{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX3U-64MT/ESS","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"FX3U-64MT-ESS","canonicalUrl":"https://aoctrl.com/mitsubishi/FX3U-64MT-ESS","factsUrl":"https://aoctrl.com/api/mcp/products/FX3U-64MT%2FESS","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi MELSEC-F SERIES, FX3U type, MAIN UNIT, 64 I/O, transistor source, AC supply, expandable to 384 points, 45 W.","salesMarkdown":"## What this unit is and what it isn't The FX3U-64MT/ESS is a Mitsubishi MELSEC-F series main CPU unit with 32 digital inputs and 32 transistor source outputs. It runs on 100-240 VAC and draws 45 W. That means it needs a dedicated circuit with proper isolation — no sharing a panel tap with high-inrush loads. IP10 protection class means zero sealing against dust or moisture. This unit belongs in a clean, dry enclosure — not on a conveyor near coolant mist. USB is listed as an option, not a standard port. If you need USB for programming, verify the variant or add an adapter. For a line-down replacement, the FX3U-64MT/ESS is specified in thousands of existing panels. Source it to order via RFQ; lead time on this mature part typically runs 1-10 working days. ## I/O capacity and expansion Onboard I/O gives you 32 inputs and 32 source outputs. Expand via the MELSEC-F extension bus to a total of 384 local+remote points — enough for a medium skid or machine cell. Program memory is 64K steps in RAM with a buffer battery. Cycle time is 65 ns for LD, 642 ns for MOV — fast enough for most discrete logic but not for nanosecond-level servo loops. ## Does it replace an FX5-C32EYT/D-TS? The FX5U-64MT/DS is a direct CPU module alternative but with different power supply (24 VDC vs AC) and belongs to a newer series. Panel rewire and program conversion are required.","metaTitle":"Mitsubishi FX3U-64MT/ESS PLC CPU, 64 I/O, Transistor Source","metaDescription":"Mitsubishi MELSEC-F FX3U-64MT/ESS main unit. 64 I/O, transistor source outputs, 100-240 VAC. Mature lifecycle, still in production. Order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"USB":"OPTION","Type":"FX3U","title":"FX3U-64MT/ESS","RS-422":"1","Series":"MELSEC-F SERIES","Weight":"1 kg","Expandable":"YES","Output Type":"TRANSISTOR","description":"MAIN UNIT","Current Type":"AC","Output Logic":"SOURCE","Buffer Battery":"YES","Program Memory":"64K STEPS","Shipping Weight":"2 Kg","lifecycle_stage":"mature","Local I/O Points":"256","Power Supply (V)":"100-240","Protection Class":"IP10","Cycle Time LD (ns)":"65","Cycle Time MOV (ns)":"642","Estimated Lead Time":"1 - 10 Working Days","Program Memory Unit":"RAM","Power Consumption (W)":"45","Integrated Digital Inputs":"32","Local + Remote I/O Points":"384","Integrated Digital Outputs":"32","Max. Ambient Temperature (°C)":"55","Min. Ambient Temperature (°C)":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$329.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c208dc66697d8ed4d9c63207c48d1f23.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the USB interface on the FX3U-64MT/ESS?","answer":"USB is listed as an option — it is not a standard built-in port. Confirm the variant or plan for an adapter."},{"question":"What is the type designation of this unit?","answer":"The type is FX3U, part of the MELSEC-F SERIES."},{"question":"Will the FX3U-64MT/ESS drop into a panel specified for an FX5-C32EYT/D-TS?","answer":"No. The FX5-C32EYT/D-TS is an extension module, not a CPU. The FX3U is a main unit with different dimensions, wiring, and functionality."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/FX3U-64MT-ESS","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/mitsubishi/FX3U-64MT-ESS 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}}