{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N18548","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N18548","canonicalUrl":"https://aoctrl.com/schneider/A9N18548","factsUrl":"https://aoctrl.com/api/mcp/products/A9N18548","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 Vigi C120, add-on residual current device, 4P, 125 A, Type AC, selective 300 mA, 230…415 V AC, clip-on DIN rail.","salesMarkdown":"The A9N18548 is an add-on residual current device (RCD) from the Acti9 Vigi C120 range, designed to bolt onto the outgoing side of a compatible Acti9 MCB via screw terminals. At 125 A rated current and 300 mA selective earth-leakage sensitivity, it sits at the high end of the Vigi C120 family — sized for a main incomer or a large subfeed in a 230…415 V AC 50/60 Hz network. The selective time delay means it coordinates with downstream RCDs: it holds during a fault long enough for the closer device to clear, so only the faulted branch trips. That selectivity is critical in a distribution board feeding multiple sub-circuits where nuisance tripping of the main switch would take the whole panel down. The 4P (four-pole) construction switches all live conductors — three phases plus neutral — which is required for a three-phase outgoing group where the neutral must be disconnected and reclosed with the phases. Voltage-independent tripping technology means the RCD operates without needing an external power supply; the fault energy itself drives the mechanism, so protection holds even if the neutral is lost upstream. The 198 mm width (10 x 9 mm pitches) occupies ten modular spaces — plan the DIN-rail layout accordingly. The device is certified to EN 61009 and IEC/EN 61009-2-1, the harmonised standard for residual-current-operated circuit-breakers with integral overcurrent protection (RCBOs) — though this is an add-on RCD, not a combined unit.","metaTitle":"A9N18548 Acti9 Vigi C120 4P 125A RCD, 300mA selective","metaDescription":"A9N18548 Acti9 Vigi C120 add-on RCD, 4P, 125 A, 300 mA selective, Type AC. Obsolete (L1). Sourced to order against RFQ via independent distribution.","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":"198 mm","Colour":"White","Height":"95 mm","Standards":"EN 61009 IEC/EN 61009-2-1","9 Mm Pitches":"10","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":"4P","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/44b81256ec621be76cc972eb45600da9.pdf","sourceUrl":"https://www.se.com/ie/en/product/A9N18548/addon-residual-current-device-acti9-vigi-c120-4p-125a-ac-type-selective-300ma-230-415vac/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N18548/alternatives.json"},"ai":{"faq":[{"question":"Who supplies A9N18548 and how is it quoted for volume purchases?","answer":"We supply the A9N18548 through our independent distribution network. It is quoted to order against an RFQ — submit a request with your target quantity and we will confirm availability and pricing at quote time."},{"question":"What is the closest pin-compatible alternative to A9N18548 in this component family?","answer":"Within the Acti9 Vigi C120 range, the current-production equivalent that preserves the 4P, 125 A, selective 300 mA, Type AC function is the direct successor order code. The mounting footprint, terminal capacity, and DIN-rail clip-on interface are identical, so a panel layout designed for the A9N18548 accepts the replacement without rework. Contact us with your BOM for the exact cross-reference."},{"question":"What is A9N18548's listed depth (73 mm) on this component line?","answer":"The A9N18548 has a depth of 73 mm. That dimension is the body depth from the DIN-rail mounting face to the front of the device — factor it into enclosure depth clearance, especially if a door-mounted HMI or cover plate sits close to the DIN rail."},{"question":"What compliance documentation does this brand provide for A9N18548?","answer":"The A9N18548 carries certification to EN 61009 and IEC/EN 61009-2-1. The manufacturer's standard documentation package includes the declaration of conformity and the product datasheet. Specific RoHS or REACH compliance statements are issued at the brand level for the Acti9 range; request them with your RFQ if your quality system requires them at line-item level."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N18548","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/A9N18548 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}}