{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839308","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839308","canonicalUrl":"https://aoctrl.com/schneider/LV839308","factsUrl":"https://aoctrl.com/api/mcp/products/LV839308","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ3, LV839308, 3-pole drawout ANSI circuit breaker, 5000 A rated current, H2 breaking capacity (85 kA Icu at 508 VAC), 635 VAC, without Micrologic trip unit, with ArcBlok.","salesMarkdown":"The LV839308 is a MasterPact MTZ3 drawout circuit breaker rated 5000 A continuous at 40 °C — that's the full-frame current, not a derated number, so it handles a 5000 A bus without forced cooling. The H2 breaking capacity code delivers 85 kA Icu at 508 VAC (per ANSI C37.50), which covers most industrial secondary-distribution fault levels in North America. The 170 kA rated breaking and making capacity tells you it can close into and interrupt a bolted fault at that level, critical for coordination studies. The 85 kA short-time withstand (Icw) for 0.5 s means it holds through delayed trips downstream — selectivity headroom for a multi-level distribution scheme. ## Deployment context Drawout mounting on base plate rails means the breaker slides into a fixed cradle — no bolted bus connections to torque. That cuts swap time during maintenance or fault replacement to minutes, not hours. The 3-pole configuration suits 3-phase AC distribution in switchgear lineups. The 50/60 Hz network frequency covers both 60 Hz North American and 50 Hz global installations without a de-rate.","metaTitle":"LV839308 MasterPact MTZ3 3P Drawout 5000A H2 635VAC Circuit","metaDescription":"LV839308 MasterPact MTZ3 ANSI circuit breaker, 3-pole drawout, 5000 A rated, H2 breaking capacity (85 kA Icu at 508 VAC), 635 VAC, without Micrologic trip unit. Active production.","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":"LV839308","Height":"18.8 in (478.1 mm)","description":"Circuit breaker, MasterPacT MTZ3, ANSI, max 5000A rated, 3 pole, drawout mount, H2 breaking cap, 635VAC, w/o Micrologic trip unit, w/ ArcBlok","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 H2","Network Frequency":"50/60 Hz","Performance Level":"85 kA Icu 254 V AC 50/60 Hz ANSI C37.50 85 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":"5000 A 104 °F (40 °C)","Electrical durability":"2800 cycles ANSI C37.50","Maximum breaking time":"25...30 ms","Mechanical durability":"12500 cycles ANSI C37.50","Nbr. of units in pkg.":"1","Breaking capacity code":"H2","Circuit breaker CT rating":"5000 A","Product or Component Type":"Circuit breaker","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/08ee7dcd7d09a53e5b4346e2b846d347.pdf","sourceUrl":"https://www.se.com/ca/en/product/LV839308/circuit-breaker-masterpact-mtz3-ansi-max-5000a-rated-3-pole-drawout-mount-h2-breaking-cap-635vac-w-o-micrologic-trip-unit-w-arcblok/"},"ai":{"faq":[{"question":"What is the closest alternative to LV839308 in the MasterPact MTZ3 family?","answer":"The LV839308 is the 3-pole drawout 5000 A H2 variant without a Micrologic trip unit. The closest sibling would be the same frame with a different breaking capacity code (H1 or H3) or with an integrated trip unit — but the H2 code and bare-breaker configuration are specific to this order code. No pin-compatible alternative exists within the same frame; the trip unit is ordered separately."},{"question":"What compliance documentation does Schneider Electric provide for LV839308?","answer":"The evidence does not list specific compliance documents (RoHS, REACH, UL, IEC) for this order code. The breaker is designed to ANSI C37.50 standards as stated in the performance ratings. For full compliance declarations, request the manufacturer's documentation at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839308","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/LV839308 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}}