{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839059","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839059","canonicalUrl":"https://aoctrl.com/schneider/LV839059","factsUrl":"https://aoctrl.com/api/mcp/products/LV839059","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Masterpact MTZ3 40 HF, LV839059, automatic switch disconnector, 4000A, 4-pole drawout, 100 kA Icu at 254 V AC, ANSI.","salesMarkdown":"The LV839059 is a Schneider Electric Masterpact MTZ3 40 HF automatic switch disconnector. It's a 4000 A drawout unit, 4-pole, built for distribution duty. Rated 4000 A at 104 °F (40 °C) ambient. That's the continuous current it carries without derating — if your switchgear room runs hotter, you'll need to apply the manufacturer's temperature correction. Short-time withstand (Icw) is 85 kA for 1.5 s per ANSI C37.50, which covers the coordination window for downstream breakers to clear. The drawout chassis lets you rack the unit out for maintenance without pulling the main bus.","metaTitle":"LV839059 Masterpact MTZ3 40 HF Switch Disconnector, 4000A, 4","metaDescription":"Schneider Electric LV839059 Masterpact MTZ3 40 HF switch disconnector, 4000A rated at 40°C, 100kA Icu at 254V AC, 4-pole drawout. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Depth":"16.8 in (426.8 mm)","Width":"40.5 in (1028.7 mm)","title":"LV839059","Height":"18.8 in (478.1 mm)","description":"Automatic, switch disconnector, Masterpact MTZ3, 40 HF, 4000A, ANSI, 4P, drawout","Control Type":"Push-button","Network type":"AC","Mounting Mode":"Drawout","lifecycle_stage":"current","Connection pitch":"9.06 in (230 mm)","Mounting Support":"Chassis","Breaking capacity":"100.0 kA Icu 254 V AC 50/60 Hz with external relay ANSI C37.50 100.0 kA Icu 508 V AC 50/60 Hz with external relay ANSI C37.50 85.0 kA Icu 635 V AC 50/60 Hz with external relay ANSI C37.50","Device short name":"MTZ3 40 HF","Network Frequency":"50/60 Hz","Poles description":"4P","Device Application":"Distribution","Nbr. of units in pkg.":"1","Product or Component Type":"Switch disconnector","[Ie] rated operational current":"4000 A 104 °F (40 °C)","[Icw] rated short-time withstand current":"85.0 kA 1.5 s ANSI C37.50"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/523bdfb7d4f138b3e77535c4f4a7aa07.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839059/automatic-switch-disconnector-masterpact-mtz3-40-hf-4000a-ansi-4p-drawout/"},"ai":{"faq":[{"question":"What is LV839059's breaking capacity at 254 V AC?","answer":"The LV839059 is rated 100 kA Icu at 254 V AC 50/60 Hz with an external relay, per ANSI C37.50."},{"question":"What are the overall dimensions of LV839059?","answer":"Width 40.5 in (1028.7 mm), height 18.8 in (478.1 mm), depth 16.8 in (426.8 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839059","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/LV839059 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}