{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK2400-1BQ30-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK2400-1BQ30-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK2400-1BQ30-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK2400-1BQ30-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens K20 field I/O module, AS-Interface A/B slave, 2 digital inputs + 2 digital outputs, PNP, 1 A max, IP67, 20 mm wide.","salesMarkdown":"The Siemens 3RK2400-1BQ30-0AA3 is a K20 field I/O module for AS-Interface networks, configured as an A/B slave with 2 digital inputs and 2 digital outputs. It's built for distributed I/O in the field, meaning it sits on the machine frame or conveyor line rather than in a central cabinet — the IP67 rating confirms it withstands washdown and airborne particulates in production environments. Each output channel is rated 1 A maximum, which governs the solenoid valves, signal lamps, or small contactor coils this module can drive directly. The input circuit uses PNP transistor technology, so it expects sourcing sensors (e.g., 3-wire proximity switches) that pull the input high when active. The module requires an external auxiliary supply of 20 to 30 V DC for the output circuits, separate from the AS-Interface bus power. That supply must comply with VDE 0106 (PELV) protection class III — a standard requirement for touch-safe low-voltage circuits in industrial control panels. Built-in short-circuit protection and induction suppression mean the module handles typical field-wiring faults without external clamp diodes or fuses per channel. The watchdog timer resets outputs if the AS-Interface master communication drops, which is standard for safety-related distributed I/O architectures. The housing is 20 mm wide, 108 mm tall, and 45 mm deep — no mounting plate required, so it clips directly onto a DIN rail or mounts via the integrated screw holes. Two M12 I/O sockets handle the field wiring; addressing is set through the M12 female connector rather than DIP switches, which simplifies configuration but means the addressing cable must be on hand during commissioning. Shock resistance of 15 g for 11 ms means it survives typical machine vibration and handling during transport. The yellow LEDs indicate I/O state per channel; the green LED confirms the auxiliary supply is present.","metaTitle":"Siemens 3RK2400-1BQ30-0AA3 K20 Field I/O Module, 2 Inputs /","metaDescription":"Siemens 3RK2400-1BQ30-0AA3 K20 digital I/O module with 2 inputs and 2 outputs, rated 1 A max. IP67, PNP switching, requires 20-30 V DC auxiliary supply. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Max":"1 A","Type":"2 outputs / 2 inputs","Depth":"45 mm","PIN 1":"sensor supply L+","PIN 2":"data input 2","PIN 3":"sensor supply L-","PIN 4":"data input 1","Width":"20 mm","Height":"108 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 = IN3 (D2), PIN 2 = IN4 (D3)","Socket 2":"PIN 4 = OUT1 (D0), PIN 2 = OUT2 (D1)","Socket 3":"not available","Socket 4":"not available","Watchdog":"built-in","Addressing":"using M12 female connector","ID/ID2 code":"A/2","Input Voltage":"16.5 ... 30 V","Input circuit":"PNP transistor","During Storage":"-40 ... +85 °C","Ground terminal":"not available","display of I/Os":"yellow LED","display of Uaux":"green LED","lifecycle_stage":"current","During Operation":"-25 ... +70 °C","Fastening Method":"no mounting plate required","Shock Resistance":"15g / 11 ms","I/O configuration":"B","Number I/O sockets":"2","protection class IP":"IP67","Induction Protection":"built-in","Design Of The Product":"digital I/O modules for operation in the field, IP67 - K20","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":"2 = output 2, 3 = \"-\", 4 = output 1","Type Of Connection Technology":"2- and 3-wire technology","at ambient temperature 40 °C":"150 mA","at ambient temperature 55 °C":"70 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":"shared round cable connection with AS-Interface connection through M12 female connector","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":"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","Property Of The Sensor Supply Short-Circuit And Overload Resistant":"Yes"}},"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=20692&mlfb=3RK2400-1BQ30-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK2400-1BQ30-0AA3/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this module?","answer":"It provides 2 digital inputs and 2 digital outputs, each rated 1 A max. Inputs are PNP (sourcing), outputs are PNP switching. Requires 20-30 V DC auxiliary supply for outputs. IP67 rated."},{"question":"Will this module replace a 3RT1023-1AL20 contactor in a panel?","answer":"No. The 3RT1023-1AL20 is a contactor, not an I/O module. This AS-Interface slave cannot switch motor loads or replace a contactor's power circuit. They serve different functions in the control system."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK2400-1BQ30-0AA3","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/3RK2400-1BQ30-0AA3 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}}