{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839263","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839263","canonicalUrl":"https://aoctrl.com/schneider/LV839263","factsUrl":"https://aoctrl.com/api/mcp/products/LV839263","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric LV839263 MN undervoltage release, 200-250 V AC/DC, drawout mount, for MasterPact MTZ, obsolete.","salesMarkdown":"The LV839263 is a Schneider Electric MN undervoltage release for MasterPact MTZ drawout circuit breakers. It trips the breaker when control voltage drops below a set threshold — the threshold tripping voltage is 0.35...0.7 Un on opening and 0.85 Un on closing. Control circuit voltage is 200...250 V AC 50/60 Hz or 200...250 V DC, with a holding power draw of 4.5 W / 4.5 VA. Mounting mode is drawout, meaning the release plugs into the MasterPact MTZ breaker's accessory compartment — no hardwiring to the breaker itself. Response time varies by frame: 40 ms ± 5% for MTZ1, 90 ms ± 5% for MTZ2 and MTZ3. The signalling function reports three states: MN open, coil powered, and error.","metaTitle":"Schneider Electric LV839263 MN Undervoltage Release, 200-250","metaDescription":"Schneider Electric LV839263 MN undervoltage release for MasterPact MTZ drawout breakers. 200-250V AC/DC control circuit. Obsolete; sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Air Circuit Breakers"],"specifications":{"Control Type":"Communicating Standard","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":"MN open Coil powered Error","Supply holding power":"4.5 W 4.5 VA","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":"200...250 V AC 50/60 Hz 200...250 V DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/704e005eb3f77bd34051de94739dce87.pdf","sourceUrl":"https://www.se.com/ca/en/product/LV839263/mn-undervoltage-release-200-250-v-ac-dc-for-mtz-drawout/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV839263/alternatives.json"},"ai":{"faq":[{"question":"Is LV839263 available via RFQ confirmation and what is the lead time for an order?","answer":"Availability and lead time are confirmed at quote time against an RFQ. As an obsolete part, it's sourced through independent distribution — not a stock-on-shelf item."},{"question":"What is LV839263's listed control type?","answer":"The control type is Communicating Standard, meaning it interfaces with the breaker's communication bus for status and control signals."},{"question":"What is LV839263's listed mounting mode?","answer":"Drawout — it plugs into the MasterPact MTZ breaker's accessory compartment, not hardwired to the breaker."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839263","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/LV839263 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}}