{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV846439","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV846439","canonicalUrl":"https://aoctrl.com/schneider/LV846439","factsUrl":"https://aoctrl.com/api/mcp/products/LV846439","rawCanonicalId":null},"summary":{"shortDescription":"Circuit breaker frame, MasterPact MTZ1 12H3 fixed for MicroLogic X, 1250A, 66kA/415VAC (Icu), 3P","salesMarkdown":null,"metaTitle":null,"metaDescription":null,"metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":[],"specifications":{"Depth":"8.2 in (209 mm)","Range":"MasterPacT","Width":"10.9 in (276 mm)","Height":"11.9 in (301 mm)","Standards":"EN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H IEC 61557-12","Control Type":"Push-button","Control unit":"Without control unit","Product name":"MasterPact MTZ1","Mounting Mode":"Fixed","Sensor rating":"630 A 800 A 1000 A 1250 A","lifecycle_stage":"current","Connection pitch":"2.8 in (70 mm)","Mounting Support":"Rails Base plate","Performance type":"H3 66 kA 415 V AC","Pollution degree":"3 IEC 60947-1","Device short name":"MTZ1 12 H3","Poles description":"3P","Upside connection":"Front Rear","Device Application":"Power distribution protection","Line Rated Current":"1250 A 104 °F (40 °C)","Operating altitude":"0...6561.68 ft (0...2000 m) without derating 2000...5000 m with derating","Downside connection":"Front Rear","Selectivity category":"Category B","Electrical durability":"6000 cycles 440 V AC 50/60 Hz at In EN/IEC 60947-2 AC-23A 6000 cycles 440 V AC 50/60 Hz at In EN/IEC 60947-3 AC-3 6000 cycles 440 V AC 50/60 Hz at In EN/IEC 60947-3","Maximum breaking time":"25 ms","Mechanical durability":"10000 cycles with periodic preventive maintenance","Nbr. of units in pkg.":"1","Power dissipation in W":"130 W","IP degree of protection":"IP30 conforming to EN 60529","Product or Component Type":"Circuit breaker","Suitability for isolation":"Yes EN/IEC 60947-2","Maximum closing response time":"50 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...185 °F (-40...85 °C)","Ambient Air Temperature for Operation":"-13...158 °F (-25...70 °C)","[Ics] rated service breaking capacity":"50 kA 440 V AC 50/60 Hz 50 kA 220/415 V AC 50/60 Hz","[Uimp] rated impulse withstand voltage":"12 kV","[Icw] rated short-time withstand current":"30 kA 3 s 50 kA 1 s 50 kA 0.5 s","[Icm] rated short-circuit making capacity":"145 kA 220/415 V AC 50/60 Hz 145 kA 440 V AC 50/60 Hz","Integrated instantaneous protection (DIN in kA peak)":"94.5...115.5 kA","[Icu] rated ultimate short-circuit breaking capacity":"66 kA 220/415 V AC 50/60 Hz 66 kA 440 V AC 50/60 Hz"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3,097.99 – $3,252.88","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f173f30c89238a25ac47b25acb22dfc8.pdf","sourceUrl":"https://www.se.com/th/en/product/LV846439/circuit-breaker-frame-masterpact-mtz1-12h3-fixed-for-micrologic-x-1250a-66ka-415vac-icu-3p/","alternativesUrl":"https://aoctrl.com/api/mcp/products/LV846439/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV846439","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/LV846439 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:21:01.794Z","lastPublished":"2026-09-02T08:21:01.794Z","indexable":true}}