{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ENW24158","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ENW24158","canonicalUrl":"https://aoctrl.com/schneider/ENW24158","factsUrl":"https://aoctrl.com/api/mcp/products/ENW24158","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric EasyPact NW, circuit breaker, ENW24158, 4P, 1000 A at 40 °C, 66 kA Icu at 440 V AC, fixed mount, IP40.","salesMarkdown":"The ENW24158 is a Schneider Electric EasyPact NW 4-pole air circuit breaker rated 1000 A at 40 °C, built for distribution duty in industrial switchboards. That 1 kA gap between Icu and Ics is tight — a sign the design is optimized for the duty cycle, not overbuilt. If your switchgear runs hotter than 40 °C, you derate per the manufacturer's curve — the operating range tops out at 60 °C. The 4-pole configuration with neutral left (3D + N/2 or 4D protection options) covers both 3-wire and 4-wire distribution, so you can protect the neutral at half or full rating depending on your system grounding. Fixed-mount on a base plate, rear-connected. The 537 mm width by 352 mm height by 297 mm depth footprint is substantial — plan for a dedicated compartment in the switchboard, not a DIN-rail clip-in. Connection pitch is 115 mm without spreader, so busbar drilling and cable lug centers need to match that spacing. Vertical or horizontal connection orientation is accepted, which helps when routing busbars around existing gear. IP40 enclosure protection keeps tools and fingers out but does not stop water ingress — install in a dry indoor cabinet. The push-button control on the front gives local open/close without opening the door, which speeds fault isolation during commissioning. Electrical durability at 440 V AC is 6,000 cycles under Category B duty (the utilization category for distribution breakers with no intentional overload before fault clearing). The 25 ms maximum breaking time and 70 ms closing response are fast enough for selective coordination with downstream devices, provided the upstream breaker's time-current curve is set accordingly. The contact position indicator on the front gives positive visual confirmation of open/closed state — no guessing from handle angle alone.","metaTitle":"Schneider Electric ENW24158 EasyPact NW Circuit Breaker, 100","metaDescription":"ENW24158 EasyPact NW 4-pole circuit breaker, 1000 A at 40 °C, 66 kA Icu at 440 V AC. IEC 60947-2. Fixed mount, 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":"Left","Pollution degree":"4 conforming to IEC 60664-1","Range of product":"EasyPact NW","Breaking capacity":"66 kA Icu at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 690 V AC 50/60 Hz conforming to IEC 60947-2","Device short name":"ENW10H","Network frequency":"50/60 Hz","Poles description":"4P","Device application":"Distribution","[In] rated current":"1000 A at 40 °C","Connection position":"Vertical Horizontal","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":"H","Location of connection":"Rear","IP degree of protection":"IP40","Circuit breaker CT rating":"1000 A","Product or component type":"Circuit breaker","Suitability for isolation":"Yes conforming to IEC 60947-2","Contact position indicator":"Yes","Neutral protection setting":"Without protection (3D) 0.5 x Ir (3D + N/2) 1 x Ir (4D)","Protected poles description":"4P 4d","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":"65 kA (Ics) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 50 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":"65 kA (1 s) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 50 kA (1 s) at 690 V AC 50/60 Hz conforming to IEC 60947-2 36 kA (3 s) at 440/690 V AC 50/60 Hz conforming to IEC 60947-2","[Icm] rated short-circuit making capacity":"143 kA (Icm) at 220...440 V AC 50/60 Hz conforming to IEC 60947-2 105 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/b39fb4407dfaed2c237d9c0a2e441162.pdf","sourceUrl":"https://www.se.com/ae/en/product/ENW24158/circuit-breaker-frame-adapt-easypact-nw-4-poles-1000a-h-fixed/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ENW24158/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of ENW24158?","answer":"The ultimate breaking capacity (Icu) is 66 kA at 220...440 V AC and 50 kA at 690 V AC per IEC 60947-2. The service breaking capacity (Ics) is 65 kA at 220...440 V AC and 50 kA at 690 V AC."},{"question":"Where can I buy ENW24158 and how is it quoted?","answer":"The ENW24158 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 commercial offer."},{"question":"What standards does ENW24158 comply with?","answer":"The breaker complies with IEC 60947-2 for low-voltage switchgear and controlgear. Pollution degree 4 per IEC 60664-1 is also confirmed, covering heavy industrial contamination environments."},{"question":"What is the rated current and voltage of ENW24158?","answer":"Rated current (In) is 1000 A at 40 °C. Rated operational voltage (Ue) is 690 V AC, and rated insulation voltage (Ui) is 1000 V AC, all at 50/60 Hz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ENW24158","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/ENW24158 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}}