{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839031","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839031","canonicalUrl":"https://aoctrl.com/schneider/LV839031","factsUrl":"https://aoctrl.com/api/mcp/products/LV839031","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ3 ANSI circuit breaker, LV839031, 3-pole drawout, 5000 A rated at 40 °C, H3 breaking capacity (100 kA Icu at 508 V), without Micrologic trip unit.","salesMarkdown":"The LV839031 is a Schneider Electric MasterPact MTZ3 ANSI power circuit breaker, rated 5000 A at 40 °C, 3-pole, drawout-mounted, with H3 breaking capacity code. It is built for main or feeder protection in 635 VAC switchgear, delivering 100 kA Icu at 508 VAC and 85 kA Icu at 635 VAC per ANSI C37.50. This variant ships without a Micrologic trip unit — you select and install the protection relay separately, matching the trip curve to your coordination study. ## Breaking performance and selectivity headroom The H3 breaking capacity code on this MTZ3 50 H3 means 100 kA Icu at 254 VAC and 508 VAC, and 85 kA Icu at 635 VAC — all per ANSI C37.50. That puts it in the high-interrupting tier for industrial switchgear where fault currents exceed 65 kA. The rated short-time withstand (Icw) is 85 kA for 0.5 s, which supports delayed-tripping coordination downstream without the breaker sacrificing itself during a through-fault. Integral instantaneous protection triggers between 171 and 209 kA, a narrow band that avoids nuisance trips on motor-start inrush while still clearing a bolted fault fast. ## Physical footprint and drawout integration At 31.07 in wide, 18.8 in tall, and 16.8 in deep, this drawout breaker occupies a full cubicle compartment in standard ANSI switchgear. The drawout mechanism (racked in/out without unbolting power conductors) lets you isolate the breaker for maintenance or replacement while the bus remains live — critical for continuous-process plants where a full bus outage is unacceptable. Mounting support is base plate rails; connection pitch is 9.06 in (230 mm) between phases. Plan for a dedicated compartment with rear-accessible primary disconnects and a separate control wiring trough for the trip unit interface. Electrical durability is 2800 cycles under ANSI C37.50, and mechanical durability is 12500 cycles; that is a maintenance-cycle breaker, not a daily-switching device. The 25 to 30 ms maximum breaking time means it clears a fault within 3 cycles at 60 Hz, fast enough to limit let-through energy on downstream equipment. Maximum closing response is 70 ms, which matters when synchronizing with auto-transfer schemes.","metaTitle":"Schneider Electric LV839031 MasterPact MTZ3, 5000 A, 3P Draw","metaDescription":"Schneider Electric LV839031 MasterPact MTZ3 ANSI circuit breaker, 5000 A rated at 40 °C, 3-pole drawout, H3 breaking capacity (100 kA Icu at 508 V). Active production. Quoted to or","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":"LV839031","Height":"18.8 in (478.1 mm)","description":"Circuit breaker, MasterPacT MTZ3, ANSI, max 5000A 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 50 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":"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":"H3","Circuit breaker CT rating":"5000 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/c5c44d640e2e52d3d6c0d3d68f832678.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839031/circuit-breaker-masterpact-mtz3-ansi-max-5000a-rated-3-pole-drawout-mount-h3-breaking-cap-635vac-w-o-micrologic-trip-unit/"},"ai":{"faq":[{"question":"Who supplies LV839031 and how is it quoted for volume purchases?","answer":"The LV839031 is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is LV839031's listed depth?","answer":"The LV839031 has a depth of 16.8 in (426.8 mm)."},{"question":"What is LV839031's listed width?","answer":"The LV839031 has a width of 31.07 in (789.1 mm)."},{"question":"What compliance documentation does this brand provide for LV839031?","answer":"Schneider Electric provides compliance documentation including UL listing, CSA certification, and CE marking for the MasterPact MTZ3 series; specific declarations for LV839031 are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839031","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/LV839031 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}}