{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV839212","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV839212","canonicalUrl":"https://aoctrl.com/schneider/LV839212","factsUrl":"https://aoctrl.com/api/mcp/products/LV839212","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPacT, MicroLogic 2.0 X control unit, LV839212, LI protection, LCD display, full power metering, 3P 4P.","salesMarkdown":"The Schneider Electric LV839212 is a MicroLogic 2.0 X control unit for the MasterPacT range of air circuit breakers. The trip unit rating is configurable: 400 A, 630 A, 800 A, 1000 A, 1250 A, 1600 A, 2000 A, 2500 A, 3200 A, 4000 A, 5000 A, and 6300 A. The long-time pickup (Ir) is adjustable from 0.4 to 1 x In in 1 A steps. The instantaneous pickup (Ii) is adjustable, and the long-time delay (tr) has three settable curves: 12.5–600 s at 1.5 x Ir, 0.5–24 s at 6 x Ir, and 0.7–16.6 s at 7.2 x Ir. This gives you the selectivity headroom to coordinate downstream breakers without nuisance tripping on motor inrush. Metering accuracy is Class 0.5 for voltage and current, Class 1 for active power and energy, and Class 2 for reactive power and THD. That means the built-in power meter is accurate enough for submetering and energy allocation without a separate revenue-grade meter. ## Metering and Diagnostics — What the LCD Tells You The 128 x 96 pixel LCD display shows all metered values locally: phase and neutral currents, line-to-line and line-to-neutral voltages, active/reactive/apparent power, power factor, frequency, THD, and unbalance. The unit logs min/max values, alarms, events, and maintenance logs with time stamps. The diagnostics suite includes circuit breaker health state, contact wear, trip cause indication, protection test results, and selectivity test results. Thermal memory is standard, so the trip curve remembers the thermal history of the protected conductor after a momentary overload. ## Communication and Connectivity The control unit communicates via Bluetooth 4.0 LE (30 kbit/s), NFC (28.8 kbaud), and USB (115 kbaud). This allows local configuration and data download using a smartphone or laptop without opening the panel door. Measurement voltage input is 208–828 V AC phase-to-phase and 120–480 V AC phase-to-neutral, 50/60 Hz. Rated for operation from -25 °C to +70 °C (start-up down to -35 °C), with 95% relative humidity at 55 °C per IEC 60068-2-30. EMC tested per IEC 61000-4-2/3/4/5/6 and CISPR 22 Class A.","metaTitle":"Schneider LV839212 MicroLogic 2.0 X Control Unit, MasterPacT","metaDescription":"Schneider Electric LV839212 MicroLogic 2.0 X control unit for MasterPacT breakers. LI protection, full metering, LCD display. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Poles":"3P 4P","Range":"MasterPacT","title":"LV839212","Standards":"EN/IEC 60255-1 EN/IEC 60092-202 EN/IEC 60947-2 EN/IEC 60947-1","description":"MicroLogic 2.0X control unit, drawout MasterPact MTZ IEC, without active arc flash, without 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":"Min/max of instantaneous values Maintenance logs Time stamping Alarm logs Data logs Event logs","Thermal memory":"Yes","Protection type":"Instantaneous short-circuit protection ANSI 50 Overload (long time) ANSI 49","lifecycle_stage":"current","Pollution degree":"3 IEC 60947-1","Trip unit rating":"5000 A 1600 A 2000 A 2500 A 630 A 6300 A 1000 A 3200 A 400 A 4000 A 800 A 1250 A","Device short name":"MicroLogic 2.0 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 28800 bauds ISO 15963 USB peer to peer 115 kbauds","Frequency measurement range":"40...70 Hz","Protected poles description":"4P 3d + OSN 3P 3d 4P 4d 4P 3d 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":"LI","Long time delay adjustment type":"Adjustable in step of 0.5 s","Zone selective interlocking ZSI":"Without","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","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","[Ir] long time pick-up adjustment range":"0.4...1 x In adjustable in step of 1 A","Instantaneous pick-up adjustment type Ii":"Adjustable","[Ii] instantaneous 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","[Li Mode] Instantaneous Delay Adjustment Range":"20 ms standard"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a5e72043fab5467f320d6adc8beaba02.pdf","sourceUrl":"https://www.se.com/us/en/product/LV839212/micrologic-2-0x-control-unit-drawout-masterpact-mtz-iec-without-active-arc-flash-without-communication/"},"ai":{"faq":[{"question":"What is LV839212's listed poles (3P 4P) on this component line?","answer":"The LV839212 supports 3-pole and 4-pole MasterPacT breakers, with protected pole configurations including 3P 3d, 4P 3d, 4P 4d, 4P 3d + N/2, and 4P 3d + OSN."},{"question":"What is LV839212's listed range (MasterPacT) on this component line?","answer":"The LV839212 is part of the Schneider Electric MasterPacT range of air circuit breakers."},{"question":"What compliance documentation does this brand provide for LV839212 (RoHS, REACH, UL, IEC)?","answer":"The LV839212 is compliant with EN/IEC 60255-1, EN/IEC 60092-202 (marine applications), EN/IEC 60947-2, and EN/IEC 60947-1. EMC compliance covers IEC 61000-4-2/3/4/5/6 and CISPR 22 Class A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV839212","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/LV839212 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}}