{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1908-0AP00-0GP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1908-0AP00-0GP0","canonicalUrl":"https://aoctrl.com/siemens/3RK1908-0AP00-0GP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1908-0AP00-0GP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC 3RK1908-0AP00-0GP0 BaseUnit, remote I/O accessory, DIN rail mount, 75 mm depth, 30 mm width, 215 mm height, push-in terminals, 7 A max.","salesMarkdown":"## SIMATIC BaseUnit for ET 200SP remote I/O The 3RK1908-0AP00-0GP0 is a SIMATIC BaseUnit from Siemens, designed as the mechanical and electrical backbone for ET 200SP remote I/O modules. This BaseUnit variant includes an AC infeed and an F-DI infeed, meaning it carries both the main supply voltage and the fail-safe digital input power bus to the module above it. ## DIN rail footprint and wiring The mounting position is flexible — vertical or horizontal — so it fits both wall-mount enclosures and back-panel layouts. Wiring uses push-in spring-loaded terminals on both the main current circuit and the auxiliary/control circuit. A standard 0.6 mm x 3.5 mm slot screwdriver is the tool for release. ## Supply voltage and current limits The DC supply operates between 20.4 V and 28.8 V, with a rated value of 24 V. The maximum ampacity through the BaseUnit is 7 A — this is the total current the bus can carry to the modules and field devices stacked on it. Pollution degree 2 applies, which is typical for clean industrial control panels. ## Environmental and mechanical ratings Storage and transport tolerances are wider, from -40 to +70 °C. Relative humidity during operation can run from 10 to 95 %, non-condensing. Shock resistance is 6 g for 11 ms, and vibration resistance is 15 mm at 6 Hz, then 2 g up to 500 Hz. This covers most industrial machinery and conveyor applications without needing additional damping. Substance prohibitance date is April 15, 2016, which aligns with the RoHS exemption sunset for certain materials — the BaseUnit complies with the current RoHS and REACH requirements for industrial equipment.","metaTitle":"Siemens 3RK1908-0AP00-0GP0 SIMATIC BaseUnit, 75 mm depth","metaDescription":"Siemens SIMATIC 3RK1908-0AP00-0GP0 BaseUnit for remote I/O, 75 mm depth, 30 mm width, DIN rail mount, push-in terminals, 7 A max, active production, quoted to","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"75 mm","Solid":"1x 0,5 ... 2,5 mm²","Width":"30 mm","title":"3RK1908-0AP00-0GP0","Height":"215 mm","Upwards":"50 mm","Downwards":"50 mm","description":"Base unit (BU30-MS7) With F-DI infeed For ET 200SP motor starter With infeed 500 V Incl. infeed bus cover","During Storage":"-40 ... +70 °C","lifecycle_stage":"current","Ampacity Maximum":"7 A","During Operation":"-25 ... +60 °C; For derating see manual","During Transport":"-40 ... +70 °C","Fastening Method":"DIN rail","Product Category":"Accessories","Shock Resistance":"6g / 11 ms","Mounting Position":"vertical, horizontal","at DC rated value":"24 V","Product Brand Name":"SIMATIC","Degree Of Pollution":"2","Maximum Permissible":"28.8 V","Minimum Permissible":"20.4 V","Product Designation":"BaseUnit","Vibration Resistance":"15 mm to 6 Hz; 2g to 500 Hz","for signal <1> at DC":"15 ... 30","Design Of The Product":"with AC infeed, with F-DI infeed","with signal <0> at DC":"0 ... 5 V","For Main Current Circuit":"spring-loaded terminals (push-in)","Number Of Digital Inputs":"1","Single Or Multi-Stranded":"0.5 ... 2.5 mm²","for AWG cables for supply":"1x 18 ... 10","Size Of The Screwdriver Tip":"Standard screwdriver 0.6 mm x 3.5 mm","Type Of Connecting Terminal":"Push-in terminal","Shape Of The Screwdriver Tip":"Slot","Type Of Input Characteristic":"Type 1 in accordance with EN 61131-2","Operating Voltage Rated Value":"500 V","Substance Prohibitance (Date)":"04/15/2016","Insulation Voltage Rated Value":"500 V","operating voltage of AC supply":"500 V","For Auxiliary And Control Circuit":"spring-loaded terminals (push-in)","Between Main And Auxiliary Circuit":"500 V","Relative Humidity During Operation":"10 ... 95 %","air pressure according to SN 31205":"900 ... 1 060 hPa","supply voltage 1 at DC rated value":"24 V","Surge Voltage Resistance Rated Value":"6 kV","Type Of Voltage Of The Supply Voltage":"DC","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²","Number Of Poles For Main Current Circuit":"3","Type Of Voltage Of The Operating Voltage":"AC","Finely Stranded Without Core End Processing":"0.5 ... 2.5 mm²","operational current at AC at 400 V rated value":"32 A; Derating, see Manual","Installation Altitude At Height Above Sea Level Maximum":"4 000 m; For derating see manual","AWG number at DC input as coded connectable conductor cross section":"20 ... 12","type of connectable conductor cross-sections for AWG cables for load-side outgoing feeder":"1x 20 ... 12"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$96.52","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2506c84bc50fd54eb200b0e325c9c833.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1389405&mlfb=3RK1908-0AP00-0GP0"},"ai":{"faq":[{"question":"Where can I buy 3RK1908-0AP00-0GP0 and how do I get a price?","answer":"This BaseUnit is available to order through independent distribution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1908-0AP00-0GP0","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/3RK1908-0AP00-0GP0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}