{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1055-1HB00-2BY0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1055-1HB00-2BY0","canonicalUrl":"https://aoctrl.com/siemens/6AG1055-1HB00-2BY0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1055-1HB00-2BY0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 6AG1055-1HB00-2BY0, SIPLUS digital I/O module, 4 digital inputs and 4 relay outputs (5 A resistive), 24 V AC/DC supply, DIN-rail mount, -40 °C to 70 °C operating range.","salesMarkdown":"## What this module is ## Ratings that drive the fit decision Relay contacts are rated 5 A resistive per point, but the inductive ceiling is 3 A per relay, and the resistive figure halves to 3 A above 55 °C with a 5 A / 10 A-burst allow-and-decay shape — meaning the continuous current a wireman can assume is 3 A per point in a hot cabinet, not 5 A. Outputs carry no built-in short-circuit protection, so the branch protection has to live upstream in the panel — that decides the fusing layout on every drawing. Supply window is 20.4–28.8 V DC, but it tightens to 22–27.5 V once the cabinet runs above 55 °C; if a retrofit lands in a hot enclosure, the DC rail tolerance shrinks and a buck-rated PSU may stop being acceptable. Operating temperature spans -40 °C to 70 °C, with the UL/cUL use file accepting up to 55 °C — the wider -40 to 70 range is the industrial envelope, but the UL recognition is what governs a North American panel. Installation altitude is rated to 5 000 m with a stepped derate — Tmax − 10 K above 2 000 m and Tmax − 20 K above 3 500 m — so a high-elevation site loses thermal headroom, not the part's ability to be installed. ## Where it lands in a panel With four relay outputs and four digital inputs, the module is sized for distributed control of small loads — pilot relays, solenoid valves, contactor coils, small heater bands, signal lamps — typically as a remote or stand-alone I/O island beside a master LOGO! or third-party controller. ## Approvals — what is and is not on the file FM approval, CSA approval and marine approval are not on the file — hazardous-area deployments, Canadian-only panels where CSA marking is called up, and shipboard installations are out of scope on this order code. ## Sourcing posture ## Close-out for the BOM line For a panel that needs 4 relay outputs at 5 A resistive with a -40 °C cold-start envelope and UL listing, this code is the fit; for a Canadian-marked or marine application it is not — a request for quotation on the order code confirms current availability, the unit-of-origin trace and the UL file carry-over.","metaTitle":"Siemens 6AG1055-1HB00-2BY0 SIPLUS, 4DI/4 relay, -40 to 70 °C","metaDescription":"Siemens 6AG1055-1HB00-2BY0 — SIPLUS digital module, 4 DI / 4 relay outputs (5 A), 24 V AC/DC, UL listed, -40 °C to 70 °C. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["PLCs (Programmable Logic Controllers)"],"specifications":{"Max.":"70 °C; = Tmax; 55 °C @ UL/cUL use","Min.":"-40 °C; = Tmin","Depth":"55 mm","Width":"36 mm; 2 DU","Height":"90 mm","24 V AC":"Yes","24 V DC":"Yes","Mounting":"on 35 mm DIN rail, 2 spacing units wide","FM approval":"No","UL approval":"Yes; File: E120869 // Tmax = 55 °C","CSA approval":"No","Marine approval":"No","lifecycle_stage":"current","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; 1 A per relay @ > 55 °C; 3 A per relay @ > 55 °C & < 15 s","With Resistive Load, Max.":"5 A; 3 A per relay @ > 55 °C; 5 A < 15 s; 10 A all 4 relays in total","For Signal \"1\" Rated Value":"5 A","permissible range, lower limit (DC)":"20.4 V; 22 V @ >55 °C","permissible range, upper limit (DC)":"28.8 V; 27.5 V @ >55 °C","developed in accordance with IEC 61131":"Yes","Installation altitude above sea level, max.":"5 000 m","Limit class B, for use in residential areas":"Yes","Ambient air temperature-barometric pressure-altitude":"Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax -20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$743.01","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2eee7cfcfcdcb38b0735033ecfb3ad0f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=361344&mlfb=6AG1055-1HB00-2BY0","alternativesUrl":"https://aoctrl.com/api/mcp/products/6AG1055-1HB00-2BY0/alternatives.json"},"ai":{"faq":[{"question":"What is 6AG1055-1HB00-2BY0's listed max. on this component line?","answer":"Listed maximum operating temperature is 70 °C, with the UL/cUL use case accepted up to 55 °C."},{"question":"What is 6AG1055-1HB00-2BY0's listed min. on this component line?","answer":"Listed minimum operating temperature is -40 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1055-1HB00-2BY0","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/6AG1055-1HB00-2BY0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}