{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839229","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839229","canonicalUrl":"https://aoctrl.com/schneider/LV839229","factsUrl":"https://aoctrl.com/api/mcp/products/LV839229","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric, MasterPact MTZ, MX communicating opening voltage release, LV839229, 200-250 V AC/DC, drawout mounting, obsolete.","salesMarkdown":"The LV839229 is a Schneider Electric MX communicating opening voltage release for MasterPact MTZ drawout circuit breakers. It's the coil that trips the breaker on loss of control voltage or remote command — a control function, not a protection relay. Control circuit voltage is 200-250 V AC 50/60 Hz or 200-250 V DC, with a tripping threshold of 0.7 to 1.1 Un. Holding power sits at 4.5 VA / 4.5 W, so the control transformer or DC supply needs to sustain that continuously. This part is marked obsolete by Schneider Electric. That means the factory line is closed — no last-time-buy window remains open. If you're maintaining an MTZ fleet, this is the kind of spare that gets harder to find each quarter; a cross-reference to a non-communicating MX coil or a third-party equivalent may be worth evaluating for new builds. Drawout mounting means this coil plugs into the MasterPact MTZ cradle — it's not for fixed-mounted breakers. The 50 ms ±10% response time applies across MTZ1, MTZ2, and MTZ3 frames; that's the mechanical opening time once the coil sees the trip threshold. The 0.7-1.1 Un tripping window means it releases when the control voltage drops to 70% of nominal — useful for undervoltage protection schemes — and holds in up to 110% without nuisance tripping. The MX 'com' variant adds communication capability, so it can be tripped remotely via the breaker's control bus, not just by hardwired contacts.","metaTitle":"Schneider Electric LV839229 MX Com Opening Coil, 200-250 V A","metaDescription":"Schneider Electric LV839229 MX communicating opening voltage release for MasterPact MTZ drawout. 200-250 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":"MX com","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":"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/16adeee590e95ff4d47a3933f710e3ab.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839229/mx-communicating-opening-voltage-release-200-250-v-ac-dc-for-mtz-drawout/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV839229/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LV839229?","answer":"Submit an RFQ through this listing. We source obsolete Schneider parts through independent distribution and can confirm availability and current pricing at quote time."},{"question":"What is LV839229's listed mounting mode?","answer":"Drawout mounting — it's designed for the MasterPact MTZ drawout cradle, not for fixed-mounted breaker installations."},{"question":"What is LV839229's response time?","answer":"50 ms ±10% for MasterPact MTZ1, MTZ2, and MTZ3 frames. That's the mechanical opening time once the coil is energized to the trip threshold."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839229","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/LV839229 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}}