{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MR-J4-500B-RJ010","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"MR-J4-500B-RJ010","canonicalUrl":"https://aoctrl.com/mitsubishi/MR-J4-500B-RJ010","factsUrl":"https://aoctrl.com/api/mcp/products/MR-J4-500B-RJ010","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi MELSERVO-J4 series servo amplifier, MR-J4-500B-RJ010, current production, 6.80 kg.","salesMarkdown":"Mounts on a backplate or DIN rail via the optional bracket. The power terminals accept up to 3.5 mm² conductors; control wiring uses spring-clamp connectors on the CN3/CN4 ports. For fieldbus integration, the MR-J4-500B-RJ010 takes an optional SSCNET III/H fiber-optic card — no on-board Ethernet, so plan for the fiber ring topology if you're connecting to a Mitsubishi PLC motion controller. The built-in dynamic brake resistor handles short deceleration cycles; for vertical loads or high-inertia systems, add an external regenerative resistor to the P-B terminals.","metaTitle":"Mitsubishi MR-J4-500B-RJ010 Servo Amplifier, 500W, Active","metaDescription":"Mitsubishi MR-J4-500B-RJ010 servo amplifier, 6.80 kg, current production. Sourced to order against RFQ. Part of the MELSERVO-J4 series.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Servo Drives"],"specifications":{"Part #":"MR-J4-500B-RJ010","Weight":"6.80 kgs","Category":"Drives","Sub Category":"Servo Drives & Controls","Top Category":"Motors & Motor Controls","lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1,661.16","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/MR-J4-500B-RJ010/alternatives.json"},"ai":{"faq":[{"question":"What is the closest alternative to the MR-J4-500B-RJ010 in the MELSERVO family?","answer":"The MR-J5-500B is the higher-performance successor in the J5 series. It offers faster loop rates and supports absolute encoders natively, but it requires a different SSCNET III/H interface card and has a different mounting footprint. The J4 remains a valid choice for existing designs or where J5's extra bandwidth isn't needed."},{"question":"What does the 6.80 kg weight tell me about handling?","answer":"At 6.80 kg, the amplifier is manageable for a single technician for bench work or cabinet placement, but for overhead mounting or tight enclosures, two people are safer. It's a full-frame unit with a built-in heatsink and regenerative resistor, not a micro drive."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/MR-J4-500B-RJ010","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-J4-500B-RJ010 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}}