{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"32743","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"32743","canonicalUrl":"https://aoctrl.com/schneider/32743","factsUrl":"https://aoctrl.com/api/mcp/products/32743","rawCanonicalId":null},"summary":{"shortDescription":"circuit breaker Compact NS400H - MP2 - 400 A - 3 poles 3d","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Depth":"110 mm","Width":"140 mm","Height":"255 mm","Standards":"IEC 60947-2","Control type":"Toggle","Network type":"DC","Mounting mode":"Fixed","Trip unit name":"MP2","Protection type":"Short-circuit protection (magnetic)","lifecycle_stage":"unknown","Connection pitch":"45 mm","Local signalling":"Positive contact indication","Mounting support":"Backplate","Pollution degree":"3 conforming to IEC 60947","Range of product":"Compact NS100...630","Trip unit rating":"400 A","Breaking capacity":"100 kA Icu at 250 V DC 1P conforming to IEC 60947-2 100 kA Icu at 48/125 V DC 1P conforming to IEC 60947-2 100 kA Icu at 500 V DC 2P conforming to IEC 60947-2 100 kA Icu at 750 V DC 3P conforming to IEC 60947-2","Device short name":"Compact NS400DC","Poles description":"3P","Upside connection":"Front","Device application":"Distribution","[In] rated current":"400 A at 40 °C 320 A at 65 °C","Downside connection":"Front","Circuit breaker name":"Compact NS400DC","Trip unit technology":"Magnetic","Utilisation category":"Category A","Electrical durability":"1000 cycles 250 V DC In conforming to IEC 60947-2 1000 cycles 500 V DC In conforming to IEC 60947-2 1000 cycles 750 V DC In conforming to IEC 60947-2 2000 cycles 250 V DC In/2 conforming to IEC 60947-2 2000 cycles 500 V DC In/2 conforming to IEC 60947-2 2000 cycles 750 V DC In/2 conforming to IEC 60947-2","Mechanical durability":"5000 cycles","Breaking capacity code":"DC","IK degree of protection":"IK07 conforming to EN 50102","IP degree of protection":"IP40 conforming to IEC 60529","Magnetic tripping current":"1250...2500 A","Product or component type":"Circuit breaker","Suitability for isolation":"Yes conforming to IEC 60947-2","Protected poles description":"3t","[Ui] rated insulation voltage":"800 V DC conforming to IEC 60947-2","[Ue] rated operational voltage":"750 V DC conforming to IEC 60947-2","Ambient air temperature for storage":"-50...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"100 kA at 250 V DC conforming to IEC 60947-2 100 kA at 48/125 V DC conforming to IEC 60947-2 100 kA at 500 V DC conforming to IEC 60947-2 100 kA at 750 V DC conforming to IEC 60947-2","[Uimp] rated impulse withstand voltage":"8 kV conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.se.com/uk/en/product/32743/circuit-breaker-compact-ns400h-mp2-400-a-3-poles-3d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/32743/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/32743","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/32743 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}}