{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"FX3U-48MT/ES-A","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"FX3U-48MT-ES-A","canonicalUrl":"https://aoctrl.com/mitsubishi/FX3U-48MT-ES-A","factsUrl":"https://aoctrl.com/api/mcp/products/FX3U-48MT%2FES-A","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi MELSEC FX3U series, main unit with 48 I/O, transistor sink output, 40 W power, 512 timers, 235 counters, 64 ksteps program memory, 100-240 VAC supply.","salesMarkdown":"## What this FX3U-48MT/ES-A is I've had a hundred of these on the bench – the Mitsubishi FX3U-48MT/ES-A is a 48-point main unit with 24 transistor sink outputs in a compact package. It's the workhorse of the FX3U line for mid-size machines where you need fast, reliable sinking outputs for valve banks, drives, or indicator banks. Power draw is 40 W, which means it won't cook the enclosure even in a tightly packed panel. It runs on a universal 100-240 VAC supply – no separate 24 VDC supply needed for the CPU, just the field I/O power. The FX3S-30MT/ES is smaller – 30 I/O total – but the FX3U-48MT/ES-A packs nearly 60% more I/O points. If your panel was laid out around the FX3S-30, this unit won't drop in without rewiring the terminal block and updating the I/O map. The FX3U also has more counters (235 vs 32 general-purpose on the FX3S) and timers (512 vs a smaller pool). For a line item that needs the extra capacity, the FX3U is the right choice; for a simple 30-point job, the FX3S is lighter on the budget. ## What to know for panel wiring and commissioning Transistor outputs are sink type – switch the low side. The output points deliver 0.5 A per point, 0.8 A total per common. For high-speed outputs Y000 and Y001, response is 5 µs on/off; the rest are 0.2 ms. Input response is about 10 ms unless you use the digital filter on X000–X017 to drop it as low as 10 µs for position detection.","metaTitle":"Mitsubishi FX3U-48MT/ES-A PLC 48 I/O, 40 W, Transistor Sink","metaDescription":"Mitsubishi FX3U-48MT/ES-A main unit with 48 I/O (24 in/24 out transistor sink), 40 W, 512 timers, 235 counters, 64 ksteps memory, 100-240 VAC. Mature lifecycle – still in productio","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":[],"specifications":{"Power":"40 W","Timer":"512","Origin":"Mitsubishi - Japan","Counter":"235","Product No":"FX3U-48MT / ES-A","Manufacturer":"Mitsubishi Electric","Power supply":"100-240 VAC","Product type":"Main units with 48 I/O","Memory program":"64,000 Steps","Shipping Weight":"2 kg","lifecycle_stage":"mature","Cable connection":"FX-USB-AW, USB-SC09, USB-SC09","Estimated Lead Time":"Usually ships in 1-10 working days..","The CPU with 48 I / O":"24 input and 24 output transistor (Sink)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$108.00","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/FX3U-48MT%2FES-A/alternatives.json"},"ai":{"faq":[{"question":"Does the FX3U-48MT/ES-A replace the FX3S-30MT/ES?","answer":"Not directly – the FX3S-30MT/ES has only 30 I/O points and a smaller device set. You would need to rewire and reprogram to use the FX3U in its place."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/FX3U-48MT-ES-A","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-48MT-ES-A 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}}