{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1100-1CQ20-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1100-1CQ20-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1100-1CQ20-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1100-1CQ20-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens AS-Interface K45 compact module, 3RK1100-1CQ20-0AA3, 4 digital PNP outputs, 3 A max per channel, IP67, requires external 24 VDC auxiliary supply.","salesMarkdown":"The Siemens 3RK1100-1CQ20-0AA3 is an AS-Interface field I/O module in the K45 compact form factor, delivering four PNP digital outputs rated at 3 A each — enough to drive small solenoid valves, indicator banks, or contactor coils directly from the fieldbus node. It requires an external 24 VDC auxiliary supply (20 to 30 V DC, PELV per VDE 0106) to power the output circuits; the AS-Interface bus cable carries only the module logic and communication. The IP67 rating means this module mounts directly on the machine frame or conveyor line — no control cabinet needed — and withstands washdown environments. Each output is rated at 3 A maximum, but that's the absolute limit at 25 °C. At an ambient of 40 °C the continuous current per channel derates to 200 mA — the real-world figure for a panel in a warm enclosure or near process heat. Built-in short-circuit protection and an integrated watchdog (AS-i slave timeout) mean the module drops outputs safely if the bus communication fails — no need for an external safety relay on the output side for basic fault reaction. The four M12 sockets are pinned per the standard: pin 3 = 0 V, pin 4 = switched output, pin 5 = ground terminal. The ground terminal routes through a 2.8 x 0.8 mm flat-tab sleeve, so you can daisy-chain shield or common references without extra terminal blocks. The 45 x 80 x 30 mm footprint fits tight junction boxes or cable trays. Addressing is done via the front socket; the ID/ID2 code is set to 0/F, which is the default for a standard AS-i slave with four digital outputs. The black AS-Interface flat cable carries both the bus signal and the external 24 VDC for the outputs — one cable, one connection to the module.","metaTitle":"Siemens 3RK1100-1CQ20-0AA3 AS-Interface K45 Module, 4 Output","metaDescription":"Active-production Siemens AS-Interface K45 digital output module. 4 PNP outputs, 3 A max per channel, IP67, requires external 24 VDC auxiliary supply. 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":{"Max":"3 A","Type":"4 outputs","Depth":"30 mm","Width":"45 mm","Height":"80 mm","Note 1":"An external additional supply (AUX POWER) of 20 to 30 V DC is required for the supply of the output circuits. The additional supply must comply with VDE 0106 (PELV), protection class III.","Socket":"PIN 4 = OUT1 (D0)","Socket 2":"PIN 4 = OUT2 (D1)","Socket 3":"PIN 4 = OUT3 (D2)","Socket 4":"PIN 4 = OUT4 (D3)","Watchdog":"built-in","Addressing":"front addressing socket","ID/ID2 code":"0/F","Delivery note":"the modules are delivered without mounting plate","Input circuit":"PNP transistor","During Storage":"-40 ... +85 °C","Ground terminal":"Using PIN5 on the M12 sockets. Outgoing via flat tab sleeve (2.8 x 0.8 mm form A)","display of I/Os":"yellow LED","display of Uaux":"green LED","lifecycle_stage":"current","During Operation":"-25 ... +85 °C","Fastening Method":"standard rail mounting/wall mounting using mounting plate for K45 compact module","Shock Resistance":"15g / 11 ms","I/O configuration":"8","Number I/O sockets":"4","protection class IP":"IP67","Induction Protection":"built-in","Design Of The Product":"digital I/O modules for operation in the field, IP67 - K45","Short-Ciruit Protection":"built-in","Design Of The Slave Type":"standard slave","Number Of Digital Inputs":"0","Type Of Switching Output":"PNP transistor","Number Of Digital Outputs":"4","Outputs socket assignment":"3 = \"-\", 4 = output, 5 = ground terminal","Type Of Connection Technology":"2- and 3-wire technology","at ambient temperature 40 °C":"200 mA","Type Of Voltage Of Output Voltages":"DC","display of AS-Interface/diagnostics":"green/red dual LED","AS interface total current input max":"45 mA","Outputs external power supply 24 V DC":"using black AS-Interface flat cable","Inputs sensor supply using AS-Interface":"short-circuit and overload resistant","Property Of The Output Short-Circuit Proof":"Yes","Design Of The Pin Assignment Of The Outputs":"standard assignement","AS interface Connection Polarity reversal protection":"built-in","ampacity of the semiconductor output at DC-13 at 24 V":"1 A","Type Of Electrical Connection Of The Inputs And Outputs":"M12 screw-type terminals","operating voltage according to AS-Interface spezification":"26.5 ... 31.6 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=437137&mlfb=3RK1100-1CQ20-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1100-1CQ20-0AA3/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output current per channel?","answer":"Each output is rated at 3 A maximum, but derates to 200 mA at 40 °C ambient."},{"question":"Does this module need a separate power supply for the outputs?","answer":"Yes, an external 24 VDC auxiliary supply (20–30 V DC, PELV) is required to power the output circuits. The AS-Interface bus cable itself only carries the module logic."},{"question":"What is the IP rating and where can it be mounted?","answer":"IP67, so it can be mounted directly on the machine frame or in washdown areas without a control cabinet. It fits on standard 35 mm DIN rail or wall-mounted with the optional K45 mounting plate."},{"question":"Does it include short-circuit protection?","answer":"Yes, built-in short-circuit protection and a watchdog timer are standard on this module."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1100-1CQ20-0AA3","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/3RK1100-1CQ20-0AA3 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}}