{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C16B4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C16B4","canonicalUrl":"https://aoctrl.com/schneider/C16B4","factsUrl":"https://aoctrl.com/api/mcp/products/C16B4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX series, NSX160B basic frame, C16B4, 160 A frame rating, 4 poles, 25 kA Icu at 415 V AC, toggle control, fixed mount.","salesMarkdown":"## What this basic frame gives you It ships without a trip unit, so you pair it with the appropriate electronic or thermal-magnetic trip module for your load. At 440 V AC it still holds 20 kA Icu; at 500 V AC it drops to 15 kA. That's a solid selectivity window for a 160 A panel feeder. It's a panel-mount breaker, not a DIN-rail snap-on, so plan for screw-down mounting and busbar takeoffs. Mechanical durability is 40,000 cycles per IEC 60947-2. Electrical durability varies with voltage and load: 40,000 cycles at 440 V AC at half rated current (In/2), 20,000 cycles at full In at 440 V AC, and 7,500 cycles at 690 V AC at full In. That's a lot of switching for a distribution breaker — it's not just a backup isolator, it's rated for regular load switching.","metaTitle":"Schneider Electric C16B4 ComPacT NSX160B Basic Frame, 160A,","metaDescription":"Schneider Electric C16B4 ComPacT NSX160B basic frame, 160A at 40°C, 4 poles, 25kA Icu at 415VAC. 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":"C16B4","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 NSX160B, 25kA/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":"15 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 20 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 40 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2","Device short name":"NSX160B","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":"B 25 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":"20 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 25 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 40 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 15 kA at 500 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":"$184.39 – $287.74","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/41ff6648820e6b8f39e87a1bfedb6980.pdf","sourceUrl":"https://www.se.com/ph/en/product/C16B4/circuit-breaker-basic-frame-compact-nsx160b-25ka-415vac-4-poles-160a-frame-rating-without-trip-unit/"},"ai":{"faq":[{"question":"Where can I buy C16B4 and how do I get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."},{"question":"What is C16B4's breaking capacity at 415 V AC?","answer":"25 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2. The service breaking capacity (Ics) at that voltage is also 25 kA."},{"question":"What compliance documentation does this breaker carry?","answer":"Certified to EN/IEC 60947-2 and UL 60947-4-1. Suitable for isolation per EN/IEC 60947-2. Class II shock protection on the front face. Pollution degree 3 per IEC 60664-1."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C16B4","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/C16B4 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}}