{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ENW24244","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ENW24244","canonicalUrl":"https://aoctrl.com/schneider/ENW24244","factsUrl":"https://aoctrl.com/api/mcp/products/ENW24244","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric EasyPact NW, air circuit breaker, ENW24244, 4000 A at 40 °C, 55 kA Icu at 440 V AC, 4P, IP40, fixed mount.","salesMarkdown":"Its breaking capacity hits 55 kA Icu at 220...440 V AC, 50/60 Hz per IEC 60947-2, meaning it can safely interrupt a fault current up to 55 kA at those voltages without welding its contacts or exploding — critical for a high-fault installation like a transformer secondary or a generator tie. Rated insulation voltage is 1000 V AC, and impulse withstand is 12 kV — that covers most industrial installations where voltage spikes from lightning or switching transients are a concern. This is a Category B breaker (IEC 60947-2), which means it's designed for distribution duty with selective coordination — it can hold in during a downstream fault to let a branch breaker clear first, avoiding a full plant blackout. ## Mounting and physical integration Fixed-mount design on a base plate, so it bolts into a switchboard or a dedicated enclosure — no DIN-rail option on this size; you're building a panel around it. Dimensions: 537 mm wide, 352 mm tall, 297 mm deep — that depth (297 mm) is the front-to-back space needed behind the panel door, so check your enclosure depth before cutting openings. Rear connections with a 115 mm pitch (without spreader) — the bus bars or cables land on the back, not the front, which keeps the front clean for the push-button controls and the contact position indicator. The ENW24244 is listed as current production — still an active catalog item from Schneider Electric, not a phase-out or obsolete part. It's part of the EasyPact NW family, which is the successor to the earlier Masterpact NW range; the form factor and ratings carry forward, so if you're replacing an old Masterpact NW, this is the direct drop-in. Designed and tested to IEC 60947-2, the international standard for low-voltage circuit breakers — covers thermal, magnetic, and short-circuit performance. Pollution degree 4 per IEC 60664-1 — that's the highest pollution severity (conductive dust, condensation), so it's suited for harsh industrial environments like cement plants or foundries. Operating temperature range -5 to 60 °C; storage from -40 to 85 °C (without control unit) — covers most indoor installations, but if your switchroom hits above 60 °C, you'll need to derate the 4000 A rating.","metaTitle":"Schneider Electric ENW24244 EasyPact NW Circuit Breaker, 400","metaDescription":"Schneider Electric ENW24244 EasyPact NW air circuit breaker, 4000 A rated current, 55 kA Icu at 440 V AC, IEC 60947-2. Quoted 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":"55 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":"ENW40N","Network frequency":"50/60 Hz","Poles description":"4P","Device application":"Distribution","[In] rated current":"4000 A at 40 °C","Connection position":"Vertical Horizontal","Utilisation category":"Category B","Electrical durability":"Category B: 5000 cycles 440 V AC 50/60 Hz without maintenance conforming to IEC 60947-2 Category B: 2500 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":"4000 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":"55 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":"42 kA (1 s) at 690 V AC 50/60 Hz conforming to IEC 60947-2 55 kA (1 s) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 30 kA (3 s) at 440/690 V AC 50/60 Hz conforming to IEC 60947-2","[Icm] rated short-circuit making capacity":"88 kA (Icm) at 690 V AC 50/60 Hz conforming to IEC 60947-2 121 kA (Icm) at 220...440 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/a8a651e2f75c371dfd5ce7d78e785827.pdf","sourceUrl":"https://www.se.com/in/en/product/ENW24244/circuit-breaker-frame-adapt-easypact-nw-4-poles-4000a-n-right-fixed/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ENW24244/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of ENW24244?","answer":"The ENW24244 has a breaking capacity of 55 kA Icu at 220...440 V AC and 42 kA Icu at 690 V AC, both per IEC 60947-2."},{"question":"What compliance standards does ENW24244 meet?","answer":"The ENW24244 complies with IEC 60947-2 for circuit breakers and IEC 60664-1 for pollution degree 4, and is suitable for isolation per IEC 60947-2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ENW24244","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/ENW24244 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}}