{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1325-6KS41-2AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1325-6KS41-2AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1325-6KS41-2AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6KS41-2AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS direct motor starter, 3RK1325-6KS41-2AA3, IP65, AS-Interface, 4 digital inputs, trip class 5/10/15/20, 24 VDC supply, 159 x 294 x 215 mm.","salesMarkdown":"The Siemens 3RK1325-6KS41-2AA3 is a SIRIUS direct motor starter in a fully enclosed IP65 housing, designed for distributed motor control on AS-Interface networks. It integrates the contactor, overload protection, and AS-i communication into one field-mounted unit — no separate control cabinet needed for the motor branch. The 24 VDC supply (20.4 to 28.8 V) powers both the logic and the coil, and the unit accepts four digital inputs for local sensors or pushbuttons. ## Trip class flexibility and motor protection The overload relay is selectable among trip classes 5, 10, 15, and 20, which means you can match the thermal memory to the start profile of the load — fast starts (class 5) for low-inertia fans, slower starts (class 20) for high-inertia conveyors or crushers. This is the same trip-class range found on Siemens stand-alone overloads, so coordination with upstream breakers follows familiar curves. The housing measures 159 mm deep by 294 mm wide by 215 mm high, with screw fixing for panel or machine-frame mounting. It can be installed vertically, horizontally, or flat, though horizontal orientation is recommended for thermal performance. Vibration resistance is 7 mm / 2g, shock resistance 12g / 11 ms — suitable for machine-mounted applications on pumps, conveyors, and small compressors. ## Network and I/O architecture Communication is via AS-Interface only — no PROFIBUS or PROFINET on this variant. Device addressing uses an M12 plug. The main circuit connection is a HAN Q4/2 plug per ISO 23570. Four digital inputs are available for local sensing; the starter supports direct-on-line starting (no reversing). On-delay is 85 ms, off-delay 65 ms.","metaTitle":"Siemens 3RK1325-6KS41-2AA3 SIRIUS Motor Starter, IP65, AS-In","metaDescription":"Siemens SIRIUS 3RK1325-6KS41-2AA3 direct motor starter, IP65, AS-Interface, 4 DI, trip class 5-20, 24 VDC. Active production. Sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"159 mm","Width":"294 mm","at DC":"20.4 ... 28.8 V","title":"3RK1325-6KS41-2AA3","Height":"215 mm","Trip Class":"CLASS 5, 10, 15, 20","Recommended":"horizontal","description":"SIRIUS motor starter M200D AS-i Communication: AS-Interface DOL starter Standard Mechanical switching AC-3, 0.75KW / 400 V 0.15 A...2.00 A Electronic overload protection Thermistor: THERMOCLICK / PTC with brake contact 400 V AC 4 DI / 1 DO AS-i Han Q4/2 - Han Q8/0 with manual on-site operation and key-operated switch","Direct Start":"Yes","ON-delay time":"85 ms","During Storage":"-40 ... +70 °C","OFF-delay time":"65 ms","lifecycle_stage":"current","During Operation":"-25 ... +55 °C","During Transport":"-40 ... +70 °C","Fastening Method":"screw fixing","Reverse Starting":"No","Shock Resistance":"12g / 11 ms","Mounting Position":"vertical, horizontal, flat","On-Site Operation":"Yes","PROFINET protocol":"No","at DC rated value":"20.4 ... 28.8 V","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Degree Of Pollution":"3","Maximum Permissible":"31.6 V","Minimum Permissible":"26.5 V","Product Designation":"Motor starters","protection class IP":"IP65","PROFIBUS DP protocol":"No","Vibration Resistance":"7 mm / 2g","at 400 V rated value":"0.75 kW","at 500 V rated value":"750 W","AS-Interface protocol":"Yes","Design Of The Product":"direct starter","For Device Addressing":"M12 plug","supply voltage 1 at DC":"24 V","For Main Current Circuit":"plug according to ISO 23570, HAN Q4/2","Number Of Digital Inputs":"4","at 460/480 V rated value":"0.7 hp","at 575/600 V rated value":"1 hp","For Digital Input Signals":"4","Number Of Digital Outputs":"1","For Digital Output Signals":"1","at AC at 400 V rated value":"2 A","brake control with 24 V DC":"No","1 For Digital Input Signals":"M12 socket","2 For Digital Input Signals":"M12 socket","3 For Digital Input Signals":"M12 socket","4 For Digital Input Signals":"M12 socket","brake control with 180 V DC":"No","brake control with 230 V AC":"Yes","brake control with 400 V AC":"Yes","brake control with 500 V DC":"No","1 For Digital Output Signals":"M12 socket","For Supply Voltage Line-Side":"M12 plug","In Standby Mode Of Operation":"100 mA","Type Of The Motor Protection":"full motor protection","at AC-3 at 400 V rated value":"2 A","Operating Voltage Rated Value":"200 ... 440 V","Substance Prohibitance (Date)":"07/01/2006","Digital Inputs Parameterizable":"Yes","Insulation Voltage Rated Value":"500 V","Design Of The Switching Contact":"electromechanical","Digital Outputs Parameterizable":"Yes","For Auxiliary And Control Circuit":"connector","Between Main And Auxiliary Circuit":"400 V","Design Of Short-Circuit Protection":"circuit-breakers","Product Function Bus Communication":"Yes","Relative Humidity During Operation":"10 ... 95 %","supply voltage 1 at DC rated value":"30 V","Product Component Motor Brake Output":"Yes","Surge Voltage Resistance Rated Value":"6 000 V","Between Control And Auxiliary Circuit":"24 V","EMC immunity according to IEC 60947-1":"corresponds to degree of severity 3, ambience A (industrial sector)","Type Of Voltage Of The Supply Voltage":"DC","due to burst according to IEC 61000-4-4":"2 kV network connection / 1 kV control connection","Number Of Poles For Main Current Circuit":"3","control supply voltage at DC rated value":"20.4 ... 28.8 V","Product Function Short Circuit Protection":"Yes","Touch Protection Against Electrical Shock":"finger-safe","in switching state ON with bypass circuit":"4.1184 W","in switching state OFF with bypass circuit":"2.0736 W","protocol is supported AS-Interface protocol":"Yes","Control Circuit Interface To Parallel Wiring":"No","At The Manufacturer-Specific Device Interface":"optical interface","Type Of Voltage Of The Control Supply Voltage":"DC","EMC emitted interference according to IEC 60947-1":"CISPR11, ambience A (industrial sector)","Product Extension Braking Module For Brake Control":"No","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","product function control circuit interface with IO link":"No","Type Of Electrical Connection Of The Communication Interface":"M12 plug","full-load current (FLA) for 3-phase AC motor at 480 V rated value":"1.6 A","operating voltage at AC at 60 Hz according to CSA and UL rated value":"600 V","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"10 000 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.15 ... 2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cf62823d49254e5a4e161103a86a61ac.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=43399&mlfb=3RK1325-6KS41-2AA3"},"ai":{"faq":[{"question":"Where can I buy 3RK1325-6KS41-2AA3?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for this starter?","answer":"As a Siemens SIRIUS product, it carries CE marking and is designed to relevant IEC/EN standards for motor starters. Specific RoHS, REACH, and UL documentation can be provided with the order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1325-6KS41-2AA3","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/3RK1325-6KS41-2AA3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:41:02.429Z","lastPublished":"2026-07-20T14:41:02.429Z","indexable":true}}