{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV846546","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV846546","canonicalUrl":"https://aoctrl.com/schneider/LV846546","factsUrl":"https://aoctrl.com/api/mcp/products/LV846546","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPact MTZ2, LV846546, fixed 3P circuit breaker, 3200 A at 40 °C, 50 kA Icu at 1150 V AC, H10 performance.","salesMarkdown":"## What the 3200 A and 50 kA ratings mean for your main switchboard The LV846546 is a Schneider Electric MasterPact MTZ2 fixed circuit breaker, 3-pole, rated 3200 A continuous at 40 °C ambient — that is the full-load current it carries without tripping, sized for the main incoming feeder or a large bus riser in an industrial distribution board. Its ultimate breaking capacity (Icu) is 50 kA at 1150 V AC 50/60 Hz, and the service breaking capacity (Ics) matches at 50 kA — meaning after clearing a 50 kA fault the breaker remains usable, not just safe. The making capacity (Icm) of 105 kA peak at 1150 V handles the asymmetrical first peak of a fault. Short-time withstand (Icw) is 50 kA for 1 s, 0.5 s, or 3 s, which lets it ride through downstream faults while upstream breakers wait for selectivity — Category B per IEC 60947-2. That 50 kA for 1 s is the number a coordination study checks first. Rated insulation voltage (Ui) is 1250 V AC, impulse withstand (Uimp) is 12 kV — the breaker holds off surge voltages common in industrial networks fed by transformers or generators. ## Physical fit and mounting — fixed rear-connection footprint The breaker is fixed-mounted on rails or a base plate, with rear connections both top and bottom. Face dimensions are 422 mm wide by 352 mm tall, depth 300 mm — the depth is the critical dimension for enclosure depth when the rear studs project behind the mounting plane. Connection pitch is 115 mm between phase centres, which matches the standard busbar drill pattern for this frame size. IP30 enclosure protection means it is suitable for indoor switchgear but needs a door or cover to keep tools and debris out. ## Lifecycle and sourcing status Because this is a high-current main breaker (3200 A frame), lead times and allocation can vary with project load. ## Standards compliance and documentation It also meets IEC 61557-12 for power metering performance when fitted with a control unit. Electrical endurance is 500 cycles at rated voltage and current; mechanical endurance is 20000 cycles with periodic preventive maintenance. Power dissipation at rated current is 420 W — factor that into the switchgear ventilation and temperature-rise calculation.","metaTitle":"Schneider Electric LV846546 MasterPact MTZ2 3200 A Circuit B","metaDescription":"LV846546 MasterPact MTZ2 fixed 3P circuit breaker. Rated 3200 A at 40 °C, 50 kA Icu at 1150 V AC. Category B selectivity. Active production. Quoted 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":"LV846546","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 32H10 fixed for MicroLogic X, 3200A, 50kA/1150VAC (Icu), 3P","Control type":"Push-button","Control unit":"Without control unit","Product name":"MasterPact MTZ2","Mounting mode":"Fixed","Sensor rating":"1600 A 2000 A 2500 A 3200 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 32 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":"3200 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":"20000 cycles with periodic preventive maintenance","Power dissipation in W":"420 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":"$10,739.80 – $11,276.80","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8962742e2e20fe34402ef3abf05a3009.pdf","sourceUrl":"https://www.se.com/ie/en/product/LV846546/circuit-breaker-frame-masterpact-mtz2-32h10-fixed-for-micrologic-x-3200a-50ka-1150vac-icu-3p/"},"ai":{"faq":[{"question":"How do I get current pricing and availability for LV846546?","answer":"Submit an RFQ against this order code. The part is sourced and quoted to order through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the closest alternative to LV846546 in the MasterPact family?","answer":"Within the MasterPact MTZ2 fixed frame, the closest sibling is the same physical breaker with a different sensor rating (e.g., 2500 A or 2000 A). The LV846546 is the 3200 A variant; changing the sensor rating changes the order code but shares the same mounting footprint and rear-connection pitch."},{"question":"What is LV846546's listed depth?","answer":"The depth is 300 mm. This is the front-to-back dimension including the fixed mounting base and rear connection studs."},{"question":"What compliance documentation does this brand provide for LV846546?","answer":"The breaker is designed to EN/IEC 60947-1, EN/IEC 60947-2, EN/IEC 60947-2 Annex H, and IEC 61557-12. It carries suitability for isolation marking per the standard. RoHS and REACH declarations are standard for Schneider Electric MasterPact products; request them with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV846546","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/LV846546 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}}