{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV846540","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV846540","canonicalUrl":"https://aoctrl.com/schneider/LV846540","factsUrl":"https://aoctrl.com/api/mcp/products/LV846540","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ2, LV846540, 3P fixed circuit breaker, 800 A at 40 °C, 50 kA Icu/Ics at 1150 V AC, H10 performance level.","salesMarkdown":"## What this breaker delivers The Schneider Electric LV846540 is a MasterPact MTZ2 08 H10 fixed circuit breaker, 3-pole, rated 800 A at 40 °C. It carries a 50 kA ultimate breaking capacity (Icu) and 50 kA service breaking capacity (Ics) at 1150 V AC 50/60 Hz — both at the same level, which means the breaker can be reclosed immediately after clearing a fault at its full rating without derating for the next operation. That matters for critical power-distribution protection where a single fault event can't force a breaker swap. Category B selectivity (per EN/IEC 60947-2) means it coordinates with downstream breakers to isolate only the faulted branch, keeping the rest of the bus live. Rated insulation voltage is 1250 V AC, impulse withstand 12 kV — headroom for 1150 V systems with transient margins. Fixed-mount chassis, 422 mm wide × 352 mm high × 300 mm deep. Connection pitch 115 mm. Mounts on rails or a base plate — typical for switchboard or MCC integration where the breaker stays in place and doesn't get drawn out for maintenance. Rear connections both top and bottom; upside and downside are both rear, so the cable entry and exit are on the same plane. IP30 front face — protected against tools and wires >2.5 mm, but not sealed against dust ingress; install in a clean, enclosed panel. ## Durability and environment Mechanical durability: 25,000 cycles with periodic preventive maintenance. Electrical durability: 500 cycles at 1150 V AC, 50/60 Hz per EN/IEC 60947-2. Maximum breaking time 25 ms, closing response 70 ms — fast enough to limit arc energy in a fault. Altitude: full rating up to 2000 m, derated above that to 5000 m.","metaTitle":"Schneider Electric LV846540 MasterPact MTZ2 08 H10, 800 A, 5","metaDescription":"Schneider Electric LV846540 MasterPact MTZ2 circuit breaker. 800 A rated current, 50 kA Icu at 1150 V AC, 3P fixed. EN/IEC 60947-2. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Air Circuit Breakers"],"specifications":{"Depth":"300 mm","Range":"MasterPacT","Width":"422 mm","title":"LV846540","Height":"352 mm","Standards":"EN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H IEC 61557-12","description":"Circuit breaker frame, MasterPact MTZ2 08H10 fixed for MicroLogic X, 800A, 50kA/1150VAC (Icu), 3P","Control type":"Push-button","Control unit":"Without control unit","Product name":"MasterPact MTZ2","Mounting mode":"Fixed","Sensor rating":"400 A 630 A 800 A","lifecycle_stage":"current","Connection pitch":"115 mm","Mounting support":"Rails Base plate","Performance type":"H10 50 kA 1150 V AC","Pollution degree":"3 conforming to IEC 60947-1","Device short name":"MTZ2 08 H10","Poles description":"3P","Upside connection":"Rear","Device application":"Power distribution protection","Operating altitude":"0...2000 m without derating 2000...5000 m with derating","[In] rated current":"800 A at 40 °C","Downside connection":"Rear","Selectivity category":"Category B","Electrical durability":"500 cycles 1150 V AC 50/60 Hz conforming to EN/IEC 60947-2","Maximum breaking time":"25 ms","Mechanical durability":"25000 cycles with periodic preventive maintenance","Power dissipation in W":"42 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":"1250 V AC 50/60 Hz","[Ue] rated operational voltage":"1150 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":"50 kA at 1150 V AC 50/60 Hz","[Uimp] rated impulse withstand voltage":"12 kV","[Icw] rated short-time withstand current":"50 kA 1 s 50 kA 0.5 s 50 kA 3 s","[Icm] rated short-circuit making capacity":"105 kA 1150 V AC at 50/60 Hz","[Icu] rated ultimate short-circuit breaking capacity":"50 kA at 1150 V AC 50/60 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10,650.49 – $11,183.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c89631bf79c1b8cbb67d52104ad8f01f.pdf","sourceUrl":"https://www.se.com/ie/en/product/LV846540/circuit-breaker-frame-masterpact-mtz2-08h10-fixed-for-micrologic-x-800a-50ka-1150vac-icu-3p/"},"ai":{"faq":[{"question":"What is LV846540's rated breaking capacity?","answer":"Icu (ultimate) and Ics (service) are both 50 kA at 1150 V AC 50/60 Hz. The short-time withstand current Icw is also 50 kA for 1 s, 0.5 s, or 3 s. Making capacity Icm is 105 kA at 1150 V AC."},{"question":"What standards does LV846540 comply with?","answer":"It complies with EN/IEC 60947-1, EN/IEC 60947-2, EN/IEC 60947-2 Annex H, and IEC 61557-12. It is suitable for isolation per EN/IEC 60947-2."},{"question":"Where can I buy LV846540?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV846540","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/LV846540 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}}