{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK2400-1BQ20-1AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK2400-1BQ20-1AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK2400-1BQ20-1AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK2400-1BQ20-1AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens K45 digital I/O module, 2 PNP inputs / 2 PNP outputs, 3 A max, IP67, AS-Interface A/B slave.","salesMarkdown":"The Siemens 3RK2400-1BQ20-1AA3 is a K45 compact digital I/O module for AS-Interface field networks, rated IP67 for direct machine-mount deployment. It provides 2 PNP inputs and 2 PNP outputs, with a maximum output current of 3 A per module. The module requires an external auxiliary power supply of 20 to 30 V DC (PELV per VDE 0106, protection class III) to drive the output circuits — the AS-Interface bus cable alone cannot supply the output side. Rated IP67, the module withstands washdown and dust ingress — suitable for food-and-bev lines, conveyor sections, or packaging machines where the I/O point lives on the machine frame, not in a cabinet. The 3 A max per module governs total output current; each of the two PNP outputs shares this budget. If you need to drive two 2 A solenoids simultaneously, this module is undersized — watch the per-channel allocation. Inputs are PNP (sourcing), minimum signal-1 current 6 mA, max signal-0 leakage 1.5 mA. That means a standard 3-wire PNP proximity sensor drives it cleanly; NPN sensors require an interface converter. Built-in short-circuit and induction protection on the outputs means you don't need external free-wheel diodes for small inductive loads — the module handles it. Because it is an active, non-obsolete part, the sourcing path is straightforward: submit an RFQ with your quantity and target delivery window. No last-time-buy or surplus-channel scramble needed. Four M12 sockets handle the I/O wiring. Pin 1 is sensor supply L+, pin 3 is sensor supply L-, pin 5 is ground terminal (outgoing via flat tab sleeve 2.8 x 0.8 mm form A). Data inputs on pins 2 and 4. Addressing is set via the front addressing socket; the module operates as an A/B slave. Yellow LEDs indicate I/O state, green LED shows auxiliary power present.","metaTitle":"Siemens 3RK2400-1BQ20-1AA3 K45 Digital I/O Module, 2 In/2 Ou","metaDescription":"Siemens 3RK2400-1BQ20-1AA3 K45 digital I/O module, 2 PNP inputs, 2 PNP outputs, 3 A max, IP67. Requires external 20-30 VDC AUX supply. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Max":"3 A","Type":"2 outputs / 2 inputs","Depth":"30 mm","PIN 1":"sensor supply L+","PIN 2":"data input","PIN 3":"sensor supply L-","PIN 4":"data input","PIN 5":"ground terminal","Width":"45 mm","title":"3RK2400-1BQ20-1AA3","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 4/2 = IN3 (D2)","Socket 2":"PIN 4/2 = IN4 (D3)","Socket 3":"PIN 4 = OUT1 (D0)","Socket 4":"PIN 4 = OUT2 (D1)","Watchdog":"without","Addressing":"front addressing socket","ID/ID2 code":"A/0","description":"AS-i compact module K45 digital A/B slave, 2 DI/2 DQ, IP67 2 x input, max. 200 mA 2 x output, 2 A 24 V DC max. 3 A for all outputs Special version without watchdog 4 x M12 socket Mounting plate 3RK1901-2EA00 or 3RK1901-2DA00 is to be ordered separately","Delivery note":"the modules are delivered without mounting plate","Input Voltage":"16.5 ... 30 V","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":"B","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","For Signal <1> Minimum":"6 mA","Short-Ciruit Protection":"built-in","With Signal <0> Maximum":"1.5 mA","Design Of The Slave Type":"A/B slave","Number Of Digital Inputs":"2","Type Of Switching Output":"PNP transistor","Number Of Digital Outputs":"2","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","Inputs switching level High min":"10 V","Type Of Voltage Of Output Voltages":"DC","display of AS-Interface/diagnostics":"green/red dual LED","AS interface total current input max":"270 mA","Outputs external power supply 24 V DC":"using black AS-Interface flat cable","Type Of Voltage Of The Input Voltages":"DC","Inputs sensor supply using AS-Interface":"short-circuit and overload resistant","Type Of Voltage Supply For Power Supply":"using AS-Interface","Design Of The Pin Assignment Of The Inputs":"standard assignement","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":"2 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","Property Of The Sensor Supply Short-Circuit And Overload Resistant":"Yes"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$125.73","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9053f1875c9a3e3110de8b8b520d2ab3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=194716&mlfb=3RK2400-1BQ20-1AA3"},"ai":{"faq":[{"question":"What are the key ratings for this module?","answer":"It provides 2 PNP inputs and 2 PNP outputs, with a maximum output current of 3 A per module. It requires an external 20-30 V DC PELV auxiliary supply for the output circuits. The module is rated IP67 and operates from -25 to +85 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK2400-1BQ20-1AA3","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/3RK2400-1BQ20-1AA3 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}}