{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839112","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839112","canonicalUrl":"https://aoctrl.com/schneider/LV839112","factsUrl":"https://aoctrl.com/api/mcp/products/LV839112","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ1, LV839112, 1600 A rated, 3-pole, fixed-mount circuit breaker, H breaking capacity, 600 VAC, without Micrologic trip unit.","salesMarkdown":"The Schneider Electric LV839112 is a MasterPact MTZ1 frame circuit breaker — UL 489 listed, 1600 A continuous at 40 °C, three-pole, fixed-mounted, with an H breaking capacity code. It ships without a Micrologic trip unit, so the buyer selects the protection curve separately. This is the bare frame and mechanism, intended for switchboard builders who integrate their own trip package. The interrupting ratings under UL 489 are 65 kA Icu at 240 V AC, 50 kA Icu at 480 V AC, and 50 kA Icu at 600 V AC — these are the fault-clearing limits the breaker guarantees at those voltages. The H code means it sits in the middle of the MTZ1 breaking range, above the standard (S) and below the extreme (L) tier, sized for most commercial and industrial distribution panels where 50–65 kA available fault current is the ceiling. ## Durability and coordination data Mechanical endurance is 10,000 cycles per ANSI C37.50; electrical endurance under load is 1,000 cycles per the same standard. That electrical figure governs maintenance intervals — after roughly 1,000 loaded operations at rated current, the arc chutes and contacts should be inspected. Total break time is 25–30 ms; maximum closing response is 50 ms. The integral instantaneous protection range spans 81–99 kA, meaning the magnetic trip element, if present in the installed trip unit, will operate without intentional delay when fault current exceeds that band. Fixed-mount design on a base plate with rails. The mounting hole pitch is 70 mm (2.8 in). Overall dimensions: 11.8 in high, 10.9 in wide, 8.2 in deep. That depth includes the mechanism and arc chamber — panel depth must clear the full 209 mm behind the mounting plate. No DIN-rail clip; this bolts into a switchboard or enclosure floor.","metaTitle":"LV839112 MasterPact MTZ1 1600A 3P Fixed Circuit Breaker, 65","metaDescription":"Schneider Electric LV839112 MasterPact MTZ1 circuit breaker, 1600 A rated, 3-pole, fixed mount, H breaking capacity. 65 kA Icu at 240 V AC UL 489. Active production, sourced to ord","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Depth":"8.2 in (209 mm)","Width":"10.9 in (276.2 mm)","title":"LV839112","Height":"11.8 in (300.5 mm)","description":"Circuit breaker, MasterPacT MTZ1, UL 489, max 1600A rated, 3 pole, fixed mount, H breaking cap, 600VAC, w/o Micrologic trip unit","Control Type":"Push-button","Network type":"AC","Product name":"MasterPact MTZ1","Mounting Mode":"Fixed","lifecycle_stage":"current","Connection pitch":"2.8 in (70 mm)","Mounting Support":"Base plate Rails","Device short name":"MTZ1 16 H","Network Frequency":"50/60 Hz","Performance Level":"65 kA Icu 240 V AC 60 Hz UL 489 50 kA Icu 480 V AC 60 Hz UL 489 50 kA Icu 600 V AC 60 Hz UL 489","Poles description":"3P","Device Application":"Protection","Line Rated Current":"1600 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":"H","Circuit breaker CT rating":"1600 A","Product or Component Type":"Circuit breaker","Integral instant protection":"81...99 kA","Maximum closing response time":"50 ms","Rated breaking and making capacity":"55 kA","[Icw] rated short-time withstand current":"35 kA 0.5 s UL 489"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ca1e88ff270e96cb541676e8b8a4e985.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839112/circuit-breaker-masterpact-mtz1-ul-489-max-1600a-rated-3-pole-fixed-mount-h-breaking-cap-600vac-w-o-micrologic-trip-unit/"},"ai":{"faq":[{"question":"What are the UL 489 interrupting ratings for LV839112?","answer":"The LV839112 carries 65 kA Icu at 240 V AC, 50 kA Icu at 480 V AC, and 50 kA Icu at 600 V AC, all under UL 489. The H breaking capacity code places it in the mid-range of the MTZ1 family."},{"question":"What is the rated current and temperature for LV839112?","answer":"The line rated current is 1600 A at 104 °F (40 °C). This is the continuous current the breaker can carry without exceeding its thermal limits, assuming proper enclosure ventilation."},{"question":"Where can I buy LV839112 and how is it quoted?","answer":"The LV839112 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote — no stock figures or price lists are published here."},{"question":"Does LV839112 include a trip unit?","answer":"No. The LV839112 ships without a Micrologic trip unit. The buyer selects and installs the appropriate protection curve (LSIG, LSI, or electronic) separately based on the application's coordination study."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839112","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/LV839112 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}}