{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839245","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839245","canonicalUrl":"https://aoctrl.com/schneider/LV839245","factsUrl":"https://aoctrl.com/api/mcp/products/LV839245","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric, MasterPact MTZ series, MX 2nd opening voltage release, LV839245, 380/480 V AC/DC, drawout mounting, 50 ms response time.","salesMarkdown":"The Schneider LV839245 is an MX second opening voltage release for MasterPact MTZ drawout circuit breakers. It serves as a shunt trip — a remote-opening coil that drops the breaker on command from a control signal or protection relay. Control circuit voltage is 380/480 V AC 50/60 Hz or 380/480 V DC, so it ties directly into a 400 V class control bus without an intermediate transformer. Drawout mounting means this coil installs into the breaker cradle, not the fixed base. Response time is 50 ms across MTZ1, MTZ2, and MTZ3 frames. Holding power is 4.5 W / 4.5 VA. Trip threshold spans 0.7...1.1 Un. ## Installation context This component mounts inside the MasterPact MTZ drawout cassette. Control voltage is 380/480 V AC/DC. Response time is 50 ms.","metaTitle":"Schneider LV839245 MX Opening Coil, 380-480V AC/DC, MTZ Draw","metaDescription":"Schneider Electric LV839245 MX 2nd opening voltage release for MasterPact MTZ drawout breakers. 380/480 V AC/DC control circuit, 50 ms response. Obsolete — sourced to order against","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Air Circuit Breakers"],"specifications":{"Mounting Mode":"Drawout","Response time":"50 ms +/- 10 % MasterPact MTZ1 50 ms +/- 10 % MasterPact MTZ2 50 ms +/- 10 % MasterPact MTZ3","lifecycle_stage":"current","Device short name":"second MX","Device Application":"Control","Supply holding power":"4.5 W 4.5 VA","Voltage release type":"Opening coil","Nbr. of units in pkg.":"1","Product or Component Type":"Voltage release","Threshold tripping voltage":"0.7...1.1 Un","[Uc] control circuit voltage":"380/480 V AC 50/60 Hz 380/480 V DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/29c6bab77f2d602ba9904f64f970056f.pdf","sourceUrl":"https://www.se.com/ca/en/product/LV839245/mx-2nd-opening-voltage-release-380-480-v-ac-dc-for-mtz-drawout/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV839245/alternatives.json"},"ai":{"faq":[{"question":"What MasterPact frames does this coil fit?","answer":"The 50 ms response time is specified for MTZ1, MTZ2, and MTZ3 drawout frames. One coil covers the entire MTZ drawout family. Mounting is drawout type, meaning it installs in the breaker cassette."},{"question":"Where can I buy LV839245?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. No stock figures or lead-time numbers are published for this obsolete part."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839245","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/LV839245 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}