{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1105-1AE04-1CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1105-1AE04-1CA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1105-1AE04-1CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1105-1AE04-1CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS ASIsafe safety monitor, 3RK1105-1AE04-1CA0, 1 enabling circuit, 1 F-RO, IP20, screw terminals, 50 ms response time.","salesMarkdown":"## Safety monitor for AS-Interface safety at the machine The Siemens 3RK1105-1AE04-1CA0 is an ASIsafe safety monitor with one enabling circuit and one safe output relay (F-RO), designed to evaluate safety signals from AS-Interface slaves and switch the enabling path for a guarded machine zone. Rated for use up to Category 4 per EN 954-1, PL e per EN ISO 13849-1, and SIL 3 per IEC 61508, this monitor suits safety circuits where a single fault must not lead to loss of the safety function — typical for press guarding, robot cell access, or conveyor interlock zones. The 50 ms maximum response time means the enabling circuit drops within that window after a safety demand, which meets the speed requirements for most Category 4 / PL e applications without forcing a slower machine cycle. Inputs and outputs connect via screw terminals with removable terminal blocks, so the base unit stays on the rail while wiring is swapped or pre-terminated off-panel. AS-Interface protocol support is built in, so the monitor communicates directly on the AS-i bus without an extra gateway module. ## Contact ratings and switching capacity The safe output relay is rated for 3 A at 24 V DC in DC-12 (DC-1) duty, and 3 A at 250 V AC in AC-12 duty — resistive load curves that cover typical solenoid valve and contactor coil switching within the enabling circuit. Control supply draw is 1 A at 24 V, 0.1 A at 115 V, and 0.05 A at 230 V — the 24 V figure is the one to budget for in a typical 24 VDC control panel.","metaTitle":"Siemens 3RK1105-1AE04-1CA0 ASIsafe Safety Monitor, 1 F-RO, I","metaDescription":"Siemens 3RK1105-1AE04-1CA0 ASIsafe safety monitor with 1 enabling circuit, 1 F-RO, IP20, screw terminals, 50 ms response. Current production. Source to order via 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":"3RK1105-1AE04-1CA0","Height":"108mm","description":"ASIsafe Basis Safety monitor 1 F-RO 1 enabling circuit IP20, with screw terminal removable terminals Safe output relay Response time max. 50 ms Monitor type 1, 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.":"50ms","protection class IP":"IP20","AC-12, 50/60 Hz 250 V":"3A","Design Of The Product":"safety monitor, special version","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/b011faae1fa0b172836a3de4342adde3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=222288&mlfb=3RK1105-1AE04-1CA0"},"ai":{"faq":[{"question":"What safety integrity levels does this monitor support?","answer":"It is rated for use up to Category 4 (EN 954-1), PL e (EN ISO 13849-1), and SIL 3 (IEC 61508), covering the highest performance levels for safety-related control systems."},{"question":"What is the response time of the enabling circuit?","answer":"The maximum response time is 50 ms, meaning the safe output relay opens within 50 ms of a safety demand."},{"question":"Does this monitor support AS-Interface communication?","answer":"Yes, AS-Interface protocol support is built in, allowing direct connection to the AS-i bus without an additional gateway."},{"question":"What are the terminal connection details?","answer":"Inputs and outputs connect via screw terminals on removable terminal blocks, which simplifies wiring and replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1105-1AE04-1CA0","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/3RK1105-1AE04-1CA0 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}}