{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"C4042D250","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"C4042D250","canonicalUrl":"https://aoctrl.com/schneider/C4042D250","factsUrl":"https://aoctrl.com/api/mcp/products/C4042D250","rawCanonicalId":null},"summary":{"shortDescription":"Schneider C4042D250 Compact Nsx, New Generation — now discontinued, supplied from remaining surplus and broker stock.","salesMarkdown":"## Overview The C4042D250 is a MicroLogic 2.3 electronic trip unit for the Schneider ComPacT NSX400 and NSX630 circuit breaker frames, rated 250 A at 40 °C with 4 poles (4d) and LSoI protection — long-time, short-time, and instantaneous. It is a fixed-mount, Class II device compliant with EN/IEC 60947-2. Schneider discontinued the C4042D250 on 2024-12-01. Send an RFQ to confirm quantity and lead time for line-down or last-time-buy needs.","metaTitle":"Schneider C4042D250 MicroLogic 2.3 trip unit, 250 A, 4-pole (discontinued)","metaDescription":"Schneider C4042D250 MicroLogic 2.3 electronic trip unit for ComPacT NSX400/630, 250 A, 4 poles, LSoI protection, EN/IEC 60947-2. Discontinued since 2024-12-01; source via surplus.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Range":"ComPacT","Standards":"EN/IEC 60947-2","Network type":"AC","Thermal memory":"20 minutes before and after tripping","Trip unit name":"MicroLogic 2.3","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":"current","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 NSX400...630","Trip unit rating":"250 A at 40 °C","Network frequency":"50/60 Hz","Poles description":"4P","Device application":"Distribution","Trip unit technology":"Electronic","IP degree of protection":"IP40 conforming to IEC 60529","Earth-leakage protection":"Without","Product or component type":"Trip unit","Neutral protection settings":"0.5 x Ir (3D + N/2) 1 x Ir (4D) No protection (3D)","Protected poles description":"3D + N/2 4D 3D","Circuit breaker mounting mode":"Fixed","Trip unit protection functions":"LSoI","[Ue] rated operational voltage":"690 V AC 50/60 Hz","Zone selective interlocking ZSI":"Without","Electrical shock protection class":"Class II","Ambient air temperature for storage":"-50...85 °C","Ambient air temperature for operation":"-25...70 °C","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 9 settings","[Ir] long-time protection pick-up adjustment range":"70...250 A","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","Long-time pick-up adjustment type Ir (thermal protection)":"Adjustable 9 settings"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$360.83 – $582.14","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e5f5a6d14619a8d74a91b88bd76d5647.pdf","sourceUrl":"https://www.se.com/ae/en/product/C4042D250/trip-unit-micrologic-2-3-for-compact-nsx-400-630-circuit-breakers-electronic-rating-250a-4-poles-4d/"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/C4042D250","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/C4042D250 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}