{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C40L3","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C40L3","canonicalUrl":"https://aoctrl.com/schneider/C40L3","factsUrl":"https://aoctrl.com/api/mcp/products/C40L3","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX400L basic frame, C40L3, 400A frame rating, 150kA/415VAC, 3 poles, without trip unit.","salesMarkdown":"## Breaking capacity — what the L code means on the bus The L breaking-capacity code means 150 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. At 440 V it's still 130 kA Icu. That's high-end interrupting performance for a 400 A frame — it clears severe fault currents without cascading upstream, which matters when you're coordinating a main or tie breaker in a switchboard. The Ics (service breaking capacity) mirrors the Icu at 415 V (150 kA), so the breaker can reclose after a fault at full rating, not a derated value. That's a real advantage for uptime on a critical feeder. Fixed-mount, backplate installation. Front connection both top and bottom. The 140 mm width, 255 mm height, and 110 mm depth fit the standard ComPacT NSX cutout. IP40 front face, IK07 impact resistance. Overvoltage category III, suitable for distribution boards downstream of the utility transformer. Dual-listed to EN/IEC 60947-2 and UL 60947-4-1 — covers both IEC and UL installations. Suitability for isolation confirmed per EN/IEC 60947-2. Class II shock protection on the front face. Rated insulation voltage 800 V AC, impulse withstand 8 kV. Electrical durability ranges from 3,000 to 12,000 cycles depending on voltage and load; mechanical durability 15,000 cycles.","metaTitle":"Schneider Electric C40L3 ComPacT NSX400L, 400A, 150kA/415VAC","metaDescription":"Schneider Electric C40L3 ComPacT NSX400L basic frame. 400A at 40°C, 150kA Icu at 415V AC, 3 poles. Active lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"Range":"ComPacT","Depth (D)":"110 mm","Standards":"EN/IEC 60947-2 UL 60947-4-1","Width (W)":"140 mm","Height (H)":"255 mm","Control type":"Toggle","Network type":"AC","Product name":"ComPacT NSX","Mounting mode":"Fixed","Protection type":"Without protection","lifecycle_stage":"current","Connection pitch":"45 mm","Mounting support":"Backplate","Pollution degree":"3 conforming to IEC 60664-1","Breaking capacity":"130 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 150 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 150 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 70 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2","Device short name":"NSX400L","Network frequency":"50/60 Hz","Poles description":"3P","Upside connection":"Front","Device application":"Distribution","[In] rated current":"400 A at 40 °C","Downside connection":"Front","Overvoltage category":"III","Utilisation category":"Category A","Electrical durability":"12000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-2 3000 cycles 690 V AC 50/60 Hz In conforming to IEC 60947-2 6000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-2 6000 cycles 690 V AC 50/60 Hz In/2 conforming to IEC 60947-2","Mechanical durability":"15000 cycles conforming to IEC 60947-2","Breaking capacity code":"L 150 kA 415 V AC","IK degree of protection":"IK07 conforming to IEC 62262","IP degree of protection":"IP40 conforming to IEC 60529","Product or component type":"Basic frame","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","[Ui] rated insulation voltage":"800 V AC 50/60 Hz conforming to IEC 60947-2","[Ue] rated operational voltage":"690 V AC 50/60 Hz conforming to IEC 60947-2","Electrical shock protection class":"Class II on front face","Ambient air temperature for storage":"-50...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"130 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 150 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 150 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 70 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 12 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 12 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2","[Uimp] rated impulse withstand voltage":"8 kV conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$680.79 – $915.46","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/81d3da41a002aa4a9f745f2f294f1337.pdf","sourceUrl":"https://www.se.com/ie/en/product/C40L3/circuit-breaker-basic-frame-compact-nsx400l-150ka-415vac-3-poles-400a-frame-rating-without-trip-unit/","alternativesUrl":"https://aoctrl.com/api/mcp/products/C40L3/alternatives.json"},"ai":{"faq":[{"question":"What is C40L3's rated current and breaking capacity?","answer":"The C40L3 is a 400 A frame rated at 40 °C, with a breaking capacity of 150 kA Icu at 380/415 V AC and 130 kA Icu at 440 V AC per IEC 60947-2."},{"question":"What standards does the C40L3 comply with?","answer":"The C40L3 complies with EN/IEC 60947-2 and UL 60947-4-1, and is suitable for isolation per IEC 60947-2."},{"question":"Where can I buy the C40L3 and how is it quoted?","answer":"The C40L3 is sourced to order against an RFQ through independent distribution channels. 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/C40L3","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/C40L3 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}}