{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839091","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839091","canonicalUrl":"https://aoctrl.com/schneider/LV839091","factsUrl":"https://aoctrl.com/api/mcp/products/LV839091","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Masterpact MTZ3 40 HC, LV839091, 4000A switch disconnector, 3-pole, drawout, 200 kA Icu at 254 V AC.","salesMarkdown":"The LV839091 is a Masterpact MTZ3 40 HC automatic switch disconnector from Schneider Electric, rated for 4000 A at 40 °C in a 3-pole drawout chassis configuration. It's built for main distribution in large industrial and commercial power systems where you need a single device that can both switch and isolate the incoming feed. Breaking capacity is 200.0 kA Icu at 254 V AC and 508 V AC, and 130.0 kA Icu at 635 V AC, per ANSI C37.50 with an external relay. The short-time withstand rating is 100 kA for 1.5 seconds (ANSI C37.50), which tells you this device can ride through a delayed trip coordination window — important for selective coordination downstream where you want the feeder breaker to clear first. This is a drawout chassis unit, so the moving portion (the breaker itself) slides in and out of a fixed cradle. That's a big deal for maintenance — you can rack the unit out for inspection or replacement without disconnecting the main power cables. It mounts on a chassis support, not a DIN rail, so plan for a dedicated cubicle or switchgear lineup. Dimensions: 31.07 in wide, 18.8 in tall, 16.8 in deep. The connection pitch is 9.06 in. That's a large footprint — make sure your enclosure or switchgear bay has the clearance, especially for the drawout travel path.","metaTitle":"Schneider Electric LV839091 Masterpact MTZ3 40 HC, 4000A Dra","metaDescription":"Schneider Electric LV839091 Masterpact MTZ3 40 HC switch disconnector, 4000 A at 40 °C, 200 kA Icu at 254 V AC. Active, available to order. Request a quote.","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":"LV839091","Height":"18.8 in (478.1 mm)","description":"Automatic, switch disconnector, Masterpact MTZ3, 40 HC, 4000A, ANSI, 3P, 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":"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/5d1bdfac60e859a4c60e2856d765d843.pdf","sourceUrl":"https://www.se.com/ca/en/product/LV839091/automatic-switch-disconnector-masterpact-mtz3-40-hc-4000a-ansi-3p-drawout/"},"ai":{"faq":[{"question":"What is LV839091's listed depth?","answer":"The LV839091 has a depth of 16.8 inches (426.8 mm). This is the chassis depth; factor in additional clearance for the drawout racking mechanism and cable bends."},{"question":"What compliance documentation does Schneider provide for LV839091?","answer":"The LV839091 is designed to ANSI C37.50 standards for its breaking capacity and short-time withstand ratings. For specific compliance documentation (UL, RoHS, REACH), consult the product datasheet or request it with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839091","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/LV839091 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}}