{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6ED1055-1FB00-0BA2","brand":"Siemens","brandSlug":"siemens","productSlug":"6ED1055-1FB00-0BA2","canonicalUrl":"https://aoctrl.com/siemens/6ED1055-1FB00-0BA2","factsUrl":"https://aoctrl.com/api/mcp/products/6ED1055-1FB00-0BA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens LOGO! expansion module, 4 digital inputs, 4 relay outputs, 115/230 V AC/DC supply, 5 A resistive / 3 A inductive, 35 mm DIN rail, 2 SU wide, IP20.","salesMarkdown":"The Siemens 6ED1055-1FB00-0BA2 is a LOGO! expansion module that adds 4 digital inputs and 4 relay outputs to a LOGO! base unit. It accepts 115 V or 230 V supply, both AC and DC, so it can sit in panels fed from a control transformer or a DC bus without a separate power supply module. The 58 mm depth keeps it flush with other modules in the rail stack. Rated IP20, so it belongs inside an enclosure — not on the machine surface where washdown or dust would reach it. Each relay output handles 5 A resistive load (e.g. contactor coils with proper suppression, indicator lamps) and 3 A inductive load (small solenoid valves, relays). The 5 A rating is the per-channel maximum; if you parallel outputs for a single load, stay within the package limit — the listed 5 A is the per-channel ceiling. For lamp loads, the module is rated 1 000 W at 230 V AC, but drops to 500 W at 115 V AC — the inrush from cold filaments is the limiting factor, not steady-state current. Input signal thresholds are defined for both AC and DC: a logical \"1\" requires >79 V AC or >79 V DC; \"0\" is <40 V AC or <30 V DC. That means it works with standard 115 V or 230 V control signals without extra interface relays. Response time from input change to output update is 40 ms on the rising edge and 75 ms on the falling edge — fast enough for most process interlocks, but not for high-speed counting or safety-rated stop circuits. ## Ambient limits and approvals Rated for 0 °C to 55 °C ambient. If you have a firmware version ES03 or higher, the lower limit extends to -20 °C — useful for unheated storage or outdoor cabinets in temperate climates. Developed in accordance with IEC 61131 and VDE 0631.","metaTitle":"Siemens LOGO! 6ED1055-1FB00-0BA2 4DI/4Relay, 115-230 V AC/DC","metaDescription":"Siemens LOGO! 6ED1055-1FB00-0BA2 expansion module: 4 digital inputs, 4 relay outputs, 5 A resistive, 3 A inductive, 115/230 V AC/DC. CE, UL, CSA, FM, marine approved. Current lifec","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":"6ED1055-1FB00-0BA2","Height":"90 mm","CE mark":"Yes","115 V AC":"Yes","115 V DC":"Yes","230 V AC":"Yes","230 V DC":"Yes","Mounting":"on 35 mm DIN rail, 2 spacing units wide","FM approval":"Yes","UL approval":"Yes","description":"LOGO! DM8 230R expansion module, PS/I/O: 230V/230V/relay, 2 MW, 4 DI/4 DO for LOGO! 8","CSA approval":"Yes","For Uprating":"No","For Signal \"0\"":"< 40 V AC, < 30 V DC","For Signal \"1\"":"> 79 V AC, > 79 V DC","Marine approval":"Yes","lifecycle_stage":"current","Mechanical, Max.":"10 Hz","On Lamp Load, Max.":"1 000 W; 500 W at 115V AC","At \"0\" To \"1\", Max.":"40 ms","At \"1\" To \"0\", Max.":"75 ms","For Signal \"1\", Typ.":"0.13 mA","Type of input voltage":"AC/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","Controlling a digital input":"Yes","Permissible Range, Lower Limit":"47 Hz","Permissible Range, Upper Limit":"63 Hz","For Signal \"1\" Minimum Load Current":"100 mA","permissible range, lower limit (DC)":"100 V","permissible range, upper limit (DC)":"253 V","developed in accordance with IEC 61131":"Yes","Limit class B, for use in residential areas":"Yes","For Signal \"0\", Max. (Permissible Quiescent Current)":"0.06 mA; 0.05 mA with AC, 0.06 mA with DC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$52.07 – $129.93","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e2cc2fdf5114e23e182ff112332f34f4.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=249274&mlfb=6ED1055-1FB00-0BA2"},"ai":{"faq":[{"question":"What are the key ratings for this module?","answer":"4 digital inputs, 4 relay outputs rated 5 A resistive / 3 A inductive, supply 115/230 V AC/DC, ambient 0 °C to 55 °C (ES03+ extends to -20 °C)."},{"question":"Will 6ED1055-1FB00-0BA2 drop into a panel that was specified around 6ED1052-1FB00-0BA6 without rewiring?","answer":"Both modules mount on 35 mm DIN rail and share the same 2-SU width, so the mechanical fit is identical. The 6ED1055-1FB00-0BA2 has 4 relay outputs versus the 6ED1052-1FB00-0BA6's 4 digital outputs, so the wiring differs on the output side — you'd need to account for relay coil suppression and the higher current capability. Input-side wiring is the same."},{"question":"What compliance documentation is available for this module?","answer":"It carries CE, UL, CSA, FM, and marine approvals, and is developed in accordance with IEC 61131 and VDE 0631."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6ED1055-1FB00-0BA2","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/6ED1055-1FB00-0BA2 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}}