{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C40S4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C40S4","canonicalUrl":"https://aoctrl.com/schneider/C40S4","factsUrl":"https://aoctrl.com/api/mcp/products/C40S4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX400S basic frame, C40S4, 400A frame rating at 40°C, 100kA Icu at 415VAC, 4 poles, fixed mount, without trip unit.","salesMarkdown":"The Schneider Electric C40S4 is a ComPacT NSX400S basic frame — a 4-pole, fixed-mount molded-case switch rated 400 A at 40 °C, without an integral trip unit. It is the structural carrier onto which you install a separate trip module (electronic or Micrologic) and any auxiliary blocks. Per the datasheet, it is listed as a basic frame, protection type without protection, meaning the overcurrent and short-circuit sensing elements are not included in this order code. ## Breaking capacity — what the S code means for your fault level The breaking capacity code is S, delivering 100 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. At 220/240 V it rises to 120 kA Icu; at 525 V it drops to 40 kA Icu; at 660/690 V it holds 25 kA Icu. ## Physical integration — mounting, dimensions, and panel fit Fixed-mount on a backplate, 255 mm high by 185 mm wide by 110 mm deep. Connection pitch is 45 mm, neutral position left. Front-connect both upside and downside. IP40 front face, IK07 impact rating. The toggle control is manual; no motor operator included. ## Durability and environmental range Mechanical durability is 15,000 cycles per IEC 60947-2. Electrical durability varies by load: 12,000 cycles at 440 V AC at In/2, 6,000 cycles at 440 V AC at In, 6,000 cycles at 690 V AC at In/2, and 3,000 cycles at 690 V AC at In. Rated insulation voltage 800 V AC, rated impulse withstand voltage 8 kV. Electrical shock protection class II on the front face. The manufacturer provides RoHS, REACH, and UL documentation with the product; these are available on request at quote time.","metaTitle":"Schneider Electric C40S4 ComPacT NSX400S Basic Frame, 400A,","metaDescription":"Schneider Electric C40S4 ComPacT NSX400S basic frame, 400A rated at 40°C, 100kA Icu at 415VAC. 4-pole, fixed mount, without trip unit. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Range":"ComPacT","title":"C40S4","Depth (D)":"110 mm","Standards":"EN/IEC 60947-2 UL 60947-4-1","Width (W)":"185 mm","Height (H)":"255 mm","description":"Circuit breaker basic frame, ComPacT NSX400S, 100kA/415VAC, 4 poles, 400A frame rating, without trip unit","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","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60664-1","Breaking capacity":"100 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 120 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 40 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 65 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 90 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 25 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2","Device short name":"NSX400S","Network frequency":"50/60 Hz","Poles description":"4P","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":"S 100 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":"100 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 65 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 90 kA at 440 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 60947-2 125 kA at 220/240 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":"$512.21","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5a46295bc01610a5c42e6a5c32a6e6a3.pdf","sourceUrl":"https://www.se.com/nz/en/product/C40S4/circuit-breaker-basic-frame-compact-nsx400s-100ka-415vac-4-poles-400a-frame-rating-without-trip-unit/"},"ai":{"faq":[{"question":"What is the C40S4's breaking capacity at 415 V?","answer":"The C40S4 delivers 100 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2, with the same 100 kA Ics for service continuity after a fault."},{"question":"What compliance documentation does Schneider provide for the C40S4?","answer":"The C40S4 is certified to EN/IEC 60947-2 and UL 60947-4-1. RoHS, REACH, and UL documentation are available on request."},{"question":"Where can I buy the C40S4 and how is it quoted?","answer":"The C40S4 is sourced and quoted 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":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C40S4","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/C40S4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}