{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MR-J4-70B-EB","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"MR-J4-70B-EB","canonicalUrl":"https://aoctrl.com/mitsubishi/MR-J4-70B-EB","factsUrl":"https://aoctrl.com/api/mcp/products/MR-J4-70B-EB","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi MELSERVO-J4 general purpose AC servo amplifier, MR-J4-70B-EB, 750 W rated output, SSCNET III/H motion network interface, 1-phase 200-240 VAC input, IP20 forced-cooled open-frame.","salesMarkdown":"The Mitsubishi MR-J4-70B-EB is a MELSERVO-J4 series general-purpose AC servo amplifier delivering 750 W rated output (0.75 kW) for driving rotary servo motors on a 1-phase 200 VAC to 240 VAC supply at 50/60 Hz. It communicates over the SSCNET III/H high-speed motion network (interface code B), making it a direct-fit node in Mitsubishi's synchronized multi-axis systems — think packaging lines, pick-and-place cells, or any application where the controller coordinates several axes over a single fiber-optic ring. The amplifier is force-cooled and open-frame rated IP20, so it expects a clean, ventilated cabinet environment — not washdown or outdoor duty. ## Power supply and control interface Main power input is single-phase 200–240 VAC; the amplifier draws 30 W of control power and requires a separate 24 VDC ±10% interface supply capable of 0.3 A (including the CN8 connector signal). The load-side encoder interface uses Mitsubishi high-speed serial communication, so motor feedback runs on a dedicated serial link back to the amplifier — no incremental A/B quadrature wiring to the controller.","metaTitle":"Mitsubishi MR-J4-70B-EB AC Servo Amplifier, 750 W, SSCNET II","metaDescription":"Mitsubishi MR-J4-70B-EB MELSERVO-J4 servo amplifier, 750 W rated output, SSCNET III/H interface, 1-phase 200-240 VAC. Current production. Available to order — request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Drives"],"specifications":{"MR-J4":"Mitsubishi general purpose AC servo amplifier MELSERVO-J4","Power":"750(W)","Weight":"1.4 Kg","Frequency":"1.6KHZ KHz","Interface":"B = SSCNET III/H","Application":"Drainage pump","Product No.":"MR-J4-70B-EB","Manufacturer":"Mitsubishi","Product Type":"AC SERVO DRIVE","Product type":"Servo Amplifier","Shipping Weight":"3 Kg","lifecycle_stage":"current","Rated output [kW]":"70 = 0.75","Voltage/frequency":"1-phase 200 V AC to 240 V AC, 50/60 Hz","Estimated Lead Time":"Usually ships in 1 - 10 working days.","Power consumption [W]":"30","Structure (IP rating)":"Force cooling, open (IP20)","Interface power supply":"24 V DC ± 10% (required current capacity: 0.3 A (including CN8 connector signal))","Load-side encoder interface":"Mitsubishi high-speed serial communication"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2,144.12 – $2,189.00","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ff1d83456a9a5293dce06e47cf721556.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/MR-J4-70B-EB/alternatives.json"},"ai":{"faq":[{"question":"What motion network does MR-J4-70B-EB use?","answer":"The MR-J4-70B-EB uses SSCNET III/H (interface code B), Mitsubishi's high-speed fiber-optic motion network for synchronized multi-axis control."},{"question":"What power supply does MR-J4-70B-EB require?","answer":"Main power is 1-phase 200–240 VAC, 50/60 Hz. A separate 24 VDC ±10% interface supply at 0.3 A is also required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/MR-J4-70B-EB","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/MR-J4-70B-EB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}