{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV433931","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV433931","canonicalUrl":"https://aoctrl.com/schneider/LV433931","factsUrl":"https://aoctrl.com/api/mcp/products/LV433931","rawCanonicalId":null},"summary":{"shortDescription":"Schneider LV433931 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The LV433931 is a MicroLogic 4.3 electronic trip unit for the Schneider ComPact NSX630 molded-case circuit breaker, rated 570 A on a 3-pole frame with LSoIR protection (long-time, short-time, instantaneous, earth-leakage). It operates on a 440 V AC, 60 Hz network and carries CCC, EAC, and CB certifications. The Ir pickup adjusts from 250 to 570 A; the Tsd delay is fixed at 0.02 s. Schneider discontinued the LV433931 on 2023-03-09. An RFQ confirms available quantity and lead time.","metaTitle":"Schneider LV433931 MicroLogic 4.3 trip unit, 570 A, 3-pole (discontinued)","metaDescription":"Schneider LV433931 MicroLogic 4.3 electronic trip unit for ComPact NSX630, 570 A, 3-pole, LSoIR protection, discontinued since 2023-03-09. Sourced via surplus.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Range":"ComPact","Standards":"EN 60947-2 NEMA AB1 IEC 60947-2 UL 508","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.3","Number of poles":"3P","Protection type":"L : for overload protection (long time) So : for short time short-circuit protection with fixed delay 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 Color indicator (yellow) for residual current","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","Trip unit technology":"Electronic","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","Protected poles description":"3t","Earth-leakage protection class":"Class A","Trip unit protection functions":"LSoIR","[Ue] rated operational voltage":"440 V AC 50/60 Hz","Zone selective interlocking ZSI":"Without","Electrical shock protection class":"Class II","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":"250...570 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":"6900 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 150 ms 500 ms 1 s","[IΔn] earth-leakage protection sensitivity adjustment range":"10 A 300 mA 5 A 1 A 3 A 500 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,556.22","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0423ba9a77f59c552fb88261e11a1cda.pdf","sourceUrl":"https://www.se.com/au/en/product/LV433931/trip-unit-micrologic-4-3-for-compact-nsx-630-circuit-breakers-electronic-rating-570a-3-poles-3d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV433931/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV433931","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/LV433931 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}}