{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK2400-2CE00-2AA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK2400-2CE00-2AA2","canonicalUrl":"https://aoctrl.com/siemens/3RK2400-2CE00-2AA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RK2400-2CE00-2AA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RK2400-2CE00-2AA2, AS-i Slimline SC22.5 compact I/O module, 4DI/4DQ A/B slave, PNP inputs Type 2, PNP transistor outputs, 22.5 mm wide, IP20, screw and snap-on mounting.","salesMarkdown":"## AS-i Slimline I/O — 4DI/4DQ in 22.5 mm The Siemens 3RK2400-2CE00-2AA2 is a Slimline SC22.5 AS-Interface compact I/O module for control-cabinet use, packing four digital inputs and four digital outputs into a 22.5 mm wide housing that snaps onto DIN rail. Inputs are PNP Type 2 per EN 61131-2; outputs are PNP transistor, rated 270 mA at 30 V maximum or 270 mA at 24 V with AS-i Power24V. Supply current splits depending on the feed: 200 mA when powered via the AS-Interface bus, or 500 mA when an external auxiliary supply (AUX POWER, 20–30 V DC PELV per IEC 60990) is connected — that extra headroom matters if you are driving the outputs and a small sensor load from the same module. ## AS-Interface Slave Profile and Addressing The slave is an A/B type compliant with AS-Interface Specification 3.0, carrying profile S-7.A.7 and ID1 code 7 (fixed, not user-changeable). Address setting is done via the front addressing socket — no DIP switches to flip inside the panel. Input and output status is indicated by yellow/red LEDs per channel. ## Power Supply and Wiring Output circuits require an external auxiliary feed (AUX POWER) of 20 to 30 V DC, rated for up to 4 A; the module can also draw supply from the AS-Interface bus at 8.5 V minimum, or from the auxiliary feed — switchable via the supply voltage selector. Connection technology supports 2- and 3-wire sensors. Solid wire sizes: 1x (0.5–2.5 mm²) or 2x (0.5–1.5 mm²); finely stranded with ferrule: 1x (0.25–2.5 mm²) or 2x (0.25–1.0 mm²). AWG solid equivalents are 1x (24–14) or 2x (24–16); stranded AWG is not permitted. Rated IP20 — suitable for clean, dry control cabinets only; not for washdown or outdoor placement. Shock resistance is 15g / 11 ms for the module alone, or 10g / 11 ms with the device connector attached. Dimensions: 22.5 mm wide × 100 mm high × 120 mm deep — a standard single-slice footprint that fits alongside other 22.5 mm components on the DIN rail. Fastening is by screw or snap-on mounting onto the DIN rail. The module carries no safety-related digital I/O (0 safety inputs) and no analog I/O — it is a pure discrete slice for standard AS-i networks.","metaTitle":"Siemens 3RK2400-2CE00-2AA2 AS-i Slimline Module, 4DI/4DQ","metaDescription":"Siemens 3RK2400-2CE00-2AA2 AS-i Slimline I/O module, 4 digital inputs PNP Type 2, 4 digital outputs PNP transistor, 22.5 mm wide, IP20, active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Note":"200 mA with supply via AS interface / 500 mA with supply via Uaux","Depth":"120 mm","Solid":"1x (0.5 ... 2.5 mm²), 2x ( 0.5 ... 1.5 mm²)","Width":"22.5 mm","title":"3RK2400-2CE00-2AA2","Height":"100 mm","ID1 code":"7; Setting cannot be changed; Setting cannot be changed","description":"AS-i SlimLine Compact module SC22.5 digital, A/B slave 4 DI/4 DQ, IP20 4 x inputs for 3-wire sensor Sensor supply can be switched over 4 x output, 2 A, 24 V DC maximal 4 A for all outputs Screw terminals Width 22.5 mm","During Storage":"-40 ... +85 °C","at 30 V maximum":"270 mA","lifecycle_stage":"current","During Operation":"-25 ... +70 °C","Fastening Method":"screw and snap-on mounting","Product Function":"Built-in induction protection","Shock Resistance":"15g / 11 ms (modules) or 10g / 11 ms (modules with device connector)","for AS-Interface":"2 A","Other Information":"An auxiliary external feed (AUX POWER) of between 20 and 30 V DC is necessary for supplying the output circuits. The auxiliary feed must comply with IEC 60990 (PELV), protection class III.","from AS-interface":"8.5 V","Product Designation":"Slimline Compact I/O module for use in the control cabinet","at AWG cables solid":"1x (24 ... 14), 2x (24 ... 16)","protection class IP":"IP20","Design Of The Product":"AS-i SC22.5, 4DI/4DQ A/B","at AWG cables stranded":"Not permitted","Number Of Analog Inputs":"0","according to EN 61346-2":"K","Design Of The Slave Type":"A/B slave (Spec. 3.0)","Number Of Analog Outputs":"0","Number Of Digital Inputs":"4","Type Of Switching Output":"PNP transistor","Number Of Digital Outputs":"4","AS-Interface slave profile":"S-7.A.7","Type Of Input Characteristic":"PNP Type 2","Type Of Connection Technology":"2- and 3-wire technology","For External Auxiliary Voltage":"4 A","From External Auxiliary Voltage":"1 V","at 24 V with AS-i Power24V maximum":"270 mA","Type Of Voltage Supply At The Outputs":"via AUX POWER","type of address setting of AS-i slaves":"via front addressing socket","As Status Display Of The Inputs/Outputs":"LED yellow/red","Number Of Digital Inputs Safety-Related":"0","Type Of Voltage Supply For Power Supply":"AS-Interface / U_AUX switchable","Finely Stranded With Core End Processing":"1x (0.25 ... 2.5 mm²), 2x (0.25 ... 1.0 mm²)","Property Of The Output Short-Circuit Proof":"Yes","Finely Stranded Without Core End Processing":"Not permitted","product function suitable for AS-i Power24V":"Yes","protocol is supported AS-Interface protocol":"Yes","Total Current Of Digital Outputs Per Module Maximum":"4 A","ampacity of the semiconductor output at DC-13 at 24 V":"2 A","Type Of Electrical Connection Of The Inputs And Outputs":"Screw terminals","operating voltage according to AS-Interface specification":"18 ... 31.6 V","Product Function For Power Supply Reverse Polarity Protection":"Yes","Property Of The Sensor Supply Short-Circuit And Overload Resistant":"Yes","ampacity of the sensor supply for all inputs at ambient temperature 40 °C":"500 mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3cac1cdaa94dbd6f62b6720ab6c68b4e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=552957&mlfb=3RK2400-2CE00-2AA2"},"ai":{"faq":[{"question":"What is the supply current split between AS-i and AUX POWER?","answer":"The module draws 200 mA when supplied via the AS-Interface bus, or 500 mA when an external auxiliary supply (AUX POWER) is connected."},{"question":"What is the depth of 3RK2400-2CE00-2AA2?","answer":"The depth is 120 mm."},{"question":"What compliance documentation does Siemens provide for this module?","answer":"The module is designed per IEC 60990 (PELV) for the auxiliary feed and carries the manufacturer's standard declarations for the AS-Interface specification; specific RoHS, REACH, and UL documentation should be confirmed at order time against the lot shipped."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK2400-2CE00-2AA2","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/3RK2400-2CE00-2AA2 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}}