{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV848179","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV848179","canonicalUrl":"https://aoctrl.com/schneider/LV848179","factsUrl":"https://aoctrl.com/api/mcp/products/LV848179","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPacT MTZ2, fixed circuit breaker, 4P, 1250 A at 40 °C, H2 100 kA 415 V AC, IP30, EN/IEC 60947-2.","salesMarkdown":"## MasterPact MTZ2 12 H2 — 1250 A fixed breaker for power distribution The LV848179 is a Schneider Electric MasterPact MTZ2 fixed circuit breaker, 4 poles, rated 1250 A at 40 °C. The device is Category B selectivity, so it coordinates with downstream breakers to isolate only the faulted branch, keeping the rest of the distribution live. The Icw short-time withstand is 85 kA for 1 second, which matters for coordination studies: downstream devices must clear within that window or the breaker's through-fault rating is exceeded. Rated impulse withstand voltage is 12 kV, covering surge events on industrial mains. The 100 W power dissipation at rated current means the panel's thermal budget needs to account for that heat — forced ventilation or larger enclosure volume may be required if other heat sources are nearby. ## Mounting and integration — fixed, front/rear connections Fixed mounting on rails or base plate. Connection pitch is 115 mm. Both upside and downside connections accept front or rear terminations, giving flexibility for panel layout — rear connection keeps cabling out of the door swing area. Neutral is on the right. Dimensions: 537 mm wide, 352 mm high, 300 mm deep — verify the enclosure depth allows rear cable bending radius. This is a current-production part, so lead times are typically factory-build cycles rather than last-time-buy surplus.","metaTitle":"Schneider Electric LV848179 MasterPact MTZ2 4P 1250A Circuit","metaDescription":"LV848179 MasterPact MTZ2 4P fixed circuit breaker, 1250 A at 40 °C, H2 100 kA at 415 V AC. EN/IEC 60947-2. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"300 mm","Range":"MasterPacT","Width":"537 mm","title":"LV848179","Height":"352 mm","Standards":"EN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H IEC 61557-12","description":"Circuit breaker MTZ2 12H2 - 1250 A - 4P fixed - right neutral - w/o Micrologic","Control type":"Push-button","Control unit":"Without control unit","Product name":"MasterPact MTZ2","Mounting mode":"Fixed","Sensor rating":"630 A 800 A 1000 A 1250 A","lifecycle_stage":"current","Connection pitch":"115 mm","Mounting support":"Rails Base plate","Neutral position":"Right","Performance type":"H2 100 kA 415 V AC","Pollution degree":"3 conforming to IEC 60947-1","Device short name":"MTZ2 12 H2","Poles description":"4P","Upside connection":"Front Rear","Device application":"Power distribution protection","Operating altitude":"0...2000 m without derating 2000...5000 m with derating","[In] rated current":"1250 A at 40 °C","Downside connection":"Front Rear","Selectivity category":"Category B","Electrical durability":"10000 cycles 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 10000 cycles 690 V AC 50/60 Hz conforming to EN/IEC 60947-2 AC-23A: 10000 cycles 440 V AC 50/60 Hz conforming to EN/IEC 60947-3 AC-23A: 10000 cycles 690 V AC 50/60 Hz conforming to EN/IEC 60947-3 AC-3: 6000 cycles 440/690 V AC 50/60 Hz conforming to EN/IEC 60947-3","Maximum breaking time":"25 ms","Mechanical durability":"25000 cycles with periodic preventive maintenance","Power dissipation in W":"100 W","IP degree of protection":"IP30 conforming to EN 60529","Product or component type":"Circuit breaker","Suitability for isolation":"Yes conforming to EN/IEC 60947-2","Maximum closing response time":"70 ms","[Ui] rated insulation voltage":"1000 V AC 50/60 Hz","[Ue] rated operational voltage":"690 V AC 50/60 Hz","Ambient air temperature for storage":"-40...85 °C","Ambient air temperature for operation":"-25...70 °C","[Ics] rated service breaking capacity":"100 kA at 220/415 V AC 50/60 Hz 100 kA at 440 V AC 50/60 Hz 85 kA at 500/525 V AC 50/60 Hz 85 kA at 660/690 V AC 50/60 Hz","[Uimp] rated impulse withstand voltage":"12 kV","[Icw] rated short-time withstand current":"85 kA 0.5 s 85 kA 1 s 50 kA 3 s","[Icm] rated short-circuit making capacity":"220 kA 220/415 V AC at 50/60 Hz 220 kA 440 V AC at 50/60 Hz 187 kA 500/525 V AC at 50/60 Hz 187 kA 660/690 V AC at 50/60 Hz","Integrated instantaneous protection (DIN in kA peak)":"171...209 kA","[Icu] rated ultimate short-circuit breaking capacity":"100 kA at 220/415 V AC 50/60 Hz 100 kA at 440 V AC 50/60 Hz 85 kA at 500/525 V AC 50/60 Hz 85 kA at 660/690 V AC 50/60 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a0d4f634b8ee81ff423c2a93e4ae2cf3.pdf","sourceUrl":"https://www.se.com/ae/en/product/LV848179/circuit-breaker-mtz2-12h2-1250-a-4p-fixed-right-neutral-w-o-micrologic/"},"ai":{"faq":[{"question":"What is the breaking capacity of LV848179?","answer":"The H2 performance class delivers 100 kA Ics (service breaking capacity) at 440 V AC, and 100 kA at 415 V AC. The Icu (ultimate breaking capacity) is the same 100 kA at those voltages. At 690 V AC the Ics is 85 kA."},{"question":"What compliance documentation does Schneider provide for LV848179?","answer":"The breaker is certified to EN/IEC 60947-1, EN/IEC 60947-2, EN/IEC 60947-2 Annex H, and IEC 61557-12. Pollution degree 3 per IEC 60947-1. Suitable for isolation per EN/IEC 60947-2."},{"question":"What is the depth of LV848179?","answer":"300 mm depth, with width 537 mm and height 352 mm. Verify enclosure depth allows rear cable bending radius."},{"question":"How do I get pricing and availability for LV848179?","answer":"Submit an RFQ with your quantity and target ship date. The part is sourced to order through independent distribution; current pricing and lead time are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV848179","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/LV848179 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}