{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839261","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839261","canonicalUrl":"https://aoctrl.com/schneider/LV839261","factsUrl":"https://aoctrl.com/api/mcp/products/LV839261","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric, MasterPact MTZ series, MN undervoltage release, LV839261, 48 V AC 50/60 Hz, 48-60 V DC, drawout mounting, safety device.","salesMarkdown":"It operates on a 48 V AC supply at 50/60 Hz or a 48 to 60 V DC control circuit, drawing 4.5 VA / 4.5 W holding power. The undervoltage release opens the breaker when the voltage falls between 0.35 and 0.7 Un, and allows closing only above 0.85 Un. Response time is 40 ms ± 5% for the MTZ1 frame, and 90 ms ± 5% for MTZ2 and MTZ3 frames — fast enough to protect sensitive loads from sustained undervoltage events. ## Sourcing Decision — What to Do Next If your BOM line calls for LV839261, the part is available through our supply network — sourced and quoted to order. Submit an RFQ with your target quantity and required delivery window; we will confirm availability and pricing at that point. No direct pin-compatible replacement is listed in the official Schneider lifecycle documentation for this order code. For cross-reference support, include the breaker frame (MTZ1, MTZ2, or MTZ3) and the existing control voltage in your RFQ notes so we can match the closest available alternative.","metaTitle":"Schneider Electric LV839261 MN Undervoltage Release, 48 V AC","metaDescription":"Obsolete Schneider LV839261 MN undervoltage release for MasterPact MTZ drawout breakers. 48 V AC 50/60 Hz, 48-60 V DC. Sourced to order against RFQ. Quoted on request.","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 MN open Coil powered","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":"48 V AC 50/60 Hz 48...60 V DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/51e7b1539cf57312bb8c9961bfda2626.pdf","sourceUrl":"https://www.se.com/ca/en/product/LV839261/mn-undervoltage-release-48-v-ac-48-60-v-dc-for-mtz-drawout/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV839261/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LV839261?","answer":"Submit an RFQ with your quantity and target delivery date. We source this obsolete part to order through our supply network and will confirm availability and current pricing at quote time."},{"question":"What is LV839261's listed control type?","answer":"The control type is Communicating Standard, meaning it interfaces with the breaker's control wiring and signaling bus for status feedback."},{"question":"What is LV839261's listed mounting mode?","answer":"Drawout mounting — it plugs into the MasterPact MTZ breaker cradle without hard wiring, allowing separable installation and removal."},{"question":"What compliance documentation does Schneider provide for LV839261?","answer":"The evidence does not list specific compliance documentation (RoHS, REACH, UL, IEC) for this order code. Include your compliance requirements in the RFQ so we can verify documentation from the supply source."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839261","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/LV839261 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}}