{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ED1055-1MB00-0BA1","brand":"Siemens","brandSlug":"siemens","productSlug":"6ED1055-1MB00-0BA1","canonicalUrl":"https://aoctrl.com/siemens/6ED1055-1MB00-0BA1","factsUrl":"https://aoctrl.com/api/mcp/products/6ED1055-1MB00-0BA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens LOGO! DM8 12/24R expansion module, 4 digital inputs / 4 relay outputs, 12/24 V DC supply, 2 spacing units wide, IP20.","salesMarkdown":"## I/O complement and relay ratings The 6ED1055-1MB00-0BA1: Four digital inputs accept 12 V DC or 24 V DC (permissible range 10.8 V to 28.8 V DC). The signal '1' threshold is above 8.5 V with a typical input current of 1.5 mA; signal '0' is below 5 V DC. Four relay outputs are rated 5 A resistive (5 A at signal '1' rated value) and 3 A inductive. Lamp load maximum is 1 000 W. There is no short-circuit protection on the outputs. The input-to-output transition times are 1.5 ms for both 0→1 and 1→0 edges, which is fast enough for most discrete logic in LOGO! applications. ## Mounting, approvals, and environmental limits The enclosure is IP20 — suitable for a clean, dry control cabinet only, not for washdown or outdoor placement. Ambient operating range is 0 °C to 55 °C. The module carries CE, UL, CSA, FM, and marine approvals, and is developed per IEC 61131. It is also rated limit class B for residential-area use (EN 55011).","metaTitle":"Siemens 6ED1055-1MB00-0BA1 LOGO! DM8 12/24R, 4 DI/4 DO Relay","metaDescription":"Siemens 6ED1055-1MB00-0BA1 LOGO! DM8 12/24R expansion module. 4 digital inputs, 4 relay outputs rated 5 A resistive. Current production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["PLC I/O & Expansion Modules"],"specifications":{"Max.":"55 °C","Min.":"0 °C","Depth":"55 mm","Width":"36 mm; 2 DU","title":"6ED1055-1MB00-0BA1","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":"*** Spare part *** LOGO! DM8 12/24R expansion module, PS/I/O: 24 V/12 V/24 V/relay, 2 HP, 4 DI/4 DO","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","according to VDE 0631":"Yes","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","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)":"0.05 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$133.35 – $181.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a73ac12e4471645b99f8c88c58a26207.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=440821&mlfb=6ED1055-1MB00-0BA1"},"ai":{"faq":[{"question":"What is the difference between 6ED1055-1MB00-0BA1 and 6ED1055-1FB00-0BA1?","answer":"The 6ED1055-1MB00-0BA1 is the 12/24 V DC version with relay outputs. The 6ED1055-1FB00-0BA1 is the 24 V DC version with transistor (solid-state) outputs. The relay version (this part) handles higher resistive loads (5 A vs typically lower transistor ratings) but has no short-circuit protection on outputs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ED1055-1MB00-0BA1","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/6ED1055-1MB00-0BA1 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}}