{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C10B4","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C10B4","canonicalUrl":"https://aoctrl.com/schneider/C10B4","factsUrl":"https://aoctrl.com/api/mcp/products/C10B4","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric ComPacT NSX100B basic frame, C10B4, 4P, 100 A at 40 °C, 25 kA Icu at 415 V AC, without trip unit, toggle control, IP40.","salesMarkdown":"The C10B4 is a ComPacT NSX100B basic frame — a 4-pole, 100 A molded-case circuit breaker frame without a trip unit, intended for distribution applications. The Ics (service breaking capacity) at the same voltage is also 25 kA, meaning it can reclose after a fault at full rated current without derating — a practical advantage for selectivity studies. The 8 kV impulse withstand (Uimp) means it survives surge events typical of overvoltage category III environments — think main distribution boards. Once you add a thermal-magnetic or electronic trip unit (sold separately), the actual protection curve is set by that module. ## Deployment and integration Mounts fixed to a backplate (not DIN rail) — the 140 mm width, 161 mm height, and 86 mm depth fit standard ComPacT NSX cutouts. Front connections top and bottom, neutral on the left, 35 mm connection pitch. Toggle control for manual operation. Electrical durability is 30,000 cycles at 440 V AC at In, and 50,000 cycles at In/2. Mechanical durability is 50,000 cycles. That's typical for a distribution-grade MCCB — expect decades of service in a fixed installation with infrequent switching.","metaTitle":"Schneider Electric C10B4 ComPacT NSX100B Basic Frame, 100A,","metaDescription":"Schneider Electric C10B4 ComPacT NSX100B basic frame, 100A rated current, 25kA breaking capacity at 415V AC. Current production. Sourced to order against RFQ. IEC 60947-2, UL 60947","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Range":"ComPacT","title":"C10B4","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 NSX100B, 25kA at 415VAC 50/60 Hz, 100A, without trip unit, 4 poles","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":"NSX100B","Network frequency":"50/60 Hz","Poles description":"4P","Upside connection":"Front","Device application":"Distribution","[In] rated current":"100 A at 40 °C","Downside connection":"Front","Overvoltage category":"III","Utilisation category":"Category A","Electrical durability":"10000 cycles 690 V AC 50/60 Hz In conforming to IEC 60947-2 20000 cycles 690 V AC 50/60 Hz In/2 conforming to IEC 60947-2 30000 cycles 440 V AC 50/60 Hz In conforming to IEC 60947-2 50000 cycles 440 V AC 50/60 Hz In/2 conforming to IEC 60947-2","Mechanical durability":"50000 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 7.5 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":"$111.17 – $204.78","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ab0e0cac32b48adc64e08652b949f796.pdf","sourceUrl":"https://www.se.com/ae/en/product/C10B4/circuit-breaker-basic-frame-compact-nsx100b-25ka-at-415vac-50-60-hz-100a-without-trip-unit-4-poles/"},"ai":{"faq":[{"question":"What is the breaking capacity of C10B4?","answer":"The C10B4 has a breaking capacity of 25 kA Icu at 380/415 V AC, 20 kA at 440 V AC, and 40 kA at 220/240 V AC, all per IEC 60947-2. The service breaking capacity (Ics) matches these values at 415 V and 440 V."},{"question":"Does C10B4 include a trip unit?","answer":"No, the C10B4 is a basic frame without a trip unit. You must order a separate thermal-magnetic or electronic trip unit to set the protection curve."},{"question":"What standards does C10B4 comply with?","answer":"It complies with EN/IEC 60947-2 and UL 60947-4-1. It is also isolation-suitable per EN/IEC 60947-2 and rated for pollution degree 3 and overvoltage category III."},{"question":"Where can I buy C10B4 and how is it quoted?","answer":"The C10B4 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C10B4","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/C10B4 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}}