{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ED1055-1MB00-0BA2","brand":"Siemens","brandSlug":"siemens","productSlug":"6ED1055-1MB00-0BA2","canonicalUrl":"https://aoctrl.com/siemens/6ED1055-1MB00-0BA2","factsUrl":"https://aoctrl.com/api/mcp/products/6ED1055-1MB00-0BA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens LOGO! DM8 12/24R expansion module, 6ED1055-1MB00-0BA2, 4 digital inputs / 4 relay outputs, 12/24 V DC supply, 2 SU wide on DIN rail.","salesMarkdown":"## What This Module Delivers The Siemens 6ED1055-1MB00-0BA2 is a LOGO! DM8 12/24R expansion module — 4 digital inputs plus 4 relay outputs, powered from a 10.8 V to 28.8 V DC supply. For a controls integrator, that means 4 discrete input channels and 4 relay-driven output channels added to a LOGO! 8 base controller without pulling a separate power rail. The relay outputs are rated 5 A on resistive loads and 3 A on inductive loads — enough for direct switching of small contactors, solenoid valves, or indicator lamps up to 1 000 W. The 1.5 ms transition time on both edges keeps the I/O map predictable for time-sensitive sequences. Depth is 58 mm, height 90 mm — fits standard shallow enclosures. IP20 means it belongs inside a locked cabinet, not on the machine frame. The ambient range is 0 °C to 55 °C; for firmware ES03 and higher the cold end extends to -20 °C, which matters for unheated electrical rooms in winter climates. Input thresholds are TTL-compatible: signal \"0\" below 5 V DC, signal \"1\" above 8.5 V DC, with a typical 1.5 mA draw at the \"1\" state. The quiescent current at \"0\" must stay under 0.88 mA — a spec to check when sharing a sensor supply with other modules. Approvals include CE (for the European market), UL and CSA (North American panel acceptance), FM (for industrial machinery), and marine certification — so it passes inspection on a shipboard panel or a factory floor with equal standing. Developed in accordance with IEC 61131, and rated limit class B for residential-area interference limits.","metaTitle":"Siemens 6ED1055-1MB00-0BA2 LOGO! DM8 12/24R, 4 DI/4 DO Relay","metaDescription":"Siemens LOGO! DM8 12/24R expansion module. 4 digital inputs, 4 relay outputs rated 5 A resistive. 10.8-28.8 V DC supply. Active production. UL, CSA, CE, FM, marine approvals.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Digital Input Modules"],"specifications":{"Max.":"55 °C","Min.":"0 °C; ES03 and higher: -20 °C","Depth":"58 mm","Width":"35.5 mm","title":"6ED1055-1MB00-0BA2","Height":"90 mm","12 V DC":"Yes","24 V DC":"Yes","CE mark":"Yes","Mounting":"on 35 mm DIN rail, 2 spacing units wide","FM approval":"Yes","UL approval":"Yes","description":"LOGO! DM8 12/24R expansion module, PS/I/O: 12, 24V/12V/24V/relay, 2 MW, 4 DI/4 DO for LOGO! 8","CSA approval":"Yes","For Uprating":"No","For Signal \"0\"":"< 5 V DC","For Signal \"1\"":"> 8.5 V","Marine approval":"Yes","lifecycle_stage":"current","Mechanical, Max.":"10 Hz","On Lamp Load, Max.":"1 000 W","At \"0\" To \"1\", Max.":"1.5 ms","At \"1\" To \"0\", Max.":"1.5 ms","For Signal \"1\", Typ.":"1.5 mA","Type of input voltage":"DC","IP degree of protection":"IP20","Number of digital inputs":"4","Short-circuit protection":"No","Number of digital outputs":"4; Relays","With Inductive Load, Max.":"3 A","With Resistive Load, Max.":"5 A","For Signal \"1\" Rated Value":"5 A","Controlling a digital input":"Yes","For Signal \"1\" Minimum Load Current":"100 mA","permissible range, lower limit (DC)":"10.8 V","permissible range, upper limit (DC)":"28.8 V","developed in accordance with IEC 61131":"Yes","Limit class B, for use in residential areas":"Yes","For Signal \"0\", Max. (Permissible Quiescent Current)":"0.88 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$52.07 – $129.93","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/28a69cc88ec6d5e1e1f258a00f698eab.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=74794&mlfb=6ED1055-1MB00-0BA2"},"ai":{"faq":[{"question":"What is the closest functional second-source — 6ED1052-1MD00-0BA6?","answer":"The 6ED1052-1MD00-0BA6 is a different LOGO! variant (a base module, not an expansion). It will not drop into the same panel position without rewiring. For a direct expansion-module replacement, stick with the 6ED1055-1MB00-0BA2 or a same-family expansion module with identical I/O count and supply range."},{"question":"What is the maximum ambient temperature rating?","answer":"55 °C. The minimum is 0 °C; for firmware ES03 and higher the lower limit extends to -20 °C."},{"question":"Will 6ED1055-1MB00-0BA2 drop into a panel specified around 6ED1052-1MD00-0BA6 without rewiring?","answer":"No. The 6ED1052-1MD00-0BA6 is a LOGO! base module with its own power supply and display; the 6ED1055-1MB00-0BA2 is an expansion module that connects via the LOGO! 8 backplane bus. The wiring and mounting footprint differ."},{"question":"What compliance documentation does this module carry?","answer":"CE, UL, CSA, FM, and marine approvals are listed. It is developed in accordance with IEC 61131 and rated limit class B for residential interference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ED1055-1MB00-0BA2","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/6ED1055-1MB00-0BA2 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}}