{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N18574","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N18574","canonicalUrl":"https://aoctrl.com/schneider/A9N18574","factsUrl":"https://aoctrl.com/api/mcp/products/A9N18574","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Vigi C120 add-on residual current device, 2P, 125 A, 500 mA sensitivity, Type A, 73 mm depth, white, obsolete.","salesMarkdown":"It's voltage-independent, meaning the trip mechanism doesn't rely on the line voltage to operate — a useful reliability feature if the neutral is lost upstream. The tunnel terminals accept up to 50 mm² rigid or 35 mm² flexible cable. Rated operational voltage covers 230–415 V AC 50/60 Hz, with an insulation voltage of 500 V and impulse withstand of 6 kV per IEC 60947-2. The 73 mm depth and 117 mm width mean it takes up a standard modular space on the rail — 9 mm pitches × 7, so it occupies 7 modules of DIN width. IP20 rated, so it's for inside a panel only, not washdown areas. Designed and tested to EN 61009 and IEC/EN 61009-2-1, plus IEC 60947-2 for the impulse withstand and pollution degree 3 rating. The Type A classification covers the most common fault types in mixed-load panels. The 125 A rated current is the continuous load it can carry — sized for a main incomer or a large subfeed in a distribution board. The 500 mA sensitivity is a deliberate choice: it's less sensitive than a 30 mA RCD, so it won't nuisance-trip on normal leakage from long cable runs or equipment filters. Use it where the goal is fire protection or equipment protection, not personal shock protection (that needs 30 mA or lower). Instantaneous trip time means no intentional delay — it reacts as soon as the fault current exceeds 500 mA. That's fine for a main switch, but if you need selectivity downstream, you'd want a time-delayed (S-type) RCD instead.","metaTitle":"Schneider Electric A9N18574 Vigi C120 RCD Add-On Block, 125","metaDescription":"Schneider Electric A9N18574 Vigi C120 earth leakage add-on block, 2P, 125 A, 500 mA, Type A. Obsolete – sourced to order against RFQ. DIN-rail mount, 73 mm depth.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"73 mm","Width":"117 mm","Colour":"White","Height":"95 mm","Standards":"EN 61009 IEC/EN 61009-2-1","9 Mm Pitches":"7","Network type":"AC","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":"500 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 A","[Ue] rated operational voltage":"230...415 V AC 50/60 Hz","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":"-25...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/9b38a3ba16701401a6ce52534e806004.pdf","sourceUrl":"https://www.se.com/ie/en/product/A9N18574/vigi-c120-earth-leakage-addon-block-2p-500-ma-class-a/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N18574/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the A9N18574?","answer":"The A9N18574 is available through independent distribution and is quoted to order against an RFQ. Availability and current pricing are confirmed at the time of quote."},{"question":"What are the key ratings of the A9N18574?","answer":"The A9N18574 is a 2-pole Vigi C120 add-on RCD rated 125 A continuous, with 500 mA earth-leakage sensitivity, Type A protection, voltage-independent trip, and instantaneous time delay. It mounts on 35 mm DIN rail and occupies 7 modular pitches."},{"question":"What is the depth of the A9N18574?","answer":"The A9N18574 has a depth of 73 mm."},{"question":"What is the width of the A9N18574?","answer":"The A9N18574 has a width of 117 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N18574","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/A9N18574 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}}