{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839211","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839211","canonicalUrl":"https://aoctrl.com/schneider/LV839211","factsUrl":"https://aoctrl.com/api/mcp/products/LV839211","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPacT MicroLogic 6.0 X control unit, LV839211, electronic trip unit with LSIG protection, LCD display, 3P/4P, 400–6300 A rating range.","salesMarkdown":"The LV839211 is a Schneider Electric MicroLogic 6.0 X control unit, the brains inside a MasterPacT air circuit breaker. It's an electronic trip unit — not the breaker itself — that handles protection, metering, and communication for the assembly it's plugged into. Rated for the full MasterPacT frame range, the trip unit works with breaker ratings from 400 A up to 6300 A, covering MTZ1, MTZ2, and MTZ3 frames. That means one control unit type fits across multiple breaker sizes, simplifying spares stocking for a panel builder or facility. ## Protection profile — LSIG with adjustable timing The LV839211 provides LSIG protection: Long-time (overload), Short-time (short-circuit with delay), Instantaneous (high-level fault), and Ground fault. Each function is adjustable — long-time delay in 0.5 s steps, short-time delay adjustable, and ground-fault pickup adjustable — so the trip curve can be tuned to the load and selectivity scheme. Zone Selective Interlocking (ZSI) is built in, which lets multiple breakers in a cascade communicate to clear a fault at the closest device without waiting for a time delay. That keeps arc-flash energy lower and speeds up fault isolation in a distribution lineup. Thermal memory is included, meaning the trip unit remembers the thermal state of the conductor even after a trip event — prevents re-closing into a still-hot circuit and avoids nuisance trips on fast re-energization. ## Communications and integration Onboard communication includes Bluetooth 4.0 LE (30 kbit/s peer-to-peer), NFC (ISO 15963), and USB (115 kbaud). That means you can pull data or change settings with a phone or tablet via the Schneider EcoStruxure app, or connect a laptop directly via USB — no gateway required for local access. The measurement voltage range is 208–828 V AC phase-to-phase and 120–480 V AC phase-to-neutral, at 50/60 Hz. The unit is powered from the breaker's own voltage taps — no separate control power supply needed for the metering section. Relative humidity tolerance is 95 % at 55 °C per IEC 60068-2-30. Maximum operating altitude is 5000 m with voltage derating above 2000 m. Electromagnetic compatibility covers electrostatic discharge, radiated and conducted immunity, electrical fast transients, surges (1.2/50 µs), and conducted RF disturbances per IEC 61000-4-2 through -6. Conducted and radiated emissions meet Class A per CISPR 22.","metaTitle":"Schneider Electric LV839211 MicroLogic 6.0 X Control Unit, M","metaDescription":"Schneider Electric LV839211 MicroLogic 6.0 X control unit for MasterPacT breakers. LSIG protection, LCD display, Bluetooth/NFC/USB. Active production, sourced to order. Inquire for","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Poles":"3P 4P","Range":"MasterPacT","title":"LV839211","Standards":"EN/IEC 60947-1 EN/IEC 60092-202 EN/IEC 60255-1 EN/IEC 60947-2","description":"MicroLogic 6.0X control unit, fixed MasterPact MTZ IEC, without active arc flash, with communication","Display type":"LCD display - 128 x 96 pixels","Network type":"AC","Metering type":"Current I1, I2, I3, Iavg RMS Neutral current IN RMS Ground fault current Ig RMS Voltage V12, V23, V31, VLLavg RMS Voltage V1N, V2N, V3N, VLNavg RMS Active power P, P1, P2, P3 total Reactive power Q, Q1, Q2, Q3 total Apparent power S, S1, S2, S3 total Power factor Active energy Ep IN/OUT/tot Reactive energy Eq IN/OUT/tot Apparent energy Es IN/OUT/tot Demand current I1, I2, I3, In, Iavg Demand power P, Q, S Frequency Phase sequence Earth leakage current Total current harmonic distortion THD (I) Total voltage harmonic distortion THD (V) Unbalance current Unbalance voltage","Mounting Mode":"Fixed","Accuracy class":"Class 5 total current harmonic distortion THD (I) Class 0.5 unbalance voltage Class 1 active and reactive energy by pulse counting (+/- W.h, +/- VAR.h) Class 2 total voltage harmonic distortion THD (V)","Data recording":"Time stamping Alarm logs Data logs Event logs Min/max of instantaneous values Maintenance logs","Thermal memory":"Yes","Protection type":"Overload protection (long time) ANSI 49 Instantaneous short-circuit protection ANSI 50 Short time short-circuit protection ANSI 51 Earth fault ANSI 51N","lifecycle_stage":"current","Pollution degree":"3 IEC 60947-1","Trip unit rating":"1000 A 5000 A 2500 A 800 A 1250 A 3200 A 630 A 1600 A 2000 A 400 A 4000 A 6300 A","Device short name":"MicroLogic 6.0 X","Energy management":"Measurement ,active, reactive and apparent energy (standard) Measurement ,electrical network (standard) Measurement ,energy (standard)","Network Frequency":"50/60 Hz","Relative humidity":"95 % 131 °F (55 °C) IEC 60068-2-30","Device Application":"Equipment protection, monitoring and control","Operating altitude":"<= 16404.2 ft (5000 m) with operational voltage derating 560 V AC","Measurement voltage":"208...828 V AC 50/60 Hz phase to phase 120...480 V AC 50/60 Hz phase to neutral","Type of Measurement":"Power meter","Measurement accuracy":"Current I1, I2, I3, Iavg, Idemand for MTZ1 +/- 0.5 % 40...1600 x 1.2 A Current I1, I2, I3, Iavg, Idemand for MTZ2 +/- 0.5 % 40...4000 x 1.2 A Current I1, I2, I3, Iavg, Idemand for MTZ3 +/- 0.5 % 80...6300 x 1.2 A Neutral current IN +/- 1 % Ground fault current Ig +/- 5 % Voltage V12, V23, V31, VLLavg +/- 0.5 % 208...690 x 1.2 V Voltage V1N, V2N, V3N, VLNavg +/- 0.5 % 120...400 x 1.2 V Active power P, P1, P2, P3, Pdemand +/- 1 % Reactive power Q, Q1, Q2, Q3, Qdemand +/- 2 % Apparent power S, S1, S2, S3, Sdemand +/- 1 % Power factor +/- 2 % Active energy Ep IN/OUT/tot +/- 1 % Reactive energy Ep IN/OUT/tot +/- 2 % Apparent energy Es IN/OUT/tot +/- 1 % Frequency +/- 0.005 Hz Earth leakage current +/- 10 % Unbalance current +/- 0.5 %","Trip unit technology":"Electronic","Nbr. of units in pkg.":"1","Product or Component Type":"Control unit","Neutral protection setting":"1 x Ir 4P 4d) 0.5 x Ir 4P 3d + N/2) 1.6 x Ir 4P 3d + OSN) No protection 4P 3d)","Circuit breaker application":"Distribution IEC standard","Communication port protocol":"Bluetooth 4.0 LE peer to peer 30 kbit/s NFC peer to peer ISO 15963 USB peer to peer 115 kbauds","Frequency measurement range":"40...70 Hz","Protected poles description":"4P 3d 3P 3d 4P 3d + OSN 4P 4d 4P 3d + N/2","Electromagnetic compatibility":"Electrostatic discharge immunity test conforming to IEC 61000-4-2 Susceptibility to electromagnetic fields conforming to IEC 61000-4-3 Electrical fast transient/burst immunity test conforming to IEC 61000-4-4 1.2/50 µs shock waves immunity test conforming to IEC 61000-4-5 Conducted RF disturbances conforming to IEC 61000-4-6 Conducted and radiated emissions A conforming to CISPR 22","Trip unit protection functions":"LSIG","Long time delay adjustment type":"Adjustable in step of 0.5 s","Zone selective interlocking ZSI":"With","Short-time delay adjustment type":"Adjustable","Network and machine diagnosis type":"System (HMI) health state overview circuit breaker health state Contacts state circuit breaker health state MicroLogic service life circuit breaker health state Tripping cause indication circuit breaker tripping cause Identification card diagnostic data Configured alarms synthesis diagnostic data Monitored function diagnostic data Operation diagnostic data MicroLogic test test Protection test test Selectivity test test Trip context information crisis management Operation advanced diagnostic Breaker service life circuit breaker health state","Ground-fault pick-up adjustment type":"Adjustable","Ambient air temperature for operation":"-13...158 °F (-25...70 °C) operating) -31 °F (-35 °C) for start-up of product)","[Tr] Long-Time Delay Adjustment Range":"12.5...600 s 1.5 x Ir 0.5...24 s 6 x Ir 0.7...16.6 s 7.2 x Ir","Ground-Fault Time Delay Adjustment Type":"Adjustable","[Ir] long time pick-up adjustment range":"0.4...1 x In adjustable in step of 1 A","[Tsd] Short-Time Delay Adjustment Range":"0.1...0.4 s I²t=on 0...0.4 s I²t=off","Instantaneous pick-up adjustment type Ii":"Adjustable","[Isd] short-time pick-up adjustment range":"1.5...10 x Ir adjustable in step of 0.5 x Ir embedded HMI 1.5...10 x Ir adjustable in step of 0.1 x Ir Ecoreach software or MasterPact MTZ mobile app","[Ig] ground-fault pick-up adjustment range":"In > 400 A 0.2...1 x In adjustable in step of 1 or 10 A In Ig enable on/off","[Ii] instantaneous pick-up adjustment range":"2...15 x In adjustable in step of 0.5 x In embedded HMI 2...15 x In adjustable in step of 0.1 x In Ecoreach software or MasterPact MTZ mobile app Ii enable on/off","[tg] Ground-fault time delay adjustment range":"0.1...0.4 s I²t=on 0...0.4 s I²t=off","[Li Mode] Instantaneous Delay Adjustment Range":"0 ms fast 20 ms standard"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f283841dd85631ad3158cdb052f214e3.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839211/micrologic-6-0x-control-unit-fixed-masterpact-mtz-iec-without-active-arc-flash-with-communication/"},"ai":{"faq":[{"question":"What poles configurations does LV839211 support?","answer":"The LV839211 supports 3-pole and 4-pole MasterPacT breakers. For 4-pole configurations, neutral protection can be set to 1 x Ir (4P 4d), 0.5 x Ir (4P 3d + N/2), 1.6 x Ir (4P 3d + OSN), or no protection."},{"question":"What compliance standards does LV839211 meet?","answer":"The LV839211 complies with EN/IEC 60947-1, EN/IEC 60947-2 (circuit-breaker standard), EN/IEC 60092-202 (marine electrical installations), and EN/IEC 60255-1 (measuring relays). EMC compliance covers IEC 61000-4-2 through -6 and CISPR 22 Class A emissions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839211","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/LV839211 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}