{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV433882","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV433882","canonicalUrl":"https://aoctrl.com/schneider/LV433882","factsUrl":"https://aoctrl.com/api/mcp/products/LV433882","rawCanonicalId":null},"summary":{"shortDescription":"Schneider LV433882 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The LV433882 is a Schneider MicroLogic 7.2 E electronic trip unit for the ComPact NSX250 frame, rated 250 A and wired for 4-pole (3 phases plus neutral left) distribution duty. It delivers LSIR protection — long-time, short-time, instantaneous, and earth-leakage — with adjustable long-time pickup from 100 to 250 A and short-time delay from 0 to 0.4 s. The long-time pickup range (100 to 250 A) lets you set the trip unit to match the cable or load, not just the breaker frame. The short-time delay (0 to 0.4 s) gives selectivity headroom downstream — set it above the downstream breaker's clearing time. Compared to the LV433806, which is a 100 A, 3-pole MicroLogic 7.2 E with a fixed long-time delay, the LV433882 carries 250 A on 4 poles with fully adjustable Tr and Tsd — the right choice when the panel requires 4-wire distribution and coordination flexibility.","metaTitle":"Schneider LV433882 MicroLogic 7.2 E trip unit, 250 A, 4-pole","metaDescription":"Schneider LV433882 MicroLogic 7.2 E electronic trip unit for ComPact NSX250: 250 A, 4-pole, LSIR protection, adjustable long-time and short-time delays, earth-leakage integrated.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Range":"ComPact","Standards":"UL 508 IEC 60947-2 NEMA AB1 EN 60947-2","Display type":"LCD display","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 7.2 E","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 R : for earth-leakage 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 NSX100...250","Network frequency":"50/60 Hz","Device application":"Distribution","Type of measurement":"Energy meter","Trip unit technology":"Electronic","Communication of data":"Energy metering Demand current and power Protection and alarm settings Instantaneous and demand values Time-stamped histories and event tables Maximeters/minimeters Maintenance indicators Earth leakage current Test reports Power quality","IP degree of protection":"IP40 conforming to IEC 60529","Trip unit rated current":"250 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 3t + N/2 3t + OSN","Earth-leakage protection class":"Class A","Trip unit protection functions":"LSIR","[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":"100...250 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":"3000 A","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 500 ms 150 ms 1 s","[IΔn] earth-leakage protection sensitivity adjustment range":"30 mA 300 mA 5 A 1 A 3 A 500 mA 100 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2,128.38","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8e45c9058b3d0ee98194abb87cc054d6.pdf","sourceUrl":"https://www.se.com/uk/en/product/LV433882/trip-unit-micrologic-7-2-e-for-compact-nsx-250-circuit-breakers-electronic-rating-250a-4-poles-4d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV433882/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV433882","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/LV433882 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}}