{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9N21758","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9N21758","canonicalUrl":"https://aoctrl.com/schneider/A9N21758","factsUrl":"https://aoctrl.com/api/mcp/products/A9N21758","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Clario Vigi DPNc add-on residual current device, 3P+N, 40 A rated current, 300 mA sensitivity, Type AC, voltage independent, obsolete lifecycle.","salesMarkdown":"The A9N21758: This is an add-on residual current device (RCD) — the Vigi DPNc — designed to clip onto the side of a compatible MCB (the DPNc series) to provide earth-leakage protection in a single module width. It is not a standalone RCBO; it requires a mechanical and electrical connection to the matching MCB via the screw terminals. The 40 A rated current and 300 mA sensitivity make it a group-incomer device — typically installed at the head of a sub-distribution board to protect multiple downstream circuits against earth faults, not for individual final-circuit protection where 30 mA is standard. The impulse withstand voltage is 4 kV, conforming to EN/IEC 61009-1 — this is the standard for residual current operated circuit breakers with integral overcurrent protection, though this unit is the add-on block only. The voltage-independent tripping technology means the RCD will trip on residual current even if the phase voltage is lost — a safety advantage in fault conditions where the neutral may remain live. Mounts via clip-on to a DIN rail — standard 35 mm symmetrical rail. The 3P+N poles description with neutral on the left means it occupies four module positions (9 mm pitches each, 6 total per the spec, so 54 mm width). Depth is 70 mm, height 82 mm. Relative humidity tolerance is 95% at 55 °C. Maximum operating altitude is 2000 m. Standards compliance includes EN/IEC 61009-1 and EN/IEC 61009-2-1.","metaTitle":"A9N21758 Clario Vigi DPNc 40A 300mA RCD, Obsolete","metaDescription":"A9N21758 Clario Vigi DPNc add-on RCD, 3P+N, 40A, 300mA Type AC. Obsolete per manufacturer. Sourced to order against RFQ. EN/IEC 61009-1.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Range":"Clario","Width":"54 mm","Colour":"White","Height":"82 mm","Standards":"EN/IEC 61009-1 EN/IEC 61009-2-1","9 Mm Pitches":"6","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","Neutral position":"Left","Pollution degree":"3 conforming to EN/IEC 61009-1","Device short name":"Vigi DPNc","Network frequency":"50 Hz","Poles description":"3P + N","Relative humidity":"95 % at 55 °C","Tightening torque":"2 N.m","Operating altitude":"2000 m","[In] rated current":"40 A","Wire stripping length":"13 mm","Connections - terminals":"Cable upstream 0.75...16 mm² rigid Cable upstream 0.33...10 mm² flexible","IP degree of protection":"IP20 conforming to IEC 60529","Device location in system":"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":"440 V AC 50 Hz conforming to EN/IEC 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":"4 kV conforming to EN/IEC 61009-1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/11406449b0139bd99a8d62020b792339.pdf","sourceUrl":"https://www.se.com/uk/en/product/A9N21758/clario-earth-leakage-addon-block-vigi-dpnc-3p-+-n-40a-300ma/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9N21758/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for A9N21758?","answer":"Submit an RFQ through this listing. Since the part is obsolete, availability and pricing are confirmed at quote time through our independent sourcing network. No stock figures or prices are listed here because they change with each procurement cycle."},{"question":"What are the key ratings for A9N21758?","answer":"Rated current 40 A, earth-leakage sensitivity 300 mA Type AC, rated operational voltage 400 V AC phase-to-phase, insulation voltage 440 V AC, impulse withstand 4 kV, voltage-independent tripping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9N21758","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/A9N21758 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}}