{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1105-1AE04-2CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1105-1AE04-2CA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1105-1AE04-2CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1105-1AE04-2CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS ASIsafe extended safety monitor, 1 enabling circuit, 1 F-RO safe output relay, 40 ms response, IP20, screw terminals.","salesMarkdown":"## ASIsafe safety monitor with one enabling circuit The Siemens 3RK1105-1AE04-2CA0 is an ASIsafe extended safety monitor with one enabling circuit and one safe output relay (F-RO). The monitor type 3, version 3 hardware supports Category 4 per EN 954-1, PL e per EN ISO 13849-1, and SIL 3 per IEC 61508 — the top end of the safety integrity scale for this class, meaning it can handle the most demanding risk-reduction requirements in a machine safety circuit. Response time is 40 ms maximum. ## Output relay ratings and switching capacity The safe output relay is rated for DC-12 (DC-1) at 24 V at 3 A, and AC-12 at 250 V at 3 A. These are the resistive-load curves — the relay switches the enabling circuit cleanly at those levels. The control-side enabling circuit draws 1 A at 24 V, with lower draws at 115 V (0.1 A) and 230 V (0.05 A). If you're driving an inductive load like a contactor coil downstream, factor in the inrush; the AC-12 rating covers resistive loads, not the AC-15 motor-coil curve. ## AS-Interface integration and wiring AS-Interface protocol is supported natively — the monitor communicates over the AS-i safety bus, which means it reports diagnostics and status back to the AS-i master without separate safety wiring. The inputs and outputs terminate on screw terminals with removable terminal blocks, so you can pre-wire the panel and plug the monitor in later. ## Environmental limits and protection class IP20 protection means it's suitable for a clean, dry control cabinet — no washdown, no dust ingress. The IP20 rating is standard for panel-mounted safety relays; if the cabinet sees condensation or washdown, the monitor needs to be behind a sealed enclosure door.","metaTitle":"Siemens 3RK1105-1AE04-2CA0 ASIsafe Safety Monitor, 1 Enablin","metaDescription":"Siemens 3RK1105-1AE04-2CA0 ASIsafe safety monitor with 1 enabling circuit, 40 ms response, SIL 3 / PL e. Current lifecycle stage. Available to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"24 V":"1A","Type":"1 enabling circuit","115 V":"0.1A","230 V":"0.05A","Depth":"120mm","Width":"45mm","title":"3RK1105-1AE04-2CA0","Height":"108mm","description":"ASIsafe extended Safety monitor 1 F-RO 1 enabling circuit IP20, with screw terminal removable terminals Safe output relay Response time maximum 40 ms Monitor type 3, Version 3 Can be used up to Category 4 (EN954-1) up to PL E (EN ISO 13849-1) up to SIL 3 (IEC 61508)","During Storage":"-30 ... +70°C","lifecycle_stage":"current","During Operation":"-20 ... +60°C","Fastening Method":"screws / standard rail","DC-12 (DC-1) 24 V":"3A","Response time max.":"40ms","protection class IP":"IP20","AC-12, 50/60 Hz 250 V":"3A","Design Of The Product":"safety monitor, with expanded functionality","Number Of Release Circuits":"1","reference code acc. to DIN EN 61346-2":"F","protocol is supported AS-Interface protocol":"Yes","Type Of Electrical Connection Of The Inputs And Outputs":"screw terminal"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ad1560126bfccd4859e7ec7401211ca1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=411213&mlfb=3RK1105-1AE04-2CA0"},"ai":{"faq":[{"question":"What safety level does this monitor support?","answer":"It supports up to Category 4 per EN 954-1, PL e per EN ISO 13849-1, and SIL 3 per IEC 61508 — the highest integrity levels for machine safety circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1105-1AE04-2CA0","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/3RK1105-1AE04-2CA0 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}}