{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"Q65B","brand":"Mitsubishi Electric","brandSlug":"mitsubishi","productSlug":"Q65B","canonicalUrl":"https://aoctrl.com/mitsubishi/Q65B","factsUrl":"https://aoctrl.com/api/mcp/products/Q65B","rawCanonicalId":null},"summary":{"shortDescription":"Mitsubishi Q Series Extension Base Unit, Q65B, 5 slots, 1 power supply slot, mature lifecycle stage.","salesMarkdown":"The Q65B is a 5-slot extension base unit for Mitsubishi's Q Series programmable logic controllers. One of those slots is dedicated to the power supply module, leaving four slots free for CPU, I/O, or special-function modules. It accepts any standard Q Series module, so the slot layout follows the same backplane rules as the main base — no special mapping required. ## What the Slot Count Means for Your Panel Five slots total, one reserved for the power supply. That gives you four usable slots for the rest of the system. In a typical Q Series rack, the CPU occupies slot 0 (closest to the power supply), leaving three slots for I/O or special modules. If your design calls for more than three I/O slices plus a CPU, you either need a larger base (like the Q68B with eight slots) or a second extension base daisy-chained via the extension cable. The physical dimensions — 37 cm long, 12.5 cm deep, 6 cm high — fit a standard 600 mm deep enclosure with room for wiring ducts on either side.","metaTitle":"Mitsubishi Q65B Extension Base Unit, 5 Slots, Q Series","metaDescription":"Q65B extension base unit for Mitsubishi Q Series PLCs. 5 slots, 1 dedicated for power supply. Mature lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Slots":"5","title":"Q65B","Series":"Q Series","Weight":"0.43Kg","Product No.":"Q65B","description":"Extension Base Unit","Product Type":"Extension Base Unit","Shipping Weight":"1.5Kg","lifecycle_stage":"mature","Module To Use With":"Q Series Module","Dimensions (L x W x H)":"37cm x 12.5cm x 6cm","Slots For Power Supply":"1","Estimated Delivery Time":"1 - 10 Working days."}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$104.00 – $114.30","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/da4b644c88e513579340c278f6ec2283.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How many slots does the Q65B have, and how many are usable?","answer":"The Q65B has 5 slots total. One slot is reserved for the power supply module, leaving 4 slots for CPU, I/O, or special-function modules."},{"question":"What series does the Q65B belong to?","answer":"The Q65B is part of the Mitsubishi Q Series of programmable logic controllers."},{"question":"Will the Q65B drop into a panel designed for the FX3S-20MR/ES?","answer":"No. The Q65B is a Q Series extension base unit, while the FX3S-20MR/ES is a compact PLC from the FX3S family. They use different form factors, backplane architectures, and wiring schemes — no direct interchangeability."},{"question":"What compliance documentation is available for the Q65B?","answer":"The evidence does not list specific compliance certifications (RoHS, REACH, UL, IEC) for the Q65B. Standard Mitsubishi Q Series products typically carry CE and UL marks, but confirm the specific documentation with your order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/mitsubishi/Q65B","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/Q65B 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}}