{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ENW24239","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ENW24239","canonicalUrl":"https://aoctrl.com/schneider/ENW24239","factsUrl":"https://aoctrl.com/api/mcp/products/ENW24239","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric EasyPact NW, ENW24239, 4-pole fixed circuit breaker, 1250 A rated at 40 °C, 50 kA Icu at 440 V AC, IEC 60947-2, IP40.","salesMarkdown":"The ENW24239 is a Schneider Electric EasyPact NW 4-pole fixed circuit breaker rated 1250 A at 40 °C. That 1250 A continuous rating governs the main feeder or bus tie it can protect — size the upstream transformer or generator accordingly. The 50 kA Icu at 220…440 V AC tells you it can safely interrupt a fault up to that level without rupturing; below 440 V the full 50 kA holds, at 690 V it derates to 42 kA Icu. The Ics service breaking capacity matches the Icu at both voltage levels, meaning after clearing a fault at rated breaking capacity the breaker remains functional — no immediate replacement needed for a downstream short. The IP40 enclosure keeps out tools and wires over 1 mm but is not sealed against moisture — mount indoors or in a cabinet. ## Deployment context This is a fixed-mount breaker on a base plate, not a draw-out unit — plan for bolted connections and rear access. The 537 mm width, 352 mm height, and 297 mm depth define the panel cutout and enclosure size. Connection pitch is 115 mm without spreader, which matters when laying out bus bars or cable lugs. The neutral is on the right. Category B utilisation means it's designed for distribution duty with no intentional delay on short-circuit — coordination studies should treat it as instantaneous above the magnetic pickup. Designed and tested to IEC 60947-2 for low-voltage switchgear and controlgear. Electrical durability at 440 V is 6,000 cycles without maintenance, dropping to 4,000 cycles at 690 V. Maximum breaking time is 25 ms; maximum closing response time is 70 ms.","metaTitle":"ENW24239 EasyPact NW Circuit Breaker, 1250 A, 50 kA Icu","metaDescription":"ENW24239 EasyPact NW 4-pole circuit breaker, 1250 A rated current, 50 kA breaking capacity at 440 V AC. IEC 60947-2 compliant, IP40. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Depth":"297 mm","Range":"EasyPact","Width":"537 mm","Height":"352 mm","Standards":"IEC 60947-2","Control type":"Push-button","Network type":"AC","Mounting mode":"Fixed","lifecycle_stage":"current","Connection pitch":"115 mm without spreader","Mounting support":"Base plate","Neutral position":"Right","Pollution degree":"4 conforming to IEC 60664-1","Range of product":"EasyPact NW","Breaking capacity":"50 kA Icu at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 42 kA Icu at 690 V AC 50/60 Hz conforming to IEC 60947-2","Device short name":"ENW12N","Network frequency":"50/60 Hz","Poles description":"4P","Device application":"Distribution","[In] rated current":"1250 A at 40 °C","Connection position":"Horizontal Vertical","Utilisation category":"Category B","Electrical durability":"Category B: 6000 cycles 440 V AC 50/60 Hz without maintenance conforming to IEC 60947-2 Category B: 4000 cycles 690 V AC 50/60 Hz without maintenance conforming to IEC 60947-2","Maximum breaking time":"25 ms","Mechanical durability":"20000 cycles (with maintenance) conforming to IEC 60947-2 10000 cycles (without maintenance) conforming to IEC 60947-2","Breaking capacity code":"N","Location of connection":"Rear","IP degree of protection":"IP40","Circuit breaker CT rating":"1250 A","Product or component type":"Circuit breaker","Suitability for isolation":"Yes conforming to IEC 60947-2","Contact position indicator":"Yes","Maximum closing response time":"70 ms","[Ui] rated insulation voltage":"1000 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","Ambient air temperature for storage":"-40...85 °C without control unit -25...85 °C with control unit","Ambient air temperature for operation":"-5...60 °C","[Ics] rated service breaking capacity":"50 kA (Ics) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 42 kA (Ics) at 690 V AC 50/60 Hz conforming to IEC 60947-2","[Uimp] rated impulse withstand voltage":"12 kV conforming to IEC 60947-2","[Icw] rated short-time withstand current":"50 kA (1 s) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 42 kA (1 s) at 690 V AC 50/60 Hz conforming to IEC 60947-2 25 kA (3 s) at 440/690 V AC 50/60 Hz conforming to IEC 60947-2","[Icm] rated short-circuit making capacity":"105 kA (Icm) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 88 kA (Icm) at 690 V AC 50/60 Hz conforming to IEC 60947-2"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/db1d33c17af7bd9932c91eb29b718f8c.pdf","sourceUrl":"https://www.se.com/eg/en/product/ENW24239/circuit-breaker-frame-adapt-easypact-nw-4-poles-1250a-n-right-fixed/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ENW24239/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of ENW24239?","answer":"50 kA Icu at 220…440 V AC and 42 kA Icu at 690 V AC, both per IEC 60947-2. The Ics service breaking capacity matches those values."},{"question":"What is the rated current of ENW24239?","answer":"1250 A at 40 °C ambient. The CT rating matches the breaker rating at 1250 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ENW24239","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/ENW24239 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}}