{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839242","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839242","canonicalUrl":"https://aoctrl.com/schneider/LV839242","factsUrl":"https://aoctrl.com/api/mcp/products/LV839242","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric, MasterPact MTZ, MX 2nd opening voltage release, LV839242, 100-130 V AC/DC, drawout mounting, 50 ms response time.","salesMarkdown":"## MX 2nd opening voltage release for MasterPact MTZ drawout The Schneider Electric LV839242 is an MX 2nd opening voltage release — a control-mounted opening coil for MasterPact MTZ drawout circuit breakers. It operates on a 100-130 V AC 50/60 Hz or 100-130 V DC control circuit, with a tripping threshold of 0.7 to 1.1 times the nominal control voltage. The response time is 50 ms ±10% across the MTZ1, MTZ2, and MTZ3 frames. ## Drawout mounting and panel integration Mounting mode is drawout, meaning this coil installs into the MasterPact MTZ's control compartment and connects via the breaker's drawout cradle — no separate DIN-rail or panel footprint. The supply holding power is 4.5 VA / 4.5 W, which the control transformer must support continuously. Verify the control circuit voltage matches your site's supply: 100-130 V AC/DC, 50/60 Hz.","metaTitle":"Schneider Electric LV839242 MX Opening Coil, 100-130 V AC/DC","metaDescription":"Schneider LV839242 MX 2nd opening voltage release for MasterPact MTZ drawout. 100-130 V AC/DC, 50 ms response. Obsolete — sourced to order against RFQ.","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 VA 4.5 W","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":"100...130 V AC 50/60 Hz 100...130 V DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/00c15bb86b8f7d97e7839100e6d4d46d.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839242/mx-2nd-opening-voltage-release-100-130-v-ac-dc-for-mtz-drawout/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV839242/alternatives.json"},"ai":{"faq":[{"question":"What is LV839242's listed mounting mode?","answer":"Drawout. It installs into the MasterPact MTZ drawout cradle, not on a DIN rail or panel surface."},{"question":"What is the response time of LV839242?","answer":"50 ms ±10% across MasterPact MTZ1, MTZ2, and MTZ3 frames."},{"question":"Where can I buy LV839242?","answer":"We source the LV839242 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/LV839242","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/LV839242 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}}