{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839262","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839262","canonicalUrl":"https://aoctrl.com/schneider/LV839262","factsUrl":"https://aoctrl.com/api/mcp/products/LV839262","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric LV839262, MN undervoltage release, 100-130 V AC/DC, for MasterPact MTZ drawout breakers, obsolete status.","salesMarkdown":"The Schneider Electric LV839262 is an MN undervoltage release for MasterPact MTZ drawout circuit breakers, operating on a 100-130 V AC/DC control circuit. It is classified as a safety device — when the control voltage drops below the threshold (0.35 to 0.7 Un), the release trips the breaker open, and it will not allow closing until voltage returns above 0.85 Un. This is the standard undervoltage protection function for a drawout power breaker: if you lose control power, the main contacts open, preventing automatic reclosure on an unstable line. Drawout mounting means this release plugs into the breaker cradle, not onto a DIN rail. The response time is 40 ms ± 5% for the MTZ1 frame, 90 ms ± 5% for MTZ2 and MTZ3 frames — that is the delay from voltage loss to contact opening. Holding power is 4.5 VA / 4.5 W, so the control transformer or UPS supplying the trip circuit needs to budget for that continuous draw. The signalling function reports 'Coil powered MN open Error' — a dry contact or status output that tells the PLC or BMS that the undervoltage coil is energized and the breaker is ready to close.","metaTitle":"Schneider Electric LV839262 MN Undervoltage Release, 100-130","metaDescription":"Schneider LV839262 MN undervoltage release for MasterPact MTZ drawout breakers. 100-130V AC/DC control voltage. Obsolete — sourced to order against RFQ via independent distribution","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Air Circuit Breakers"],"specifications":{"Control Type":"Standard Communicating","Mounting Mode":"Drawout","Response time":"40 ms +/- 5 % MasterPact MTZ1 90 ms +/- 5 % MasterPact MTZ2 90 ms +/- 5 % MasterPact MTZ3","lifecycle_stage":"current","Device short name":"MN","Device Application":"Safety","Signalling function":"Coil powered MN open Error","Supply holding power":"4.5 VA 4.5 W","Voltage release type":"Undervoltage release","Nbr. of units in pkg.":"1","Product or Component Type":"Voltage release","Threshold tripping voltage":"0.35...0.7 Un on opening 0.85 Un on closing","[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/ab338a1ec0b8f3525045c71301fbed07.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839262/mn-undervoltage-release-100-130-v-ac-dc-for-mtz-drawout/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV839262/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LV839262 and how do I get a price?","answer":"We source the LV839262 to order against an RFQ through our independent distribution network. Submit a request for quote — current availability and pricing are confirmed at quote time. Think landed, not list: since this is an obsolete part, the total cost includes sourcing effort, not just the unit price."},{"question":"What is LV839262's listed control type (Standard Communicating) on this component line?","answer":"The control type is listed as 'Standard Communicating'. For this MN undervoltage release, that means it is a standard-function device that communicates its status (coil powered / trip condition) back to the breaker's control system or auxiliary contacts — it is not a basic standalone coil."},{"question":"What is LV839262's listed mounting mode (Drawout) on this component line?","answer":"The mounting mode is 'Drawout'. This release is designed to plug into the drawout cradle of a MasterPact MTZ breaker, not for fixed mounting on a panel or DIN rail. The drawout interface is specific to the MTZ frame series."},{"question":"What compliance documentation does this brand provide for LV839262 (RoHS, REACH, UL, IEC)?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for this order code. As an obsolete Schneider part originally designed for MasterPact MTZ breakers, it was manufactured to applicable IEC and UL standards for its era. For current compliance documentation, the paperwork would need to be verified against the specific production batch at time of sourcing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839262","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/LV839262 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}}