{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1325-6KS41-3AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1325-6KS41-3AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1325-6KS41-3AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6KS41-3AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing motor starter, 3RK1325-6KS41-3AA0, 0.75 kW at 400 V, IP65, AS-Interface, trip classes 5/10/15/20.","salesMarkdown":"## SIRIUS reversing starter with AS-Interface The Siemens SIRIUS 3RK1325-6KS41-3AA0 is a reversing motor starter rated for 0.75 kW at 400 V AC, with an IP65 enclosure that allows direct mounting on the machine frame or in a washdown zone without a separate panel. It communicates over AS-Interface for control and diagnostics, so the line integration is straightforward if you already have an AS-i master on the network. The supply voltage range is 20.4 to 28.8 V DC, with a maximum permissible of 31.6 V and a minimum of 26.5 V — stay within that window to keep the electronics happy. The 24 V DC nominal is standard for control circuits. ## Trip class and motor protection Trip class is selectable between CLASS 5, 10, 15, and 20. That means you can match the overload curve to the motor's starting profile — CLASS 5 for short acceleration times on low-inertia loads like pumps, CLASS 20 for high-inertia starts like centrifuges or large fans. The ON-delay is 85 ms and OFF-delay 65 ms, which governs how fast the starter responds to a start/stop command from the AS-i network. Mounting position is flexible: vertical, horizontal, or flat. The recommended orientation is horizontal, but the other positions work if panel layout demands it. Fastening is by screw fixing — no DIN-rail clip, so budget for four M6 bolts and a backplate. Dimensions are 294 mm wide by 215 mm high by 159 mm deep; that's a substantial footprint, so check your gland plate clearance before committing. Shock resistance is 12g for 11 ms, vibration resistance 7 mm / 2g — tough enough for conveyor lines and machine tools. ## Wiring and connectivity The main current circuit connects via a HAN Q4/2 plug conforming to ISO 23570 — that's a standard industrial connector, so pre-wired harnesses are available. Device addressing uses an M12 plug, typical for AS-Interface nodes. There are 4 digital inputs for local sensors or pushbuttons, which can reduce the need for a separate I/O block. This is a reversing starter with reverse starting capability, but it does not support direct start. It has on-site operation via the local controls. No PROFINET or PROFIBUS DP — communication is AS-Interface only, so plan your network topology accordingly.","metaTitle":"Siemens 3RK1325-6KS41-3AA0 SIRIUS Reversing Starter, 0.75 kW","metaDescription":"Siemens SIRIUS 3RK1325-6KS41-3AA0 reversing motor starter, 0.75 kW at 400 V, IP65, AS-Interface, trip classes 5-20. Sourced to order against RFQ.","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":"3RK1325-6KS41-3AA0","Height":"215 mm","Trip Class":"CLASS 5, 10, 15, 20","Recommended":"horizontal","description":"SIRIUS motor starter M200D AS-i Communication: AS-Interface Reversing starter standard Mechanical switching AC-3, 0.75KW / 400 V 0.15 A...2.00 A Electronic overload protection Thermistor: THERMOCLICK / PTC without brake contact 4 DI / 1 DO AS-i Han Q4/2 - Han Q8/0 with manual on-site operation and key-operated switch","Direct Start":"No","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":"Yes","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":"reversing 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":"No","brake control with 400 V AC":"No","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":"No","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 (Operating 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/dc94fd0e30440ecfb2d16aabad46c93a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=150519&mlfb=3RK1325-6KS41-3AA0"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RK1325-6KS41-3AA0?","answer":"The peer MPNs 3RT5065-6NF36, 3RT1044-1FB46, and 3RT5065-6AB36 are in the same SIRIUS contactor/starter family but differ in form factor, communication protocol, and enclosure rating. The 3RK1325-6KS41-3AA0 is a reversing starter with AS-Interface and IP65 — a direct drop-in replacement would need the same AS-i interface and IP65 rating. The 3RT series parts are typically open-style contactors without integral communication or IP65, so rewiring and a separate enclosure would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1325-6KS41-3AA0","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/3RK1325-6KS41-3AA0 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}}