{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839319","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839319","canonicalUrl":"https://aoctrl.com/schneider/LV839319","factsUrl":"https://aoctrl.com/api/mcp/products/LV839319","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Masterpact MTZ3 40 HC, LV839319, switch disconnector, 4000 A, 3P, drawout, ArcBlok, 200 kA Icu at 254 V AC.","salesMarkdown":"The LV839319 is a Masterpact MTZ3 40 HC switch disconnector rated 4000 A at 104 °F (40 °C) — that is the continuous current it carries without derating in a typical 40 °C switchroom. The 200.0 kA Icu at 254 V AC (with external relay, per ANSI C37.50) tells you it can safely interrupt a fault up to that level without blowing apart; the same unit also carries 200.0 kA Icu at 508 V AC and 130.0 kA Icu at 635 V AC. The 100.0 kA short-time withstand (Icw) for 1.5 s per ANSI C37.50 means it holds its closed position under fault current long enough for downstream breakers to clear — selectivity coordination. The drawout chassis lets you rack the unit out for maintenance without unbolting line and load conductors, which is standard for large air breakers in metal-clad switchgear. ## Deployment context This is a 3-pole drawout-mounted chassis unit for distribution applications. It goes into a switchgear lineup — ANSI metal-clad or metal-enclosed — not a standalone enclosure. The 31.07 in width, 18.8 in height, and 16.8 in depth are the cell dimensions you need for the cubicle cutout and racking mechanism. Connection pitch is 9.06 in for the primary stabs.","metaTitle":"LV839319 Masterpact MTZ3 40 HC 4000A 3P Drawout Switch Disco","metaDescription":"LV839319 Masterpact MTZ3 40 HC switch disconnector, 4000A at 40°C, 200kA Icu at 254V AC, 3P drawout. Active production. Quoted to order against RFQ.","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":"31.07 in (789.1 mm)","title":"LV839319","Height":"18.8 in (478.1 mm)","description":"Automatic, switch disconnector, Masterpact MTZ3, 40 HC, 4000A, ANSI, 3P, drawout, ArcBlok","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":"200.0 kA Icu 254 V AC 50/60 Hz with external relay ANSI C37.50 200.0 kA Icu 508 V AC 50/60 Hz with external relay ANSI C37.50 130.0 kA Icu 635 V AC 50/60 Hz with external relay ANSI C37.50","Device short name":"MTZ3 40 HC","Network Frequency":"50/60 Hz","Poles description":"3P","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":"100.0 kA 1.5 s ANSI C37.50"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5cdccee2ab776da5ce7ba84a85277718.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839319/automatic-switch-disconnector-masterpact-mtz3-40-hc-4000a-ansi-3p-drawout-arcblok/"},"ai":{"faq":[{"question":"What is the breaking capacity of LV839319?","answer":"The LV839319 carries 200.0 kA Icu at 254 V AC, 200.0 kA Icu at 508 V AC, and 130.0 kA Icu at 635 V AC, all with external relay per ANSI C37.50. Short-time withstand (Icw) is 100.0 kA for 1.5 s."},{"question":"Where can I buy LV839319 and get current pricing?","answer":"The LV839319 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839319","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/LV839319 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}}