{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C16S4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C16S4","canonicalUrl":"https://aoctrl.com/schneider/C16S4","factsUrl":"https://aoctrl.com/api/mcp/products/C16S4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX160S basic frame, C16S4, 160A frame rating, 100kA/415VAC breaking capacity, 4 poles, toggle control, IP40, fixed mounting.","salesMarkdown":"It is rated 100 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2, which means it can safely interrupt a fault up to that level without welding contacts or cascading upstream. The 160 A frame rating at 40 °C sets the continuous current limit for the assembly; the actual trip curve comes from the plug-in trip unit (not included). Breaking capacity is the headline figure: 100 kA Icu at 415 V AC, with 120 kA at 240 V and 90 kA at 440 V. The Ics (service breaking capacity) matches the Icu at every voltage level — meaning the frame can be reclosed after a fault at full rated current without derating, a requirement for main incomer duty in many panel designs. The 8 kV impulse withstand voltage (Uimp) and overvoltage category III confirm it is built for fixed-installation distribution boards, not plug-in equipment. Mechanical durability is 40,000 cycles; electrical durability ranges from 40,000 cycles at 440 V at half rated current down to 7,500 cycles at 690 V at full rated current. Fixed mounting on a backplate, 140 mm wide × 161 mm high × 86 mm deep. The 35 mm connection pitch and front-connect terminals (both upside and downside) suit standard panel layouts with busbar or cable entry from the front. IP40 enclosure protection means it is suitable for indoor switchboards where no water spray is present; the IK07 impact rating handles incidental tool contact during installation.","metaTitle":"Schneider C16S4 ComPacT NSX160S Basic Frame, 160A, 100kA/415","metaDescription":"Schneider C16S4 ComPacT NSX160S basic frame, 160A frame rating, 100kA Icu at 415VAC, 4 poles, IP40, current production. 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":"C16S4","Depth (D)":"86 mm","Standards":"EN/IEC 60947-2 UL 60947-4-1","Width (W)":"140 mm","Height (H)":"161 mm","description":"Circuit breaker basic frame, ComPacT NSX160S, 100kA/415VAC, 4 poles, 160A 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":"35 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 15 kA Icu at 660/690 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","Device short name":"NSX160S","Network frequency":"50/60 Hz","Poles description":"4P","Upside connection":"Front","Device application":"Distribution","[In] rated current":"160 A at 40 °C","Downside connection":"Front","Overvoltage category":"III","Utilisation category":"Category A","Electrical durability":"40000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-2 15000 cycles 690 V AC 50/60 Hz In/2 conforming to IEC 60947-2 20000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-2 7500 cycles 690 V AC 50/60 Hz In conforming to IEC 60947-2","Mechanical durability":"40000 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 60947-2 120 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 15 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 40 kA at 525 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","[Uimp] rated impulse withstand voltage":"8 kV conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$381.23 – $906.37","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/72dfa697608284efc1e7a734e438d963.pdf","sourceUrl":"https://www.se.com/be/en/product/C16S4/circuit-breaker-basic-frame-compact-nsx160s-100ka-415vac-4-poles-160a-frame-rating-without-trip-unit/"},"ai":{"faq":[{"question":"What are the key standards for the C16S4?","answer":"It is certified to EN/IEC 60947-2 and UL 60947-4-1. The IEC 60947-2 standard covers circuit-breaker performance including breaking capacity and service continuity; UL 60947-4-1 covers contactors and motor-starters but is referenced here for the switch-disconnector function."},{"question":"What is the breaking capacity of the C16S4 at 415 V?","answer":"100 kA Icu at 380/415 V AC 50/60 Hz, with equal Ics of 100 kA at that voltage. This means the frame can be reclosed after interrupting a fault at full rated current."},{"question":"Where can I buy the C16S4?","answer":"The C16S4 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"Does the C16S4 include a trip unit?","answer":"No, this is a basic frame (product type: basic frame) without a trip unit. The trip unit must be ordered separately to provide overcurrent protection."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C16S4","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/C16S4 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}}