{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV433892","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV433892","canonicalUrl":"https://aoctrl.com/schneider/LV433892","factsUrl":"https://aoctrl.com/api/mcp/products/LV433892","rawCanonicalId":null},"summary":{"shortDescription":"Schneider LV433892 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The LV433892 is a MicroLogic 4.2 AL electronic trip unit for the Schneider ComPact NSX250 molded-case breaker, rated 250 A continuous on a 440 V AC distribution network with LSoI protection functions. It carries a 4-pole frame with neutral on the left, integrated earth-leakage protection, and a fixed long-time delay curve that trips at 11 s at 7.2 x Ir. The closest functional sibling is the LV433808, a 3-pole version of the same MicroLogic 4.2 AL trip unit also rated 250 A at 440 V AC. The LV433892 adds a fourth pole for 3-phase-plus-neutral distribution panels where the neutral must be switched and protected; the LV433808 fits 3-pole-only boards without rewiring the breaker frame.","metaTitle":"Schneider LV433892 MicroLogic 4.2 AL trip unit, 250 A, 4-pole, discontinued","metaDescription":"Schneider LV433892 MicroLogic 4.2 AL electronic trip unit for ComPact NSX250, 250 A, 4-pole, 440 V AC, distribution application, discontinued since 2021.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Range":"ComPact","Standards":"NEMA AB1 EN 60947-2 IEC 60947-2 UL 508","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.2 AL","Number of poles":"4P","Protection type":"L : for overload protection (long time) So : for short time short-circuit protection with fixed delay 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 Color indicator (yellow) for residual current","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","Trip unit technology":"Electronic","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) No protection (3t)","Protected poles description":"3t 3t + N/2 4t","Earth-leakage protection class":"Class A","Trip unit protection functions":"LSoI","[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":"Fixed","Short-time protection delay adjustment type tsd":"Fixed","[Tr] Long-Time Protection Delay Adjustment Range":"11 s at 7.2 x Ir 16 s at 6 x Ir 400 s at 1.5 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":"0.02 s","Instantaneous protection pick-up adjustment type Ii":"Fixed","[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":"0 ms 500 ms 150 ms 60 ms 1 s","[IΔn] earth-leakage protection sensitivity adjustment range":"5 A 300 mA 100 mA 500 mA 30 mA 1 A 3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,311.62","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cd8a7764d0e25a282d9a59cb5a1481ee.pdf","sourceUrl":"https://www.se.com/eg/en/product/LV433892/trip-unit-micrologic-4-2-al-for-compact-nsx-250-circuit-breakers-electronic-rating-250a-4-poles-4d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV433892/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV433892","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/LV433892 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}}