{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839027","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839027","canonicalUrl":"https://aoctrl.com/schneider/LV839027","factsUrl":"https://aoctrl.com/api/mcp/products/LV839027","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ3, LV839027, 3-pole drawout circuit breaker, 4000 A rated at 40 °C, H3 breaking capacity (100 kA Icu at 508 V AC), without Micrologic trip unit.","salesMarkdown":"The LV839027 is a Schneider Electric MasterPact MTZ3 drawout circuit breaker, 3-pole, rated 4000 A at 40 °C, with H3 breaking capacity delivering 100 kA Icu at 508 V AC per ANSI C37.50. It ships without a Micrologic trip unit — the buyer sources the protection relay separately to match the coordination study. The drawout cradle allows the breaker to be racked out for maintenance without disturbing the bus connections, standard for large ANSI switchgear. The H3 frame gives 100 kA Icu at 254 V AC, 100 kA Icu at 508 V AC, and 85 kA Icu at 635 V AC. The rated short-time withstand current (Icw) is 85 kA for 0.5 s, which supports delayed tripping for zone-selective interlocking — critical for coordinating downstream feeders without sacrificing arc-flash energy. The integral instantaneous protection range is 171–209 kA, and the rated breaking and making capacity is 170 kA. Maximum breaking time is 25–30 ms; maximum closing response time is 70 ms. ## Physical integration The drawout chassis mounts on base plate rails. Overall dimensions: width 31.07 in (789.1 mm), height 18.8 in (478.1 mm), depth 16.8 in (426.8 mm) (–). Connection pitch is 9.06 in (230 mm). The breaker is designed for ANSI switchgear lineups — verify the cradle cutout and bus spacing against the existing gear before ordering.","metaTitle":"Schneider Electric MasterPact MTZ3 LV839027, 4000 A, 3P, Dra","metaDescription":"Schneider Electric LV839027 MasterPact MTZ3 circuit breaker, 4000 A rated, 3-pole, drawout mount, H3 breaking capacity (100 kA Icu at 508 V AC). Active production. Sourced to order","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":"LV839027","Height":"18.8 in (478.1 mm)","description":"Circuit breaker, MasterPacT MTZ3, ANSI, max 4000A rated, 3 pole, drawout mount, H3 breaking cap, 635VAC, w/o Micrologic trip unit","Control Type":"Push-button","Network type":"AC","Product name":"MasterPact MTZ3","Mounting Mode":"Drawout","lifecycle_stage":"current","Connection pitch":"9.06 in (230 mm)","Mounting Support":"Base plate Rails","Device short name":"MTZ3 40 H3","Network Frequency":"50/60 Hz","Performance Level":"100 kA Icu 254 V AC 50/60 Hz ANSI C37.50 100 kA Icu 508 V AC 50/60 Hz ANSI C37.50 85 kA Icu 635 V AC 50/60 Hz ANSI C37.50","Poles description":"3P","Device Application":"Protection","Line Rated Current":"4000 A 104 °F (40 °C)","Electrical durability":"1000 cycles ANSI C37.50","Maximum breaking time":"25...30 ms","Mechanical durability":"10000 cycles ANSI C37.50","Nbr. of units in pkg.":"1","Breaking capacity code":"H3","Circuit breaker CT rating":"4000 A","Product or Component Type":"Circuit breaker","Integral instant protection":"171...209 kA","Maximum closing response time":"70 ms","Rated breaking and making capacity":"170 kA","[Icw] rated short-time withstand current":"85 kA 0.5 s ANSI C37.50"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ae2e4e4e4a53986c7bbf9685bd2592aa.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839027/circuit-breaker-masterpact-mtz3-ansi-max-4000a-rated-3-pole-drawout-mount-h3-breaking-cap-635vac-w-o-micrologic-trip-unit/"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LV839027?","answer":"Pricing and availability are confirmed at quote time against an RFQ. Submit a request with the desired quantity and any required accessories (trip unit, shunt trip, etc.) for a current quote."},{"question":"What is the closest alternative to LV839027 in the MasterPact MTZ3 family?","answer":"The LV839027 is the 4000 A, 3-pole, H3 breaking capacity variant without a Micrologic trip unit. A pin-compatible alternative would be the same frame with a different rating (e.g., 3200 A or 5000 A) or a different breaking capacity code (H1, H2). The drawout cradle and physical footprint are shared across the MTZ3 range, but the trip unit selection and protection settings must match the application."},{"question":"What compliance documentation does Schneider Electric provide for LV839027?","answer":"The MasterPact MTZ3 series carries UL, CSA, and ANSI certifications per the ANSI C37.50 standard cited in the ratings. The specific documentation package (RoHS, REACH, UL file number) is provided with the shipment or available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839027","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/LV839027 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}}