{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839056","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839056","canonicalUrl":"https://aoctrl.com/schneider/LV839056","factsUrl":"https://aoctrl.com/api/mcp/products/LV839056","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Masterpact MTZ3 40 HF, LV839056, switch disconnector, 4000 A, 3P, fixed, ANSI.","salesMarkdown":"The Schneider Electric LV839056 is a Masterpact MTZ3 40 HF switch disconnector rated for 4000 A at 104 °F (40 °C), 3-pole, fixed-mount, designed for distribution applications per ANSI C37.50. The part carries a breaking capacity of 100 kA Icu at 254 V AC 50/60 Hz with an external relay, and 85 kA Icu at 635 V AC — meaning it can safely interrupt fault currents up to those levels without upstream cascading, critical for selectivity studies in large switchboards. The 4000 A rated operational current (Ie) at 40 °C sets the continuous load capacity — sized for high-current feeders or main incomers in industrial or utility distribution. The short-time withstand current (Icw) of 85 kA for 1.5 s per ANSI C37.50 defines the thermal and dynamic stress the switch can handle during a delayed fault clearing; this is the figure coordination engineers use to verify the switch survives downstream breaker clearing time. Dimensions are 30.2 in (767 mm) wide, 13.9 in (352.2 mm) tall, and 11.7 in (297.1 mm) deep — these govern the panel cutout and mounting footprint for fixed-mount installations.","metaTitle":"Schneider Electric LV839056 Masterpact MTZ3 40 HF, 4000A, 3P","metaDescription":"Schneider Electric LV839056 Masterpact MTZ3 40 HF switch disconnector, 4000 A rated, 100 kA breaking capacity at 254 V AC. Active lifecycle. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Depth":"11.7 in (297.1 mm)","Width":"30.2 in (767 mm)","title":"LV839056","Height":"13.9 in (352.2 mm)","description":"Automatic, switch disconnector, Masterpact MTZ3, 40 HF, 4000A, ANSI, 3P, fixed","Control Type":"Push-button","Network type":"AC","Mounting Mode":"Fixed","lifecycle_stage":"current","Connection pitch":"9.06 in (230 mm)","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":"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":"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/fa4dfe950c28f3b1120bc204aee2b02d.pdf","sourceUrl":"https://www.se.com/ca/en/product/LV839056/automatic-switch-disconnector-masterpact-mtz3-40-hf-4000a-ansi-3p-fixed/"},"ai":{"faq":[{"question":"What is the breaking capacity of LV839056?","answer":"The LV839056 has a breaking capacity of 100 kA Icu at 254 V AC 50/60 Hz with an external relay, 100 kA Icu at 508 V AC, and 85 kA Icu at 635 V AC, all per ANSI C37.50."},{"question":"Where can I buy LV839056?","answer":"The LV839056 is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839056","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/LV839056 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}}