{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV433808","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV433808","canonicalUrl":"https://aoctrl.com/schneider/LV433808","factsUrl":"https://aoctrl.com/api/mcp/products/LV433808","rawCanonicalId":null},"summary":{"shortDescription":"trip unit Micrologic 4.2 for Compact NSX 250 circuit breakers, electronic, rating 250A, 4 poles 4d","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Range":"ComPact","Standards":"UL 508 EN 60947-2 IEC 60947-2 NEMA AB1","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 4.2","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 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 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":"4t 3t + N/2 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","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 150 ms 60 ms 1 s 500 ms","[IΔn] earth-leakage protection sensitivity adjustment range":"500 mA 3 A 300 mA 30 mA 1 A 5 A 100 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,311.62","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/550c60cd7cf484b7cfd7cbaa3e4a0fdf.pdf","sourceUrl":"https://www.se.com/hk/en/product/LV433808/trip-unit-micrologic-4-2-for-compact-nsx-250-circuit-breakers-electronic-rating-250a-4-poles-4d/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV433808/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV433808","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/LV433808 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}}