{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"A9D55720","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"A9D55720","canonicalUrl":"https://aoctrl.com/schneider/A9D55720","factsUrl":"https://aoctrl.com/api/mcp/products/A9D55720","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Acti9 DPN Vigi RCBO, A9D55720, 20 A, 30 mA, Curve B, 6 kA, 3P+N, DIN rail.","salesMarkdown":"The Schneider Electric A9D55720 is a 20 A, 30 mA residual current circuit breaker with overcurrent protection (RCBO) from the Acti9 DPN Vigi range, combining a Curve B MCB and an RCD in a single 3P+N module. The 20 A rated current (In) governs the continuous load it can carry in a distribution board — sized for lighting, general-purpose socket circuits, or small motor loads where the full-load current stays under 16 A for headroom. The 30 mA earth-leakage sensitivity provides personnel protection against direct contact, compliant with the requirements of IEC 60364 for final circuits in residential and commercial installations. Curve B (magnetic trip at 3 to 5 x In, so 60 to 100 A) suits predominantly resistive loads or short cable runs where inrush is low — common for lighting and socket-outlet circuits where the MCB should not nuisance-trip on a cold filament or capacitor bank. The 6 kA breaking capacity (Icn at 380...415 V AC, 50/60 Hz) is the maximum prospective fault current the device can safely interrupt under standard test conditions per EN/IEC 61009-2-1. The limitation class 3 (energy let-through) means it restricts the I²t pass-through energy, helping with downstream coordination and reducing arc-flash stress on the connected wiring. The module occupies 10 x 9 mm pitches (90 mm width) — a 3P+N RCBO in a single-width housing that saves one module position compared to a separate MCB + RCD pair. Tunnel-type terminals accept 0.75 to 16 mm² rigid or 0.33 to 10 mm² flexible conductors; strip length is 15 mm, tightening torque 2 N.m.","metaTitle":"Schneider Electric A9D55720 Acti9 DPN Vigi RCBO, 20 A, 30 mA","metaDescription":"Schneider Electric A9D55720 Acti9 DPN Vigi RCBO, 20 A rated, 30 mA earth leakage, Curve B, 6 kA breaking capacity. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"78.5 mm","Range":"Acti9","Width":"90 mm","Colour":"White","Height":"91 mm","Standards":"EN/IEC 61009-2-1","Curve code":"B","9 Mm Pitches":"10","Control type":"Toggle","Network type":"AC","Product name":"Acti9 DPN Vigi","Mounting mode":"Clip-on","Tropicalisation":"2 conforming to IEC 60068-1","lifecycle_stage":"current","Connection pitch":"18 mm between phases 9 mm between phase and neutral","Limitation class":"3 conforming to EN/IEC 61009-2-1","Local signalling":"ON, OFF, fault trip","Mounting support":"DIN rail","Neutral position":"Left","Pollution degree":"3","Breaking capacity":"6000 A Icn at 380...415 V AC 50/60 Hz conforming to EN/IEC 61009-2-1","Device short name":"DPN N Vigi","Network frequency":"50/60 Hz","Poles description":"3P + N","Relative humidity":"90 % at 55 °C","Tightening torque":"2 N.m top or bottom","Device application":"Distribution","[In] rated current":"20 A","Overvoltage category":"III conforming to IEC 60364","Trip unit technology":"Thermal-magnetic","Electrical durability":"20000 cycles","Mechanical durability":"20000 cycles","Wire stripping length":"15 mm for top or bottom connection","Connections - terminals":"Tunnel type terminal top or bottom 0.75...16 mm² rigid Tunnel type terminal top or bottom 0.33...10 mm² flexible Tunnel type terminal top or bottom 0.33...10 mm² flexible with ferrule","IP degree of protection":"IP20 conforming to IEC 60529 IP40 (modular enclosure) conforming to IEC 60529","Magnetic tripping limit":"3...5 x In","Earth-leakage protection":"Integrated","Device location in system":"Outgoer","Earth-leakage sensitivity":"30 mA","Number of protected poles":"3","Product or component type":"Residual current breaker with overcurrent protection (RCBO)","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Contact position indicator":"Yes","Locking options description":"Padlocking device Sealable","Electromagnetic compatibility":"8/20 µs impulse withstand, 250 A conforming to EN/IEC 61009-2-1","[Ui] rated insulation voltage":"440 V AC 50/60 Hz","Earth-leakage protection class":"Type AC","[Ue] rated operational voltage":"380...415 V AC 50/60 Hz","Rated breaking and making capacity":"Idm 6000 A at 380...415 V AC 50/60 Hz conforming to EN/IEC 61009-2-1","Ambient air temperature for storage":"-30...70 °C","Earth-leakage protection time delay":"Instantaneous","Residual current tripping technology":"Voltage independent","Ambient air temperature for operation":"-5...60 °C","[Ics] rated service breaking capacity":"6000 A 100 % x Icn at 380...415 V AC 50/60 Hz conforming to EN/IEC 61009-2-1","[Uimp] rated impulse withstand voltage":"4 kV","Comb busbar and distribution block compatibility":"Top or bottom: YES"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8164a085445905a34ec5f7910e7df4af.pdf","sourceUrl":"https://www.se.com/ng/en/product/A9D55720/acti9-dpn-n-vigi-rcbo-3p+n-20a-b-curve-6000a-30ma-type-ac/","alternativesUrl":"https://aoctrl.com/api/mcp/products/A9D55720/alternatives.json"},"ai":{"faq":[{"question":"What is A9D55720's breaking capacity?","answer":"The A9D55720 has a breaking capacity of 6000 A Icn at 380...415 V AC, 50/60 Hz, conforming to EN/IEC 61009-2-1."},{"question":"What does the 30 mA earth-leakage sensitivity mean?","answer":"The 30 mA sensitivity provides personnel protection against direct contact with live parts, compliant with IEC 60364 requirements for final circuits in residential and commercial installations."},{"question":"Where can I buy A9D55720?","answer":"The A9D55720 is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/A9D55720","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/A9D55720 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}}