{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1908-0AP00-0DP0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1908-0AP00-0DP0","canonicalUrl":"https://aoctrl.com/siemens/3RK1908-0AP00-0DP0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1908-0AP00-0DP0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC 3RK1908-0AP00-0DP0 BaseUnit, 30 mm width, 75 mm depth, 215 mm height, 7 A, 24 VDC, push-in terminals, DIN rail mount, without feed-in.","salesMarkdown":"## DIN-rail base unit for SIMATIC remote I/O The 3RK1908-0AP00-0DP0 is a SIMATIC BaseUnit — the mechanical and electrical backbone that a remote I/O module snaps onto. It takes 30 mm of DIN-rail width and stands 215 mm tall, with a 75 mm depth that leaves room behind the module for wiring fingers. Rated for 7 A maximum on the main current circuit, it carries three poles via push-in spring-loaded terminals — the same terminal type on the auxiliary and control side. The 24 VDC supply (20.4 V min, 28.8 V max) powers the base and the module above it. ## Terminal and wiring detail This is the 'without feed-in' variant, meaning it does not integrate a power bus pass-through — each base is individually wired for its supply. For a multi-drop string, you would use the feed-in version or add a separate power distribution block. Vibration resistance is 2g up to 500 Hz (15 mm displacement below 6 Hz); shock is 6g for 11 ms. Pollution degree 2 — suitable for a typical control cabinet interior.","metaTitle":"Siemens 3RK1908-0AP00-0DP0 SIMATIC BaseUnit, 30 mm, 7 A","metaDescription":"Siemens 3RK1908-0AP00-0DP0 SIMATIC BaseUnit, 30 mm width, 7 A, 24 VDC, push-in terminals, DIN rail mount. Current lifecycle stage. Quoted to order.","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":"3RK1908-0AP00-0DP0","Height":"215 mm","Upwards":"50 mm","Downwards":"50 mm","description":"Base unit (BU30-MS4) For ET 200SP motor starter Without infeed","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","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","Design Of The Product":"Without feed in","For Main Current Circuit":"spring-loaded terminals (push-in)","Number Of Digital Inputs":"0","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","Operating Voltage Rated Value":"500 V","Substance Prohibitance (Date)":"04/15/2016","Insulation Voltage Rated Value":"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":"1x 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":"1x 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","type of connectable conductor cross-sections at AWG cables for load-side outgoing feeder":"1x 20 ... 12"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$64.77","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=567108&mlfb=3RK1908-0AP00-0DP0"},"ai":{"faq":[{"question":"What is the physical size of 3RK1908-0AP00-0DP0?","answer":"It measures 30 mm wide, 75 mm deep, and 215 mm tall. The DIN-rail mounting position can be vertical or horizontal."},{"question":"What wire size and terminal type does this base use?","answer":"A 0.6 mm x 3.5 mm slot screwdriver releases the clamp."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1908-0AP00-0DP0","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/3RK1908-0AP00-0DP0 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}}