{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839317","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839317","canonicalUrl":"https://aoctrl.com/schneider/LV839317","factsUrl":"https://aoctrl.com/api/mcp/products/LV839317","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ3 ANSI circuit breaker, LV839317, 5000 A rated, 3-pole, fixed mount, breaking capacity, 635 VAC, without Micrologic trip unit, with ArcBlok.","salesMarkdown":"The LV839317 is a Schneider Electric MasterPact MTZ3 ANSI power circuit breaker rated for a continuous line current of 5000 A at 40 °C (104 °F) — that's the full-load ampacity the main bus sees, not a thermal derate starting point. The breaking capacity code delivers 200 kA Icu at 254 V AC (60 Hz) and 150 kA Icu at 508 V AC (60 Hz) per ANSI C37.50, meaning it can safely interrupt fault currents up to those levels without upstream cascading. The integral instantaneous protection is set at 243...297 kA, so the breaker clears a bolted fault within 9 ms maximum — fast enough to limit arc-flash energy in most distribution switchgear. This is a 3-pole, fixed-mount unit designed for base plate and rail mounting in ANSI switchgear lineups. The 5000 A CT rating matches the breaker's continuous current, so the protection scheme scales directly. The 100 kA Icw for 0.5 s gives coordination engineers headroom for short-time delay settings in selective tripping schemes. Because the trip unit is not included, the BOM must account for the separate Micrologic order code. This is a common sourcing step for MasterPact breakers — the frame and the trip unit are line items that get paired at assembly. The fixed-mount form factor means it bolts directly into the switchgear bus, not a drawout cassette, so the enclosure cutout and bus connection pitch (9.06 in / 230 mm) need to match the existing lineup. ## Deployment context The ArcBlok technology (included per the description) reduces arc-flash energy during internal faults, which helps lower incident energy levels for maintenance personnel.","metaTitle":"Schneider Electric LV839317 MasterPact MTZ3 5000A 3P Circuit","metaDescription":"Schneider Electric LV839317 MasterPact MTZ3 ANSI circuit breaker, 5000 A rated, 3-pole, fixed mount, L1 breaking capacity (200 kA Icu at 254 V AC). Active production. Quoted on req","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":"LV839317","Height":"18.8 in (478.1 mm)","description":"Circuit breaker, MasterPacT MTZ3, ANSI, max 5000A rated, 3 pole, drawout mount, L1 breaking cap, 635VAC, w/o Micrologic trip unit, w/ ArcBlok","Control Type":"Push-button","Network type":"AC","Product name":"MasterPact MTZ1","Mounting Mode":"Fixed","lifecycle_stage":"current","Connection pitch":"9.06 in (230 mm)","Mounting Support":"Base plate Rails","Device short name":"MTZ3 50 L1","Network Frequency":"50/60 Hz","Performance Level":"200 kA Icu 254 V AC 60 Hz ANSI C37.50 200 kA Icu 508 V AC 60 Hz ANSI C37.50 130 kA Icu 635 V AC 60 Hz ANSI C37.50 200 kA Icu 254 V AC 50 Hz ANSI C37.50 150 kA Icu 508 V AC 50 Hz ANSI C37.50 100 kA Icu 635 V AC 50 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":"9 ms","Mechanical durability":"10000 cycles ANSI C37.50","Nbr. of units in pkg.":"1","Breaking capacity code":"L1","Circuit breaker CT rating":"5000 A","Product or Component Type":"Circuit breaker","Integral instant protection":"243...297 kA","Maximum closing response time":"70 ms","Rated breaking and making capacity":"90 kA","[Icw] rated short-time withstand current":"100 kA 0.5 s ANSI C37.50"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/69fe1699508a9a7f27a96006dbe14a2f.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839317/circuit-breaker-masterpact-mtz3-ansi-max-5000a-rated-3-pole-drawout-mount-l1-breaking-cap-635vac-w-o-micrologic-trip-unit-w-arcblok/"},"ai":{"faq":[{"question":"Where can I buy LV839317 and what is the lead time?","answer":"The LV839317 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 and price."},{"question":"What are the key ratings for LV839317?","answer":"The LV839317 is rated for 5000 A continuous at 40 °C, with an breaking capacity of 200 kA Icu at 254 V AC (60 Hz) per ANSI C37.50. It has a short-time withstand rating (Icw) of 100 kA for 0.5 s and a maximum breaking time of 9 ms."},{"question":"What are the physical dimensions of LV839317?","answer":"The LV839317 measures 16.8 in (426.8 mm) deep, 31.07 in (789.1 mm) wide, and 18.8 in (478.1 mm) high. The connection pitch between phases is 9.06 in (230 mm)."},{"question":"Does LV839317 come with a trip unit?","answer":"No, the LV839317 is supplied without a Micrologic trip unit. The trip unit must be ordered separately and paired with the breaker frame during assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839317","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/LV839317 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}}