{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839090","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839090","canonicalUrl":"https://aoctrl.com/schneider/LV839090","factsUrl":"https://aoctrl.com/api/mcp/products/LV839090","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric Masterpact MTZ3 40 HC, switch disconnector, LV839090, 4000 A rated, 3P, fixed, 200 kA Icu at 254 V AC.","salesMarkdown":"The Schneider Electric LV839090 is a Masterpact MTZ3 40 HC switch disconnector rated 4000 A at 104 °F (40 °C), 3-pole, fixed-mounted, intended for distribution applications. At 508 V AC the same configuration delivers 200 kA Icu, and at 635 V AC it holds 130 kA Icu, so the part handles the full low-voltage range common in North American industrial plants. The 4000 A rated operational current (Ie) governs the continuous load it can carry — sized for a main feeder or large bus riser in a 480 V distribution switchboard. The 100 kA short-time withstand current (Icw) for 1.5 s per ANSI C37.50 tells you the breaker can pass that fault current without damage while downstream devices clear, supporting selective coordination schemes. Fixed mounting and push-button control suit it for drawout-free installations where the breaker stays bolted in place and is operated locally. At 30.2 in (767 mm) wide, 13.9 in (352.2 mm) high, and 11.7 in (297.7 mm) deep, the LV839090 occupies a substantial footprint — plan for a dedicated compartment in the switchgear lineup. The 9.06 in (230 mm) connection pitch sets the bus-bar or cable landing spacing. Fixed mounting means the breaker does not require a drawout cradle, saving some enclosure depth but requiring direct wiring access.","metaTitle":"Schneider Electric LV839090 Masterpact MTZ3 40 HC, 4000A, 3P","metaDescription":"Schneider Electric LV839090 Masterpact MTZ3 40 HC switch disconnector, 4000A rated, 200 kA breaking capacity at 254 V AC, 3-pole, fixed mount. Active production. Sourced to order a","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":"30.2 in (767 mm)","title":"LV839090","Height":"13.9 in (352.2 mm)","description":"Automatic, switch disconnector, Masterpact MTZ3, 40 HC, 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":"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/93e0a8286ec4bae05500c9e1718ff24a.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839090/automatic-switch-disconnector-masterpact-mtz3-40-hc-4000a-ansi-3p-fixed/"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LV839090?","answer":"Pricing and availability are confirmed at quote time against an RFQ through independent distribution. Submit an RFQ for a current quote and lead-time estimate."},{"question":"What is LV839090's breaking capacity at 254 V AC?","answer":"The LV839090 delivers 200 kA Icu at 254 V AC 50/60 Hz with an external relay per ANSI C37.50, and 200 kA Icu at 508 V AC, 130 kA Icu at 635 V AC under the same conditions."},{"question":"What are the physical dimensions of LV839090?","answer":"The LV839090 measures 30.2 in (767 mm) wide, 13.9 in (352.2 mm) high, and 11.7 in (297.7 mm) deep, with a connection pitch of 9.06 in (230 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839090","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/LV839090 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}}