{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839260","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839260","canonicalUrl":"https://aoctrl.com/schneider/LV839260","factsUrl":"https://aoctrl.com/api/mcp/products/LV839260","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MN undervoltage release, LV839260, 24 V AC 50/60 Hz / 24-30 V DC, for MasterPact MTZ drawout breakers, communicating standard control type.","salesMarkdown":"It operates on a 24 V AC 50/60 Hz or 24-30 V DC control circuit, drawing 4.5 VA / 4.5 W holding power once energized. The tripping threshold is 0.35 to 0.7 times the nominal control voltage (Un) on opening, and it allows closing only above 0.85 Un — meaning the breaker stays latched closed only while the control voltage is healthy, and drops out well before a brownout reaches equipment-damage levels. If you need a drop-in for an existing MTZ drawout installation, the LV839260 is the exact part — there is no later MN release variant that supersedes it in the Schneider catalog. ## Fit and integration notes This is a drawout-mounted voltage release — it plugs into the MasterPact MTZ1, MTZ2, or MTZ3 breaker chassis without hardwiring the release body itself. The drawout cradle carries the control wiring; the release slides in as a field-replaceable module. Response time is frame-dependent: 40 ms ± 5 % on the MTZ1, 90 ms ± 5 % on the MTZ2 and MTZ3. That difference matters for coordination studies — the larger frames have a longer mechanical delay before the undervoltage condition propagates to the trip mechanism. The control type is Communicating Standard, meaning it interfaces with the breaker's communication bus for status feedback (the error coil powered / MN open signaling function). It is not a standalone shunt trip — it reports its state digitally.","metaTitle":"Schneider Electric LV839260 MN Undervoltage Release, 24 V AC","metaDescription":"LV839260 MN undervoltage release for MasterPact MTZ drawout breakers. 24 V AC 50/60 Hz, 24-30 V DC. Obsolete — sourced to order against RFQ via independent channels.","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":"Error Coil powered MN open","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":"24 V AC 50/60 Hz 24...30 V DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/97cc1daba0fc2f03665ad299813c9726.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839260/mn-undervoltage-release-24-v-ac-200-250-v-dc-for-mtz-drawout/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV839260/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to LV839260 in this component family?","answer":"There is no official successor order code from Schneider Electric. The LV839260 is the specific MN undervoltage release for MasterPact MTZ drawout breakers at 24 V AC/DC control voltage. Any replacement would need to match the drawout form factor, the 24 V AC/DC coil, and the Communicating Standard interface — no direct pin-compatible alternate exists in the current catalog."},{"question":"Where can I buy LV839260?","answer":"We source the LV839260 to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position."},{"question":"What is LV839260's control type and mounting mode?","answer":"The control type is Communicating Standard, and the mounting mode is Drawout — it plugs into the MasterPact MTZ breaker cradle rather than being panel-mounted."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839260","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/LV839260 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}}