{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1205-0CQ00-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1205-0CQ00-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1205-0CQ00-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1205-0CQ00-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens ASIsafe K45F compact module, 4 F-DI for mechanical sensors, IP67, M12 sockets, 26.5-31.5V AS-Interface supply.","salesMarkdown":"The Siemens 3RK1205-0CQ00-0AA3 is an ASIsafe compact module from the K45F family — four safety-rated digital inputs for mechanical switching contacts, packaged in a 45 mm wide IP67 housing with M12 connectors. It sits directly on a machine frame or conveyor section, not inside a control cabinet; the IP67 rating means the module and its M12 sockets survive washdown environments on food, beverage, or automotive lines. Power and safety data travel over the AS-Interface flat cable, so no separate control wiring is needed back to the panel. The four safety inputs (4 F-DI) accept mechanical switching contacts — standard limit switches or safety gate switches with dry contacts. Each input draws a minimum of 5 mA at signal <1> to register a closed contact, which is typical for AS-Interface safety slaves and ensures reliable detection even with long cable runs. The module is addressed via the front addressing socket, and the ID/ID2 code is set to B/F. The yellow LEDs on each input give immediate visual feedback during commissioning or fault-finding. Operating voltage follows the AS-Interface specification at 26.5 to 31.5 V DC, and the module draws up to 70 mA from the AS-Interface bus — that total includes the electronics and the input sensing current, so it fits within a standard AS-Interface power supply budget even on a heavily populated segment. The 45 mm width and 34 mm depth keep the footprint compact for tight spots on a machine frame. All four M12 input sockets are on the front face, and the AS-Interface connection is via the standard piercing technique through the flat cable. No backplane or separate bus coupler is needed — the module is a fully addressable AS-Interface slave.","metaTitle":"Siemens 3RK1205-0CQ00-0AA3 ASIsafe K45F, 4 F-DI, IP67","metaDescription":"Active Siemens ASIsafe compact module K45F with 4 safety digital inputs for mechanical sensors, IP67, M12 connections. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"34mm","Width":"45mm","title":"3RK1205-0CQ00-0AA3","Height":"80mm","Sensors":"mechanical switching contact","Addressing":"front addressing socket","ID/ID2 code":"B/F","description":"ASIsafe compact module K45F digital safety, 4 F-DI, IP67 4 x input for mechanical sensors 4 x M12 socket Mounting plate 3RK1901-2EA00 or 3RK1901-2DA00 must be ordered separately","During Storage":"-40 ... +85°C","display of I/Os":"yellow LED","lifecycle_stage":"current","During Operation":"-25 ... +70°C","Fastening Method":"standard rail mounting/wall mounting using mounting plate for K45 compact module","I/O configuration":"0","Number I/O sockets":"4","protection class IP":"IP67","switching level Low":"contact open","switching level High":"contact closed","Design Of The Product":"Safe compact module K45F, 4F-DI","Type Of Voltage Of Output Voltages":"DC","display of AS-Interface/diagnostics":"green/red LED","AS interface total current input max":"70mA","reference code according to EN 61346-2":"A","Number Of Digital Inputs Safety-Related":"4","Design Of The Pin Assignment Of The Inputs":"special assignement","protocol is supported AS-Interface protocol":"Yes","Input Current At Digital Input For Signal <1> Minimum":"5mA","Type Of Electrical Connection Of The Inputs And Outputs":"M12","operating voltage according to AS-Interface spezification":"26.5 ... 31.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$165.10","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b3119cfdd4156dbcedff57b0ac026e0d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=126175&mlfb=3RK1205-0CQ00-0AA3"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1205-0CQ00-0AA3","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/3RK1205-0CQ00-0AA3 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}}