{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LV848357","brand":"Schneider Electric","brandSlug":"schneider","productSlug":"LV848357","canonicalUrl":"https://aoctrl.com/schneider/LV848357","factsUrl":"https://aoctrl.com/api/mcp/products/LV848357","rawCanonicalId":null},"summary":{"shortDescription":"Schneider Electric MasterPacT MTZ3, LV848357, 4P drawout circuit breaker, 6300 A rated current, H2 150 kA 415 V AC performance class.","salesMarkdown":"## MasterPact MTZ3 6300 A — what this breaker delivers The Schneider Electric LV848357 is a MasterPact MTZ3 drawout circuit breaker rated for 6300 A continuous at 40 °C, making it the highest-current frame in the MTZ3 line. Category B selectivity (per EN/IEC 60947-2) means it holds its short-time withstand rating of 100 kA for up to 3 s, so downstream breakers clear a fault before this main trips. That 3 s withstand window is what lets you coordinate a multi-tier distribution panel without a full cascade. The drawout chassis isolates the breaker from the busbars for maintenance or swap-out without de-energizing the entire switchboard. Rear connection top and bottom keeps the cable entry plane clean. The 4-pole configuration with neutral on the right side matches the standard North American and European panel layout for full-phase plus neutral protection. ## Breaking capacity and short-time ratings — the coordination numbers The H2 performance class gives you 150 kA Ics (service breaking capacity) at 440 V AC, not just at the lower 415 V reference. At 690 V AC it still holds 100 kA Ics. Short-time withstand Icw is flat at 100 kA for 0.5, 1, or 3 s — that plateau is unusual; most breakers derate Icw as duration increases. It means this breaker can ride through a delayed downstream fault without degrading its own contacts. Maximum breaking time is 25 ms, closing response 80 ms. Those are the electromechanical limits; the actual arc-extinction time depends on the Micrologic control unit (ordered separately — this listing is the breaker chassis without a trip unit). The 12 kV impulse withstand (Uimp) and 1000 V rated insulation voltage confirm it is built for 690 V AC switchgear with safety margin. ## Lifecycle and sourcing — active production, quoted to order Standards compliance covers EN/IEC 60947-1, -2, and -2 Annex H (EMC for circuit-breakers with electronic trip units), plus IEC 61557-12 for power metering. Isolation suitability is certified per EN/IEC 60947-2, so it doubles as a visible-break disconnect when racked out. ## Mounting and integration — what fits in the switchboard Altitude derating starts above 2000 m. Power dissipation at rated current is 900 W — that heat must be vented in the enclosure design; it is not a sealed-panel breaker. IP30 protection means tools or fingers cannot contact live parts but the breaker is not washdown-rated; it belongs in a locked switchgear cubicle.","metaTitle":"LV848357 MasterPact MTZ3 6300A Drawout Circuit Breaker, H2 1","metaDescription":"LV848357 MasterPact MTZ3 6300A drawout circuit breaker, H2 performance class with 150 kA breaking capacity at 415 V AC. Active production, sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Circuit Breaker Accessories"],"specifications":{"Depth":"Drawout circuit breaker with chassis: 403 mm Drawout circuit breaker without chassis: 300 mm","Range":"MasterPacT","Width":"Drawout circuit breaker with chassis: 1016 mm Drawout circuit breaker without chassis: 838 mm","title":"LV848357","Height":"Drawout circuit breaker with chassis: 479 mm Drawout circuit breaker without chassis: 300 mm","Standards":"EN/IEC 60947-1 EN/IEC 60947-2 EN/IEC 60947-2 Annex H IEC 61557-12","description":"Circuit breaker frame, MasterPact MTZ3 63H2 drawout for MicroLogic X, 6300A, 150kA/415VAC (Icu), 4P right neutral","Control type":"Push-button","Control unit":"Without control unit","Product name":"MasterPact MTZ3","Mounting mode":"Drawout","Sensor rating":"3200 A 4000 A 5000 A 6300 A","lifecycle_stage":"current","Connection pitch":"230 mm","Mounting support":"Rails Base plate","Neutral position":"Right","Performance type":"H2 150 kA 415 V AC","Pollution degree":"3 conforming to IEC 60947-1","Device short name":"MTZ3 63 H2","Poles description":"4P","Upside connection":"Rear","Device application":"Power distribution protection","Operating altitude":"0...2000 m without derating 2000...5000 m with derating","[In] rated current":"6300 A at 40 °C","Downside connection":"Rear","Selectivity category":"Category B","Electrical durability":"AC-3: 6000 cycles 440/690 V AC 50/60 Hz conforming to EN/IEC 60947-3 1500 cycles 440 V AC 50/60 Hz conforming to EN/IEC 60947-2 1500 cycles 690 V AC 50/60 Hz conforming to EN/IEC 60947-2 AC-23A: 1500 cycles 440 V AC 50/60 Hz conforming to EN/IEC 60947-3 AC-23A: 1500 cycles 690 V AC 50/60 Hz conforming to EN/IEC 60947-3","Maximum breaking time":"25 ms","Mechanical durability":"10000 cycles with periodic preventive maintenance","Power dissipation in W":"900 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":"80 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":"150 kA at 220/415 V AC 50/60 Hz 150 kA at 440 V AC 50/60 Hz 130 kA at 500/525 V AC 50/60 Hz 100 kA at 660/690 V AC 50/60 Hz","[Uimp] rated impulse withstand voltage":"12 kV","[Icw] rated short-time withstand current":"100 kA 0.5 s 100 kA 1 s 100 kA 3 s","[Icm] rated short-circuit making capacity":"330 kA 220/415 V AC at 50/60 Hz 330 kA 440 V AC at 50/60 Hz 286 kA 500/525 V AC at 50/60 Hz 220 kA 660/690 V AC at 50/60 Hz","Integrated instantaneous protection (DIN in kA peak)":"243...297 kA","[Icu] rated ultimate short-circuit breaking capacity":"150 kA at 220/415 V AC 50/60 Hz 150 kA at 440 V AC 50/60 Hz 130 kA at 500/525 V AC 50/60 Hz 100 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/abd0ac7eea03a9234a13ce46f0dfe279.pdf","sourceUrl":"https://www.se.com/th/en/product/LV848357/circuit-breaker-frame-masterpact-mtz3-63h2-drawout-for-micrologic-x-6300a-150ka-415vac-icu-4p-right-neutral/"},"ai":{"faq":[{"question":"What is the breaking capacity of LV848357?","answer":"The H2 performance class provides 150 kA Ics at 415/440 V AC, 130 kA at 500/525 V, and 100 kA at 690 V. Icw short-time withstand is 100 kA for up to 3 seconds."},{"question":"What is the rated current of this MasterPact MTZ3 breaker?","answer":"6300 A continuous at 40 °C ambient, with sensor ratings available from 3200 A through 6300 A depending on the trip unit selected."},{"question":"Where can I buy LV848357 and what is the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time — request a quote for your required quantity and delivery window."},{"question":"What compliance documentation does Schneider provide for LV848357?","answer":"The breaker is certified to EN/IEC 60947-1, EN/IEC 60947-2, EN/IEC 60947-2 Annex H, and IEC 61557-12. Isolation suitability per EN/IEC 60947-2 is confirmed. Pollution degree 3 per IEC 60947-1. Specific RoHS/REACH declarations are available from Schneider's documentation portal using the LV848357 order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/schneider/LV848357","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/LV848357 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}}