{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1105-1BE04-4CA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1105-1BE04-4CA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1105-1BE04-4CA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1105-1BE04-4CA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS ASIsafe extended safety monitor, 3RK1105-1BE04-4CA0, 2 enabling circuits, 24 V DC supply, 40 ms response time, IP20, screw terminals.","salesMarkdown":"## What this safety monitor does on the line The Siemens 3RK1105-1BE04-4CA0 is an ASIsafe extended safety monitor with two enabling circuits, designed to supervise safety functions on an AS-Interface network. The 40 ms maximum response time means it reacts fast enough for most guarding applications — light curtains, e-stops, interlocked gates — without forcing a slower safety PLC scan. Rated for use up to Category 4 (EN 954-1), Performance Level e (EN ISO 13849-1), and SIL 3 (IEC 61508), it covers the highest integrity levels for risk reduction in industrial machinery. That makes it suitable for press brakes, packaging lines, or robotic cells where a fault could cause serious injury. The two enabling circuits (safe relay outputs) are rated for 3 A at 250 V AC (AC-12 resistive load) and 3 A at 24 V DC (DC-12 / DC-1). That's enough to switch contactors, solenoid valves, or indicator lamps directly — no interposing relay needed for moderate loads. The 24 V DC supply input draws 1 A; the 115 V and 230 V control inputs draw 0.1 A and 0.05 A respectively, so the power budget on the AS-i bus or auxiliary supply is modest. At 108 mm high and 120 mm deep, it fits standard control cabinets without crowding adjacent modules. IP20 protection means it belongs inside a sealed enclosure — not on the machine frame where washdown or dust could reach it. Connections are via removable screw terminals, so you can pre-wire the cabinet and plug the monitor in during commissioning. The inputs and outputs share the same terminal type, which simplifies the BOM for panel builders.","metaTitle":"Siemens 3RK1105-1BE04-4CA0 ASIsafe Safety Monitor, 2 Enablin","metaDescription":"Siemens 3RK1105-1BE04-4CA0 ASIsafe extended safety monitor with 2 enabling circuits, 40 ms response, up to SIL 3/PL e. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"24 V":"1A","Type":"2 enabling circuits","115 V":"0.1A","230 V":"0.05A","Depth":"120mm","Width":"45mm","title":"3RK1105-1BE04-4CA0","Height":"108mm","description":"ASIsafe extended Safety monitor 2 F-RO with integrated safe slave 2 enabling circuits included Control of a safe AS-i output Safe coupling IP20, with screw terminal removable terminals Safe output relay Response time max. 40 ms Monitor type 6, 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 / DIN 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":"2","reference code according to 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/3c7c4b12b4d5fa26b41a65570b66dd4d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=532038&mlfb=3RK1105-1BE04-4CA0"},"ai":{"faq":[{"question":"What safety integrity levels does this monitor support?","answer":"It is rated for Category 4 per EN 954-1, Performance Level e per EN ISO 13849-1, and SIL 3 per IEC 61508 — the highest standard industrial safety levels."},{"question":"What is the response time of the 3RK1105-1BE04-4CA0?","answer":"The maximum response time is 40 ms, which covers most guarding applications like light curtains and interlocked gates without requiring a dedicated safety PLC."},{"question":"Where can I buy the 3RK1105-1BE04-4CA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1105-1BE04-4CA0","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/3RK1105-1BE04-4CA0 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}}