{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839073","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839073","canonicalUrl":"https://aoctrl.com/schneider/LV839073","factsUrl":"https://aoctrl.com/api/mcp/products/LV839073","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ2, LV839073, ANSI circuit breaker, 2000 A rated, 3-pole, drawout mount, breaking capacity, 635 VAC.","salesMarkdown":"The Schneider Electric MasterPact MTZ2 LV839073 is a 3-pole drawout air circuit breaker rated 2000 A at 104 °F (40 °C), built to ANSI C37.50. It carries an breaking capacity code, delivering up to 200 kA Icu at 254 VAC 60 Hz and 150 kA Icu at 508 VAC 60 Hz. The drawout chassis mounts on base plate rails with a 4.5 in (115 mm) connection pitch, sized for switchboard integration where the breaker must be racked out for maintenance without de-energizing the bus. ## Breaking performance and protection The breaking capacity code means this breaker handles 200 kA Icu at 254 VAC 60 Hz, 150 kA Icu at 508 VAC 60 Hz, and 100 kA Icu at 635 VAC 60 Hz per ANSI C37.50 — sufficient for high-fault utility feeds or large transformer secondaries. The integral instantaneous protection trips between 72 and 88 kA, covering bolted faults without relying on external relays. Maximum breaking time is 9 ms, and the rated short-time withstand current (Icw) is 30 kA for 0.5 s, allowing coordination with downstream breakers during delayed trips. ## Physical footprint Dimensions are 17.5 in wide × 17.3 in high × 16.8 in deep (444.3 × 438.8 × 426.8 mm). The drawout mechanism requires clearance in front for racking, and the base plate rails need a matching cutout in the switchboard floor. Connection pitch of 4.5 in (115 mm) aligns with standard bus bar spacing for 2000 A class breakers.","metaTitle":"Schneider LV839073 MasterPact MTZ2, 2000A, 3P, Drawout, L1","metaDescription":"Schneider Electric MasterPact MTZ2 LV839073 circuit breaker, 2000 A rated at 40 °C, 3-pole drawout, L1 breaking capacity up to 200 kA Icu at 254 VAC. Active production, sourced to","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":"17.5 in (444.3 mm)","title":"LV839073","Height":"17.3 in (438.8 mm)","description":"Circuit breaker, MasterPacT MTZ2, ANSI, max 2000A rated, 3 pole, drawout mount, L1 breaking cap, 635VAC","Control Type":"Push-button","Network type":"AC","Product name":"MasterPact MTZ2","Mounting Mode":"Drawout","lifecycle_stage":"current","Connection pitch":"4.5 in (115 mm)","Mounting Support":"Base plate Rails","Device short name":"MTZ2 20 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":"2000 A 104 °F (40 °C)","Electrical durability":"2800 cycles ANSI C37.50","Maximum breaking time":"9 ms","Mechanical durability":"12500 cycles ANSI C37.50","Nbr. of units in pkg.":"1","Breaking capacity code":"L1","Circuit breaker CT rating":"2000 A","Product or Component Type":"Circuit breaker","Integral instant protection":"72...88 kA","Maximum closing response time":"70 ms","Rated breaking and making capacity":"55 kA","[Icw] rated short-time withstand current":"30 kA 0.5 s ANSI C37.50"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/111351adef4ea3c832de6ae316153fb8.pdf","sourceUrl":"https://www.se.com/ie/en/product/LV839073/circuit-breaker-masterpact-mtz2-ansi-max-2000a-rated-3-pole-drawout-mount-l1-breaking-cap-635vac/"},"ai":{"faq":[{"question":"Where can I buy LV839073 and get a price?","answer":"The LV839073 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key ratings of LV839073?","answer":"Rated 2000 A at 104 °F (40 °C), 3-pole, breaking capacity up to 200 kA Icu at 254 VAC 60 Hz, with integral instantaneous protection set at 72–88 kA and a maximum breaking time of 9 ms."},{"question":"What is the depth of LV839073?","answer":"The depth is 16.8 in (426.8 mm)."},{"question":"What is the width of LV839073?","answer":"The width is 17.5 in (444.3 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839073","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/LV839073 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}}