{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK2100-1EQ20-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK2100-1EQ20-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK2100-1EQ20-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK2100-1EQ20-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens AS-Interface K45 compact module, 3RK2100-1EQ20-0AA3, digital output module with 3 PNP outputs, IP67, 3 A max per output.","salesMarkdown":"The Siemens 3RK2100-1EQ20-0AA3 is an AS-Interface K45 compact digital output module that lives right out on the machine frame, not tucked away in a cabinet. It gives you three PNP transistor outputs, each rated at 3 A max, and it's sealed to IP67 so it can take the washdown and grit you'd find on a conveyor line or a packaging station. One thing that'll trip you up if you're not watching: this module needs an external auxiliary supply (AUX POWER) of 20 to 30 V DC to run the output circuits, and that supply has to meet VDE 0106 (PELV), protection class III. The AS-Interface bus cable alone won't power the outputs — you're running a separate 24 V DC feed through the black flat cable. ## Ratings that matter on the route Each of the three outputs can handle up to 3 A, but that's at 40 °C ambient — at 200 mA per channel if you're running them hot in a panel or near a motor. The module draws 45 mA from the AS-Interface bus for its own logic, and the outputs are PNP — common-sourcing positive. Each M12 socket maps pin 4 to an output (OUT1, OUT2, OUT3), with pin 3 as common negative and pin 5 as the ground terminal. You can use 2- or 3-wire sensors on the input side if you ever need to expand, though this variant has no digital inputs. The footprint is compact at 45 mm wide, 80 mm tall, and 30 mm deep — about the size of a fat relay, so it won't eat up real estate in a junction box. Addressing is done through the front socket, and the module operates as an A/B slave with ID/ID2 code A/0. Status LEDs on the front tell you what's happening: yellow for each output, green for auxiliary power, and a dual red/green LED for AS-Interface bus and diagnostics. There's also a built-in watchdog that'll drop the outputs if the bus communication fails.","metaTitle":"Siemens 3RK2100-1EQ20-0AA3 AS-Interface Module, 3 Outputs, I","metaDescription":"Siemens 3RK2100-1EQ20-0AA3 AS-Interface K45 digital output module: 3 PNP outputs at 3 A, IP67, requires external 24 VDC AUX supply. Current lifecycle stage. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Max":"3 A","Type":"3 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":"not available","Watchdog":"built-in","Addressing":"front addressing socket","ID/ID2 code":"A/0","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":"3","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":"A/B slave","Number Of Digital Inputs":"0","Type Of Switching Output":"PNP transistor","Number Of Digital Outputs":"3","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","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":"$123.19","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=50810&mlfb=3RK2100-1EQ20-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK2100-1EQ20-0AA3/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum current per output on 3RK2100-1EQ20-0AA3?","answer":"Each of the three PNP outputs is rated at 3 A max, though at 40 °C ambient the continuous rating is 200 mA per output."},{"question":"Does 3RK2100-1EQ20-0AA3 need an external power supply?","answer":"Yes, an external auxiliary supply of 20 to 30 V DC (PELV, protection class III) is required to power the output circuits — the AS-Interface bus alone won't drive the outputs."},{"question":"What is the IP rating and where can this module be mounted?","answer":"It's rated IP67, so it's sealed against dust and water jets — suitable for mounting directly on the machine frame in washdown or outdoor environments. It snaps onto standard DIN rail or can be wall-mounted with the optional K45 mounting plate."},{"question":"Where can I buy 3RK2100-1EQ20-0AA3 and get current pricing?","answer":"This module is sourced and quoted to order through independent distribution. Submit an RFQ for current pricing and availability — we'll confirm at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK2100-1EQ20-0AA3","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/3RK2100-1EQ20-0AA3 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}}