{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ENW21423","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ENW21423","canonicalUrl":"https://aoctrl.com/schneider/ENW21423","factsUrl":"https://aoctrl.com/api/mcp/products/ENW21423","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric EasyPact NW, Trip System 2.0E control unit, ENW21423, LI protection, 800-4000 A, 690 V AC, fixed mounting, digital display.","salesMarkdown":"## What the ENW21423 controls and how it protects The Schneider Electric ENW21423 is a microprocessor-based control unit for the EasyPact NW range of air circuit breakers. It carries the Trip System 2.0E with LI protection — that's long-time overload and instantaneous short-circuit in one package, covering the standard industrial protection profile. The trip unit rating spans 800 to 4000 A, so it governs the full current range of the breaker frame it sits in, not a single fixed setting. That means the unit is certified for the fault-clearing and coordination requirements of industrial distribution panels, not just residential or light commercial gear. ## Setting up the protection curves — what the adjustments mean Long-time pickup (Ir) is adjustable from 0.4 to 1.0 x In across nine settings, and the long-time delay (Tr) runs 0.5 to 24 seconds at 6 x Ir, with an accuracy tolerance of 0 to -20%. That negative-only tolerance means the actual trip time will be at or faster than the dial setting — a deliberate safety margin so the breaker clears before the cable insulation reaches its limit. Instantaneous pickup (Ii) adjusts from 1.5 to 10 x Ir, also nine settings, with ±10% accuracy. For a line-down scenario, the nine-position dials let you match the existing coordination study without swapping the entire trip unit. That prevents immediate reclose onto a still-hot conductor — useful on motor feeders where repeated starts can overheat the cable before the breaker's thermal model resets. ## Fault diagnostics and zone selectivity The digital display reports internal fault, overload, short-circuit, and earth fault conditions. That's four distinct fault types visible without a separate communication module — speeds up troubleshooting on a downed line. Zone selective interlocking (ZSI) is built in, so multiple breakers in a cascade can coordinate trip timing without adding external relay logic. Neutral protection is configurable: 3D (no neutral protection), 3D + N/2 (half-rated neutral), or 4D (full neutral protection). The neutral position is left-side, matching the EasyPaw NW breaker's standard bus arrangement. Protected poles can be set to 3D, 4D, or 3D + N/2, giving flexibility for delta or wye systems without a hardware change. ## Mounting and environment — fixed installation in the panel Mounting mode is fixed — this trip unit bolts into the breaker cradle, not a draw-out chassis. Dimensions are 200 mm high, 55 mm wide, 75 mm deep. The 55 mm width matches the standard EasyPact NW pole spacing, so it occupies one pole width on the DIN-rail or panel-mount assembly.","metaTitle":"Schneider Electric ENW21423 EasyPact NW Trip Unit, Trip Syst","metaDescription":"Active Schneider Electric ENW21423 EasyPact NW control unit with Trip System 2.0E, LI protection, 690 V AC, 800-4000 A. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Depth":"75 mm","Width":"55 mm","Height":"200 mm","Display type":"Digital display","Network type":"AC","Mounting mode":"Fixed","Thermal memory":"20 minutes before and after tripping","Trip unit name":"Trip System 2.0E","Protection type":"Instantaneous short-circuit protection Overload protection (long time)","lifecycle_stage":"current","Fault indication":"Internal fault Overload Short-circuit Earth fault","Neutral position":"Left","Range of product":"EasyPact NW","Trip unit rating":"800...4000 A","Network frequency":"50/60 Hz","Poles description":"3P 4P","Type of measurement":"Energy meter","Trip unit technology":"Micro-processor based","Product or component type":"Control unit","Neutral protection setting":"Without protection (3D) 0.5 x Ir (3D + N/2) 1 x Ir (4D)","Circuit breaker application":"Standard Industrial","Protected poles description":"3D 4D 3D + N/2","Trip unit protection functions":"LI","[Ue] rated operational voltage":"690 V AC 50/60 Hz conforming to IEC 60947-2","Long time delay adjustment type":"Adjustable 9 settings","Zone selective interlocking ZSI":"With","Long time pick-up adjustment range":"0.4...1 x In","Ambient air temperature for storage":"-25...85 °C","Long time pick-up adjustment type Ir":"Adjustable 9 settings","Ambient air temperature for operation":"-5...70 °C","[Tr] Long-Time Delay Adjustment Range":"0.5...24 s (6 x Ir), accuracy: 0...- 20 %","Instantaneous pick-up adjustment range":"1.5...10 x Ir, accuracy: +/- 10 %","Instantaneous pick-up adjustment type Ii":"Adjustable 9 settings"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/fcef4fc2515ae20fc08d5c504f184d24.pdf","sourceUrl":"https://www.se.com/ae/en/product/ENW21423/trip-unit-easypact-nw-tse2i-fixed/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ENW21423/alternatives.json"},"ai":{"faq":[{"question":"What is the ENW21423 used for?","answer":"It is a microprocessor-based control unit (trip unit) for the EasyPact NW range of air circuit breakers, providing LI protection — long-time overload and instantaneous short-circuit — for standard industrial applications up to 690 V AC."},{"question":"What is the trip rating range of the ENW21423?","answer":"The trip unit rating is 800 to 4000 A, with long-time pickup adjustable from 0.4 to 1.0 x In and instantaneous pickup from 1.5 to 10 x Ir."},{"question":"What protection functions does the Trip System 2.0E provide?","answer":"It provides LI protection: long-time overload protection with adjustable delay (0.5 to 24 s at 6 x Ir) and instantaneous short-circuit protection (1.5 to 10 x Ir)."},{"question":"Where can I buy the ENW21423 and how is it quoted?","answer":"The ENW21423 is sourced and quoted to order through independent distribution against an RFQ. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ENW21423","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/ENW21423 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}}