{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK2400-1BT30-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK2400-1BT30-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK2400-1BT30-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK2400-1BT30-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens K20 digital I/O module, 3RK2400-1BT30-0AA3, 2 inputs / 2 outputs, PNP, 1 A, IP67, current production.","salesMarkdown":"The Siemens 3RK2400-1BT30-0AA3 is a K20-series digital I/O module built for field deployment — IP67 rated, no enclosure needed. It gives you 2 PNP inputs and 2 PNP outputs in a 20 mm wide body that mounts direct to machine frame or conveyor rail without a backplate. Each output is rated for a continuous 1 A at up to 30 V DC, but the module requires an external 20–30 V DC PELV supply (per VDE 0106, protection class III) to power the output circuits — the sensor supply from the bus coupler alone won't cut it. ## IO map and wiring reality The four M12 sockets are pinned consistently: Pin 1 is sensor supply L+, Pin 3 is sensor supply L-, and Pin 4 carries the signal — but which signal depends on the socket. Sockets 1 and 2 map to inputs IN3 and IN4 (D2, D3); sockets 3 and 4 map to outputs OUT1 and OUT2 (D0, D1). Outputs use 3-wire technology with Pin 3 as ground and Pin 4 as the switched PNP output. The module is an A/B slave with ID/ID2 code A/0, addressed via the M12 connector. Built-in watchdog, short-circuit protection, and induction suppression are standard — no external diode needed on the output side. ## Environmental and signal specs Shock rated at 15 g for 11 ms. Input signal threshold: <0> at ≤1.5 mA, <1> at ≥6 mA. Outputs display yellow LED per channel; green LED confirms auxiliary supply present.","metaTitle":"Siemens 3RK2400-1BT30-0AA3 K20 IO Module, 2DI/2DO, IP67","metaDescription":"Siemens 3RK2400-1BT30-0AA3 digital IO module, 2 inputs / 2 outputs, 1 A max, IP67, current production. 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":"1 A","Type":"2 outputs / 2 inputs","Depth":"45 mm","PIN 1":"sensor supply L+","PIN 3":"sensor supply L-","PIN 4":"data input","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)","Socket 2":"PIN 4 = IN4 (D3)","Socket 3":"PIN 4 = OUT1 (D0)","Socket 4":"PIN 4 = OUT2 (D1)","Watchdog":"built-in","Addressing":"using M12 female connector","ID/ID2 code":"A/0","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":"4","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":"3 = \"-\", 4 = output","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":"M8 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":"$142.24","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=132962&mlfb=3RK2400-1BT30-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK2400-1BT30-0AA3/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum current per output?","answer":"Each output is rated for a maximum of 1 A. The total module current at 40 °C ambient is 150 mA for the electronics plus the output load current, so plan your load accordingly."},{"question":"Does this module need an external power supply?","answer":"Yes. An external 20–30 V DC PELV supply (protection class III per VDE 0106) is required to power the output circuits. The sensor supply from the bus coupler only powers the input side and module electronics."},{"question":"What is the IP rating and mounting method?","answer":"IP67 rated for direct field mounting — no enclosure required. It fastens directly to the machine frame or conveyor structure without a mounting plate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK2400-1BT30-0AA3","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/3RK2400-1BT30-0AA3 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}}