{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N18544","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N18544","canonicalUrl":"https://aoctrl.com/schneider/A9N18544","factsUrl":"https://aoctrl.com/api/mcp/products/A9N18544","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 Vigi C120, add-on residual current device, 2P, 125 A, AC type selective, 300 mA, 230…415 V AC.","salesMarkdown":"## What this RCD does in the panel The Schneider Electric A9N18544 is an add-on residual current device (RCD) from the Acti9 Vigi C120 range, designed to clip onto the outgoing side of a compatible Acti9 MCB. It provides earth-leakage protection for circuits rated up to 125 A on 230…415 V AC networks at 50/60 Hz. The 300 mA sensitivity with selective time delay means it's intended for feeder or submain circuits where a small delay before tripping is needed to coordinate with downstream RCDs — preventing a nuisance trip on a ground fault that a downstream device should clear first. Type AC protection covers sinusoidal alternating residual currents. The voltage-independent tripping technology means it operates without needing a separate power supply — it uses the fault current itself to trip, so it remains functional even if the line voltage drops. The 2-pole (2P) form factor occupies 7 modules of 9 mm pitch (63 mm total width), with a depth of 73 mm and height of 95 mm. Tunnel-type terminals accept 1…50 mm² rigid or 1…35 mm² flexible conductors; tighten to 3.5 N·m after stripping 15 mm of insulation. Rated for pollution degree 3 (industrial environments) per IEC 60947-2, with IP20 finger-safe protection on the front. Ambient operating range is -5…60 °C; storage range -40…60 °C.","metaTitle":"Schneider Electric A9N18544 Acti9 Vigi C120 RCD, 2P 125A 300","metaDescription":"Schneider Electric A9N18544 Acti9 Vigi C120 add-on RCD, 2P, 125A rated, 300mA AC type selective, 230-415VAC. Active production, sourced to order. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"73 mm","Range":"Acti9","Width":"117 mm","title":"A9N18544","Colour":"White","Height":"95 mm","Standards":"EN 61009 IEC/EN 61009-2-1","description":"Add-on residual current device, Acti9 Vigi C120, 2P, 125A, AC type, selective, 300mA, 230...415VAC","9 Mm Pitches":"7","Network type":"AC","Product name":"Acti9 Vigi C120","Mounting mode":"Clip-on","lifecycle_stage":"current","Mounting support":"35 mm symmetrical DIN rail","Pollution degree":"3 conforming to IEC 60947-2","Device short name":"Vigi C120","Network frequency":"50/60 Hz","Poles description":"2P","Tightening torque":"3.5 N.m","[In] rated current":"125 A","Mechanical durability":"20000 cycles","Wire stripping length":"15 mm","Connections - terminals":"Tunnel type terminals 1...35 mm² flexible Tunnel type terminals 1...50 mm² rigid","IP degree of protection":"IP20","Device location in system":"Outgoer Group incomer","Earth-leakage sensitivity":"300 mA","Product or component type":"Add-on residual current device","Electrical connection to mcb":"By screws","[Ui] rated insulation voltage":"500 V AC 50/60 Hz conforming to IEC 60947-1","Earth-leakage protection class":"Type AC","[Ue] rated operational voltage":"230...415 V AC 50/60 Hz","Ambient air temperature for storage":"-40...60 °C","Earth-leakage protection time delay":"Selective","Residual current tripping technology":"Voltage independent","Ambient air temperature for operation":"-5...60 °C","[Uimp] rated impulse withstand voltage":"6 kV conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dff777a37e4b6c351b7158facd597a4a.pdf","sourceUrl":"https://www.se.com/be/en/product/A9N18544/addon-residual-current-device-acti9-vigi-c120-2p-125a-ac-type-selective-300ma-230-415vac/"},"ai":{"faq":[{"question":"What is the rated current and earth-leakage sensitivity of A9N18544?","answer":"The A9N18544 is rated at 125 A with 300 mA earth-leakage sensitivity, AC type, selective time delay, for 230…415 V AC networks."},{"question":"What standards does A9N18544 comply with?","answer":"It complies with EN 61009 and IEC/EN 61009-2-1, with a rated impulse withstand voltage of 6 kV per IEC 60947-2 and pollution degree 3 per IEC 60947-2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N18544","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/A9N18544 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}