{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK2400-1BQ20-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK2400-1BQ20-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK2400-1BQ20-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK2400-1BQ20-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens K45 compact digital I/O module, 3RK2400-1BQ20-0AA3, 2 PNP inputs / 2 PNP outputs, 3 A max, IP67, current lifecycle.","salesMarkdown":"The Siemens 3RK2400-1BQ20-0AA3 is a K45 compact digital I/O module rated for field deployment at IP67, carrying 2 PNP inputs and 2 PNP outputs with a maximum output current of 3 A per channel. The 3 A per-output rating is the continuous load limit for the PNP transistor outputs. The IP67 rating means the module body and all four M12 sockets are sealed against dust ingress and temporary immersion — suitable for washdown zones, outdoor conveyor sections, or food-and-beverage lines where hose-down cleaning is routine. Inputs are PNP (sourcing) type, so the module expects a positive signal from 3-wire sensors. The input circuit draws a minimum of 6 mA for a logic 1 and a maximum of 1.5 mA for a logic 0 — standard for most industrial 24 VDC PNP proximity switches and photoelectric sensors. ## Power and wiring constraints An external auxiliary supply of 20 to 30 VDC is required for the output circuits, and it must comply with VDE 0106 (PELV), protection class III. Dimensions are 45 mm wide × 80 mm high × 30 mm deep — roughly the footprint of a slim terminal block, so it fits in tight junction boxes or along DIN rails in small enclosures.","metaTitle":"Siemens 3RK2400-1BQ20-0AA3 K45 digital I/O module, 2 inputs","metaDescription":"Siemens 3RK2400-1BQ20-0AA3 K45 IP67 digital I/O module. 2 PNP inputs, 2 PNP outputs, 3 A max. Current lifecycle stage. Requires 20-30 VDC auxiliary supply (PELV). Sourced 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":"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":"3RK2400-1BQ20-0AA3","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":"built-in","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, maximum 200 mA 2 x output, 2 A 24 V DC maximal 3 A for all outputs 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/8bf31eaf712e2c613fa72df94db3f3d7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=330200&mlfb=3RK2400-1BQ20-0AA3"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK2400-1BQ20-0AA3","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/3RK2400-1BQ20-0AA3 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}}