication","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60947-1","Range of product":"Clario","Breaking capacity":"4500 A Icn at 230 V AC 50/60 Hz conforming to EN/IEC 60898-1","Device short name":"iDPN","Network frequency":"50/60 Hz","Poles description":"1P + N","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m","Device application":"Distribution","Operating altitude":"2000 m","[In] rated current":"20 A","Trip unit technology":"Thermal-magnetic","Electrical durability":"20000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"13 mm","Connections - terminals":"Tunnel type terminals downstream 0.33...10 mm² flexible Tunnel type terminals downstream 0.75...16 mm² rigid Tunnel type terminals upstream 0.33...10 mm² flexible Tunnel type terminals upstream 0.75...16 mm² rigid","IP degree of protection":"IP20 conforming to IEC 60529","Magnetic tripping limit":"3...5 x In","Earth-leakage protection":"Separate block","Number of protected poles":"1","Product or component type":"Miniature circuit-breaker","Suitability for isolation":"Yes","Contact position indicator":"Yes","Locking options description":"Padlocking device","[Ui] rated insulation voltage":"400 V AC 50/60 Hz conforming to IEC 60947-2","[Ue] rated operational voltage":"230 V AC 50/60 Hz between phase and neutral","Ambient air temperature for storage":"-40...70 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"4500 A 100 % x Icn at 230 V AC 50/60 Hz conforming to EN/IEC 60898-1","[Uimp] rated impulse withstand voltage":"4 kV conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/eg/en/product/A9N21538/idpn-circuit-breaker-idpn-1p-+-n-20a-b-curve/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N21538/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for A9N21538?","answer":"Submit an RFQ through this listing. The part is sourced to order; availability and current pricing are confirmed at quote time."},{"question":"What is A9N21538's listed depth (78 mm) on this component line?","answer":"The A9N21538 has a depth of 78 mm, a width of 18 mm, and a height of 81 mm."},{"question":"What compliance documentation does this brand provide for A9N21538?","answer":"The A9N21538 is certified to EN/IEC 60898-1 and IEC 60947-1 (pollution degree 3). It carries IP20 protection per IEC 60529 and tropicalisation class 2 per IEC 60068-1. RoHS/REACH compliance is standard for Schneider Electric Clario products."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N21538","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/A9N21538 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}}