{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1200-0CG03-0AA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1200-0CG03-0AA2","canonicalUrl":"https://aoctrl.com/siemens/3RK1200-0CG03-0AA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1200-0CG03-0AA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS AS-Interface counter module, 3RK1200-0CG03-0AA2, 1 DI counter input, PNP, IP20, spring-loaded terminals, 22.5 mm width.","salesMarkdown":"The Siemens 3RK1200-0CG03-0AA2 is an AS-Interface counter module in the SIRIUS form factor — a single digital input configured as a counter, PNP-sensed, drawing its operating voltage from the AS-Interface bus at 26.5 to 31.6 V and pulling up to 170 mA total from the bus. It provides one counter input with a 90 mA sensor supply at 40 °C, short-circuit and overload protected, so it can power a proximity sensor or encoder directly off the module without an external supply. The switching thresholds are defined: a High signal starts at 10 V minimum, a Low signal is 5 V maximum, and the input sinks 10 mA minimum at High, 2 mA maximum at Low. Housed in a 22.5 mm wide enclosure (103 mm tall, 86 mm deep) that clips onto standard 35 mm DIN rail per EN 50022 or can be wall-mounted. Connections are via spring-loaded terminals accepting 2 x (0.25 to 1.5) mm² solid or 2 x (0.25 to 1) mm² with end sleeve; AWG 24 to 16 stranded. Pin assignment: terminal 7 is + (sensor supply), terminal 9 is – (common), terminal 8 is the counter input IN2. ## Status and diagnostics A bicolor LED on the front reports AS-Interface bus health: green on with red off means normal operation; green off with red on means no data traffic; green flashing with red on means zero address; green off with red flashing means sensor overload.","metaTitle":"Siemens 3RK1200-0CG03-0AA2 AS-Interface Counter Module, 1 DI","metaDescription":"Siemens 3RK1200-0CG03-0AA2 AS-Interface counter module, 1 digital input (counter), 90 mA sensor supply at 40 °C, IP20, spring-loaded terminals, 22.5 mm wide. Active lifecycle. Sour","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"86mm","Solid":"2 x (0.25 - 1.5) mm²","Width":"22.5mm","title":"3RK1200-0CG03-0AA2","Height":"103mm","Counter":"Yes","ID code":"F","Slave type":"standard slave","description":"AS-Interface counter module S22.5, 1 DI, counter, IP20 1x 1 counter input, 90 mA, PNP Spring-type terminal Overall width 22.5 mm","During Storage":"-40 ... +85°C","Assignment pins":"terminal 7 = + , terminal 9 = - , terminal 8 = IN2","With End Sleeve":"2 x (0,25 - 1) mm²","lifecycle_stage":"current","During Operation":"-25 ... +70°C","Fastening Method":"standard rail mounting/wall mounting","I/O configuration":"0","Without End Sleeve":"2 x (0.25 - 1.5) mm²","protection class IP":"IP20","Inputs voltage range":"20 ... 30V","AWG solid or stranded":"AWG 2 x (24 - 16) mm²","Design Of The Product":"counter modules - modules with special functions","Overvoltage Detection":"No","For Signal <1> Minimum":"10mA","Ground Fault Detection":"No","With Signal <0> Maximum":"2mA","switching level Low max":"5V","switching level High min":"10V","Status display AS-Interface":"Green LED on + Red LED off = Status OK Green LED off + Red LED on = No data traffic Green LED flashes + Red LED on = Zero address Green LED off + Red LED flashes = Overload (sensor)","AS interface total current input max":"170mA","reference code acc. to DIN EN 61346-2":"K","Inputs sensor supply using AS-Interface":"short-circuit and overload resistant","protocol is supported AS-Interface protocol":"No","Type Of Electrical Connection Of The Inputs And Outputs":"spring-loaded terminals","operating voltage according to AS-Interface spezification":"26.5 ... 31.6V","ampacity of the sensor supply for all inputs at ambient temperature 40 °C":"90mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/0c8005ff00551310ec2a5a04290d9157.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=257419&mlfb=3RK1200-0CG03-0AA2"},"ai":{"faq":[{"question":"What are the key ratings for this counter module?","answer":"It supplies 90 mA sensor current at 40 °C, draws up to 170 mA from the AS-Interface bus, operates on 26.5 to 31.6 V bus voltage, and accepts a 20 to 30 V input voltage range. Switching thresholds: High ≥10 V, Low ≤5 V."},{"question":"What is the physical size and mounting?","answer":"22.5 mm wide, 103 mm tall, 86 mm deep. Mounts on 35 mm DIN rail or wall-mounts. Spring-loaded terminals accept 0.25 to 1.5 mm² solid wire."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1200-0CG03-0AA2","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/3RK1200-0CG03-0AA2 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}}