{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV433968","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV433968","canonicalUrl":"https://aoctrl.com/schneider/LV433968","factsUrl":"https://aoctrl.com/api/mcp/products/LV433968","rawCanonicalId":null},"summary":{"shortDescription":"Schneider LV433968 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The LV433968 is a MicroLogic 7.3 E AL electronic trip unit for the Schneider ComPact NSX630 molded case circuit breaker, rated 570 A across 4 poles on a 440 V AC network. It provides LSI protection (long-time, short-time, instantaneous) with adjustable pickup and delay ranges, plus integrated earth-leakage protection and an LCD display for energy metering and event logs. The 570 A rating sets the long-time pickup range from 250 A to 570 A, with adjustable short-time delay up to 0.4 s and instantaneous pickup fixed above the short-time setting — sized for distribution feeders where coordination with downstream breakers is required. The 20-minute thermal memory before and after tripping prevents nuisance reclosing on hot conductors, a detail that matters when sequencing automatic reclosures in a distribution panel.","metaTitle":"Schneider LV433968 MicroLogic 7.3 E AL trip unit, 570 A, 4 poles","metaDescription":"Schneider LV433968 MicroLogic 7.3 E AL electronic trip unit for ComPact NSX630: 570 A, 4 poles, 440 V AC, LSI protection, LCD display, adjustable long-time and short-time delays.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Range":"ComPact","Standards":"EN 60947-2 IEC 60947-2 UL 508 NEMA AB1","Display type":"LCD display","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 7.3 E AL","Number of poles":"4P","Protection type":"L : for overload protection (long time) S : for short time short-circuit protection I : for instantaneous short-circuit protection","lifecycle_stage":"mature","Local signalling":"Flashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload","Neutral position":"Left","Pollution degree":"3 conforming to IEC 60947-1","Range of product":"ComPact NSX400...630","Network frequency":"50/60 Hz","Device application":"Distribution","Type of measurement":"Energy meter","Trip unit technology":"Electronic","Communication of data":"Maximeters/minimeters Protection and alarm settings Earth leakage current Maintenance indicators Instantaneous and demand values Energy metering Time-stamped histories and event tables Test reports Demand current and power Power quality","IP degree of protection":"IP40 conforming to IEC 60529","Trip unit rated current":"570 A at 40 °C","Earth-leakage protection":"Integrated","Product or component type":"Trip unit","Neutral protection settings":"0.5 x Ir (3t + N/2) 1 x Ir (4t) 1.6 x Ir (3t + OSN) No protection (3t)","Protected poles description":"4t 3t + N/2 3t 3t + OSN","Earth-leakage protection class":"Class A","Trip unit protection functions":"LSI","[Ue] rated operational voltage":"440 V AC 50/60 Hz","Zone selective interlocking ZSI":"Without","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-25...70 °C","Earth-leakage protection specific mode":"OFF using the IΔn rotary switch","Long-time protection delay adjustment type tr":"Adjustable","Short-time protection delay adjustment type tsd":"Adjustable","[Tr] Long-Time Protection Delay Adjustment Range":"15...400 s at 1.5 x Ir 0.35...11 s at 7.2 x Ir 0.5...16 s at 6 x Ir","Short-time protection pick-up adjustment type Isd":"Adjustable","[Ir] long-time protection pick-up adjustment range":"250...570 A","[tsd] Short-time protection delay adjustment range":"0...0.4 s","Instantaneous protection pick-up adjustment type Ii":"Adjustable","[Isd] Short-time protection pick-up adjustment range":"1.5...10 x Ir","[Ii] instantaneous protection pick-up adjustment range":"1.5...12 x In Compact NSX400 6900 A Compact NSX630","Earth-leakage protection sensitity adjustment type IΔn":"Adjustable","Earth-leakage protection time delay adjustement type Δt":"Adjustable","Long-time pick-up adjustment type Ir (thermal protection)":"Adjustable 9 settings","[Δt] Earth-leakage protection time delay adjustment range":"60 ms 0 ms 1 s 150 ms 500 ms","[IΔn] earth-leakage protection sensitivity adjustment range":"3 A 10 A 5 A 300 mA 500 mA 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2,698.88","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6e75d3df8e8558f7228c2062db639a6d.pdf","sourceUrl":"https://www.se.com/hk/en/product/LV433968/trip-unit-micrologic-7-3-e-al-for-compact-nsx-630-circuit-breakers-electronic-rating-570a-4-poles-4d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV433968/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV433968","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/LV433968 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}