{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839003","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839003","canonicalUrl":"https://aoctrl.com/schneider/LV839003","factsUrl":"https://aoctrl.com/api/mcp/products/LV839003","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Masterpact MTZ3 50 HA, LV839003, non-automatic switch disconnector, 5000 A rated operational current at 40 °C, 65 kA Icu breaking capacity, 4 poles, fixed mounting.","salesMarkdown":"The Schneider Electric LV839003 is a Masterpact MTZ3 50 HA non-automatic switch disconnector — a 4-pole, fixed-mount device rated for 5000 A continuous at 40 °C ambient. That 5000 A figure is the current it can carry without exceeding temperature rise limits in a distribution panel; it is not a switching rating for frequent motor starts. The 65 kA Icu breaking capacity at 254 V, 508 V, and 635 V AC (with external relay, per ANSI C37.50) tells you the maximum fault current it can safely interrupt once — above that, the device may be damaged and needs replacement. The short-time withstand rating of 85 kA for 0.5 s means it can ride through a delayed fault coordination window without failing, which is critical for selective coordination in a switchboard. ## Deployment context This is a fixed-mount switch disconnector for distribution — it goes into a switchboard or panel as a main disconnect or large feeder breaker. The 996.3 mm width and 297.7 mm depth mean it needs a substantial cutout and rear access for the power connections at 230 mm pitch. It is not a DIN-rail device; plan for bolted busbar connections and a lifting fixture during installation.","metaTitle":"Schneider Electric LV839003 Masterpact MTZ3 50 HA, 5000 A, 4","metaDescription":"Schneider Electric LV839003 Masterpact MTZ3 50 HA switch disconnector, 5000 A rated at 40 °C, 65 kA Icu breaking capacity, 4P fixed. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Depth":"11.7 in (297.7 mm)","Width":"39.2 in (996.3 mm)","title":"LV839003","Height":"13.9 in (352.2 mm)","description":"Non-Automatic, switch disconnector, Masterpact MTZ3, 50 HA, 5000A, ANSI, 4P, fixed","Control Type":"Push-button","Network type":"AC","Mounting Mode":"Fixed","lifecycle_stage":"current","Connection pitch":"9.06 in (230 mm)","Breaking capacity":"65.0 kA Icu 254 V AC 50/60 Hz with external relay ANSI C37.50 65.0 kA Icu 508 V AC 50/60 Hz with external relay ANSI C37.50 65.0 kA Icu 635 V AC 50/60 Hz with external relay ANSI C37.50","Device short name":"MTZ3 50 HA","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":"5000 A 104 °F (40 °C)","[Icw] rated short-time withstand current":"85.0 kA 0.5 s ANSI C37.50"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/dcae2b483abfdd201315604aab447219.pdf","sourceUrl":"https://www.se.com/ca/en/product/LV839003/nonautomatic-switch-disconnector-masterpact-mtz3-50-ha-5000a-ansi-4p-fixed/"},"ai":{"faq":[{"question":"What is LV839003's breaking capacity at 508 V AC?","answer":"The LV839003 is rated for 65 kA Icu at 508 V AC 50/60 Hz with an external relay, tested per ANSI C37.50."},{"question":"What are the physical dimensions of LV839003?","answer":"The LV839003 measures 39.2 in (996.3 mm) wide, 13.9 in (352.2 mm) high, and 11.7 in (297.7 mm) deep."},{"question":"Where can I buy LV839003 and what is the lead time?","answer":"The LV839003 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 lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839003","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/LV839003 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}}