{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ED10521FB080BA2","brand":"Siemens","brandSlug":"siemens","productSlug":"6ED10521FB080BA2","canonicalUrl":"https://aoctrl.com/siemens/6ED10521FB080BA2","factsUrl":"https://aoctrl.com/api/mcp/products/6ED10521FB080BA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens LOGO! 8.4, 6ED10521FB080BA2, (8) Digital Inputs, (4) Digital Relay Outputs, LCD Display, 115–230 V AC/DC, DIN Rail Mount.","salesMarkdown":"## Module at a glance The Siemens 6ED10521FB080BA2 is a LOGO! 8.4 logic module with 8 digital inputs and 4 relay outputs. It runs on 115 to 230 V AC or DC, includes a backlit LCD, and is fully expandable via the LOGO! bus. Relay outputs switch up to 10 A per contact, suitable for direct control of small contactors, solenoid valves, or indicator lamps within the rated range. ## Mounting and footprint Snaps onto DIN rail. Dimensions: 72.898 mm high, 81.026 mm wide, 59.944 mm deep. Works standalone or with expansion modules. The integrated web server serves user-defined pages over Ethernet. ## Timers, counters, and data logging 400 software timers and 400 counters available in the 8.5 KB program memory. A real-time clock is included, along with a 480-hour capacitor-backed data buffer to retain program state and log data during power loss. Confirmed fit for a BOM line calling for an 8-in/4-out logic module with 115–230 V supply, LCD interface, and expandability.","metaTitle":"Siemens 6ED10521FB080BA2 LOGO! 8.4 Logic Module, 8DI/4DO, LC","metaDescription":"Current-production Siemens LOGO! 8.4 logic module with 8 digital inputs, 4 relay outputs, LCD display, 230V AC/DC supply, real-time clock, and 480 hr data buffer. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":[],"specifications":{"title":"6ED10521FB080BA2","series":"LOGO! 8.4","has_mpn":"6ED10521FB080BA2","depth_mm":"59.944","weight_g":"1000","width_mm":"81.026","height_mm":"72.898","Input Count":"(8) Digital","data_buffer":"480 hrs","description":"SIEMENS Logic Module: (8) Digital, (4) Digital, 115 to 230V AC: 115/230V DC","Output Count":"(4) Digital","display_type":"LCD","feature_list":"Data Log; Integrated Web Server; Modular Expandable; User-Defined Web Pages","__GROUP_MIN__":"-40 °C | max.: 70 °C","counter_count":"400","mounting_type":"DIN Rail","terminal_type":"Screw Terminal","altitude_max_m":"1080","clock_included":"Clock Included","lifecycle_stage":"current","memory_capacity":"8.5 KB","rated_voltage_v":"230","Number Of Timers":"400","lower_limit_text":"47 Hz","supply_voltage_v":"230","upper_limit_text":"63 Hz","__COND_AC_RATED__":"115 V AC | 230 V AC; 240 V AC","__COND_DC_RATED__":"115 V DC | 230 V DC; 240 V DC","expandability_text":"Expandable","has_realtime_clock":"True","digital_output_type":"Relay","switching_current_a":"10","voltage_range_dc_max_v":"253","voltage_range_dc_min_v":"100"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$97.79 – $179.50","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a73ac12e4471645b99f8c88c58a26207.pdf","sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/6ED10521FB080BA2/alternatives.json"},"ai":{"faq":[{"question":"What's the difference between 6ED10521FB080BA2 and 6ED1052-1FB08-0BA2?","answer":"They are identical products. The dash-separated format 6ED1052-1FB08-0BA2 is an alternate representation of the same Siemens order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ED10521FB080BA2","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6ED10521FB080BA2 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}}