{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N21461","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N21461","canonicalUrl":"https://aoctrl.com/schneider/A9N21461","factsUrl":"https://aoctrl.com/api/mcp/products/A9N21461","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Prodis Vigi DT40 add-on residual current device, A9N21461, 3P, 25 A, 300 mA Type AC, voltage-independent, instantaneous trip, clip-on DIN rail mount.","salesMarkdown":"The Schneider Electric A9N21461 is a Vigi DT40 add-on residual current device from the Prodis range — a 3-pole, 25 A, 300 mA Type AC module that clips onto a DIN rail alongside a compatible MCB to provide earth-leakage protection for outgoing circuits. Rated 400 V AC phase-to-phase at 50 Hz, it uses voltage-independent residual current tripping technology with instantaneous response — no auxiliary supply needed, so it drops out cleanly even if the neutral is lost upstream. The IP20 finger-safe enclosure (IEC 60529) and pollution degree 3 rating make it suitable for standard distribution panelboards and enclosures where it lives behind a locked door or cover — not for wet or outdoor locations. 25 A rated current and 300 mA earth-leakage sensitivity define the load and protection envelope. Rated impulse withstand voltage of 6 kV and insulation voltage of 400 V conform to EN 61009-1, which certifies it as a combined overcurrent and residual current device for household and similar installations. The 6 kV impulse rating means it survives typical mains-borne transients without flashover. Clip-on mounting on DIN rail and screw-terminal connections for the MCB interface mean it integrates into a standard panel layout — 4 modules of 9 mm pitch, so it occupies 36 mm of DIN-rail width. Cable terminals accept 0.75…16 mm² rigid or 0.33…10 mm² flexible downstream. Operating temperature range -5…60 °C and storage range -40…60 °C with 95 % relative humidity at 55 °C and tropicalisation level 2 per IEC 60068-1 — this unit handles warm, humid panel environments typical of Southeast Asia or coastal installations without condensation protection. Compliant with EN 61009-1 and EN 61009-2-1. No UL, CSA, or UKCA mark is listed in the evidence — verify local acceptance before specifying for North American or UK projects.","metaTitle":"Schneider Electric A9N21461 Vigi DT40, 3P 25A 300mA RCBO, Ob","metaDescription":"Schneider Electric A9N21461 Vigi DT40 add-on residual current device, 3P, 25A, 300mA Type AC. Obsolete — sourced to order against RFQ. EN 61009-1, IP20.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"69 mm","Range":"Prodis","Width":"54 mm","Colour":"White","Height":"81 mm","Standards":"EN 61009-1 EN 61009-2-1","9 Mm Pitches":"4","Network type":"AC","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Local signalling":"ON/OFF indication","Mounting support":"DIN rail","Pollution degree":"3 conforming to EN 61009-1","Device short name":"Vigi DT40","Network frequency":"50 Hz","Poles description":"3P","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m","Operating altitude":"2000 m","[In] rated current":"25 A","Electrical durability":"10000 cycles","Wire stripping length":"13 mm","Connections - terminals":"Cable downstream 0.75...16 mm² rigid Cable downstream 0.33...10 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Device location in system":"Outgoer","Earth-leakage sensitivity":"300 mA","Product or component type":"Add-on residual current device","Electrical connection to mcb":"By screws","[Ui] rated insulation voltage":"400 V AC 50 Hz conforming to EN 61009-1","Earth-leakage protection class":"Type AC","[Ue] rated operational voltage":"400 V AC 50 Hz phase to phase","Ambient air temperature for storage":"-40...60 °C","Earth-leakage protection time delay":"Instantaneous","Residual current tripping technology":"Voltage independent","Ambient air temperature for operation":"-5...60 °C","[Uimp] rated impulse withstand voltage":"6 kV conforming to EN 61009-1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/668a52444a3956278c5025959b444475.pdf","sourceUrl":"https://www.se.com/uk/en/product/A9N21461/prodis-earth-leakage-addon-block-vigi-dt40-3p-25a-300ma/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N21461/alternatives.json"},"ai":{"faq":[{"question":"Who supplies A9N21461 and how is it quoted for volume purchases?","answer":"We source the A9N21461 through independent distribution and surplus channels. Submit an RFQ for this order code — availability and current pricing are confirmed at quote time, not before."},{"question":"What is the closest pin-compatible alternative to A9N21461 in this component family?","answer":"No official Schneider replacement order code is published for the A9N21461. A current-production RCBO with the same pole count (3P), rated current (25 A), sensitivity (300 mA), and Type AC characteristic is the closest parametric match, but it requires a design review — it is not a guaranteed drop-in."},{"question":"What is A9N21461's listed range (Prodis) on this component line?","answer":"The A9N21461 belongs to the Schneider Prodis range, specifically the Vigi DT40 series of add-on residual current devices."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N21461","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/A9N21461 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-14T23:40:38.564Z","lastPublished":"2026-09-14T23:40:38.564Z","indexable":true}}