{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV433960","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV433960","canonicalUrl":"https://aoctrl.com/schneider/LV433960","factsUrl":"https://aoctrl.com/api/mcp/products/LV433960","rawCanonicalId":null},"summary":{"shortDescription":"Schneider LV433960 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The LV433960 is a MicroLogic 4.3 AL electronic trip unit for the Schneider ComPact NSX400 and NSX630 molded-case circuit breakers, rated 400 A with 3 poles and LSoI protection (long-time, short-time with fixed delay, instantaneous). It carries integrated earth-leakage protection, adjustable short-time pickup (Isd), and a fixed long-time delay curve with a 20-minute thermal memory before and after tripping. Schneider discontinued the LV433960 on 2023-05-02; it is no longer in active production. Remaining units are available through surplus and broker channels only. For a line-down or last-time-buy requirement, an RFQ confirms actual quantity and lead time from our multi-source network. Compared to the LV433808, which is a 4-pole 250 A MicroLogic 4.3 AL trip unit, the LV433960 carries 3 poles and a 400 A rating. The LV433808 suits a 4-wire distribution panel at lower current; the LV433960 fits a 3-pole 400 A bus.","metaTitle":"Schneider LV433960 MicroLogic 4.3 AL trip unit, 400 A, 3-pole, discontinued","metaDescription":"Schneider LV433960 MicroLogic 4.3 AL electronic trip unit for ComPact NSX400/630 breakers, 400 A, 3-pole, LSoI protection, discontinued since 2023-05-02. Surplus sourcing via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":[],"specifications":{"Range":"ComPact","Standards":"EN 60947-2 IEC 60947-2 UL 508 NEMA AB1","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.3 AL","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","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":"400 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":"LSoI","[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":"160...400 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":"4800 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":"150 ms 1 s 0 ms 500 ms 60 ms","[IΔn] earth-leakage protection sensitivity adjustment range":"300 mA 3 A 500 mA 1 A 5 A 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,506.05","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bac2e63dc845211bb644b4202497b8e6.pdf","sourceUrl":"https://www.se.com/au/en/product/LV433960/trip-unit-micrologic-4-3-al-for-compact-nsx-400-630-circuit-breakers-electronic-rating-400a-3-poles-3d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV433960/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV433960","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/LV433960 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}}