{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ENW21422","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"ENW21422","canonicalUrl":"https://aoctrl.com/schneider/ENW21422","factsUrl":"https://aoctrl.com/api/mcp/products/ENW21422","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric EasyPact NW, Trip System 2.0A, control unit, LI protection, 800-4000 A, 690 V AC, fixed mounting.","salesMarkdown":"## What this trip unit does on the line The ENW21422 is the brains for an EasyPact NW air circuit breaker — the Trip System 2.0A control unit that decides when to hold and when to trip. It covers the 800 to 4000 A range at 690 V AC, with LI protection: overload (long-time) and instantaneous short-circuit. That means you get adjustable long-time pickup from 0.4 to 1 x In and instantaneous pickup from 1.5 to 10 x Ir, both with nine settings each. The long-time delay stretches from 0.5 to 24 seconds at 6 x Ir, so you can shape the curve for coordination downstream. ## Field diagnostics that save a midnight call This unit has a digital display and fault indication for short-circuit, internal fault, overload, and earth fault. It measures instantaneous current on all three phases plus neutral, 0.2 to 1.2 In with ±1.5% accuracy, and logs maximum current the same way. That means when a line drops, you walk up and read the last fault — no laptop needed. ## Selectivity and coordination Zone selective interlocking (ZSI) is built in. That lets multiple breakers in a cascade communicate during a fault — the downstream breaker clears the fault instantly without waiting for the upstream unit to time out, while a fault between breakers still gets full coordination. For standard industrial applications, this is what keeps a single feeder fault from taking out the whole switchboard. Neutral protection is configurable: 3D (no neutral protection), 3D + N/2 (half-rated neutral), or 4D (full neutral protection). Poles description covers 3P and 4P configurations.","metaTitle":"Schneider Electric ENW21422 Trip Unit, EasyPact NW, 800-4000","metaDescription":"Schneider Electric ENW21422 Trip System 2.0A control unit for EasyPact NW. LI protection, 690 V AC, 800-4000 A rating, ZSI. Active production. Quoted to order.","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 2.0A","Protection type":"Overload protection (long time) Instantaneous short-circuit protection","lifecycle_stage":"current","Fault indication":"Short-circuit Internal fault Overload 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":"Instantaneous current (I1, I2, I3, In), range: 0.2...1.2 In, accuracy: +/- 1.5 % Maximum current (I1, I2, I3, In), range: 0.2...1.2 In, accuracy: +/- 1.5 %","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 + N/2 4D 3D","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/0693973940944a255110643e046adab0.pdf","sourceUrl":"https://www.se.com/in/en/product/ENW21422/trip-unit-easypact-nw-tsa2i-fixed/","alternativesUrl":"https://aoctrl.com/api/mcp/products/ENW21422/alternatives.json"},"ai":{"faq":[{"question":"What is ENW21422's trip unit rating?","answer":"The Trip System 2.0A control unit covers 800 to 4000 A, adjustable via long-time pickup from 0.4 to 1 x In and instantaneous pickup from 1.5 to 10 x Ir."},{"question":"Where can I buy ENW21422?","answer":"The ENW21422 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."},{"question":"What protection functions does ENW21422 provide?","answer":"LI protection: overload (long-time) and instantaneous short-circuit. Long-time delay is adjustable 0.5 to 24 s at 6 x Ir; instantaneous pickup is adjustable 1.5 to 10 x Ir."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/ENW21422","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/ENW21422 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}}