{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1325-6KS71-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1325-6KS71-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1325-6KS71-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6KS71-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing motor starter, 3RK1325-6KS71-1AA0, 0.75 kW at 400 V, 24 V DC supply, IP65, AS-Interface, trip classes 5/10/15/20.","salesMarkdown":"The Siemens SIRIUS 3RK1325-6KS71-1AA0 is a reversing motor starter — a single enclosure that handles forward/reverse control of a three-phase motor up to 0.75 kW at 400 V (0.7 hp at 460/480 V). It is designed as a reversing starter, meaning it integrates two contactor paths and mechanical interlocking for direction reversal without external wiring. The 24 V DC control supply (20.4...28.8 V range) powers the onboard logic and AS-Interface communication. IP65 protection means the enclosure withstands washdown environments — suitable for food-and-bev or outdoor conveyor lines where dust and hose-directed water are present. The trip class selection (CLASS 5, 10, 15, 20) lets you match the overload relay's thermal curve to the motor's starting profile — CLASS 10 for standard-start pumps and fans, CLASS 20 for high-inertia loads like centrifuges or crushers that take longer to accelerate. The 0.75 kW at 400 V rating (0.7 hp at 460/480 V) sets the maximum motor size this starter can switch in AC-3 duty; a larger motor would overload the contactor's breaking capacity. Four digital inputs and one digital output are available for local sensors or status feedback, all wired through the M12 plug addressing port. The 25 ms ON-delay and 35 ms OFF-delay are fixed — no field adjustment — so sequence timing must accommodate these windows. Mounting is via screw fixing, not DIN rail — plan for four drilled holes in the backplate. The enclosure measures 294 mm wide by 215 mm high by 159 mm deep; the width is the dimension that drives cabinet cutout spacing, especially when ganging multiple starters. Mounting position is flexible (vertical, horizontal, or flat), though horizontal is recommended for optimal heat dissipation. Shock resistance is rated at 12g for 11 ms, and vibration resistance at 7 mm / 2g — this starter survives on mobile equipment or near heavy machinery without nuisance trips. ## Communication and connectivity The starter communicates via AS-Interface (Actuator-Sensor Interface) — a fieldbus common in material handling and packaging lines for connecting binary sensors and actuators. It does not support PROFIBUS DP or PROFINET, so if your control network is Siemens S7 with PROFINET, you will need a gateway or a different starter variant. Device addressing is done through an M12 plug, which is standard for AS-i nodes. The main circuit connects via a HAN Q4/2 plug conforming to ISO 23570 — a heavy-duty industrial connector rated for the motor current. No direct start capability; the reversing starter always requires a forward/reverse command from the AS-i master.","metaTitle":"Siemens SIRIUS 3RK1325-6KS71-1AA0 Reversing Motor Starter, 0","metaDescription":"Siemens SIRIUS reversing motor starter 3RK1325-6KS71-1AA0, 0.75 kW at 400 V, 24 V DC supply, IP65, AS-Interface. Current lifecycle stage. 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":"3RK1325-6KS71-1AA0","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 Electronic 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","Direct Start":"No","ON-delay time":"25 ms","During Storage":"-40 ... +70 °C","OFF-delay time":"35 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":"No","PROFINET protocol":"No","at DC rated value":"20.4 ... 28.8 V","Product Brand Name":"SIRIUS","Type Of Assignment":"1","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","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":"solid-state / thyristor / 2 phases","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":"6.9696 W","in switching state OFF with bypass circuit":"1.9872 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 (group 2)","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":"480 V","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/515b9aae3e60ee3ada10c02051b39b0a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=496997&mlfb=3RK1325-6KS71-1AA0"},"ai":{"faq":[{"question":"Where can I buy 3RK1325-6KS71-1AA0 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote."},{"question":"What compliance documentation does Siemens provide for this starter?","answer":"As a current-production Siemens SIRIUS product, this starter ships with a CE declaration of conformity and is designed to meet IEC/EN 60947-4-1 for motor starters. RoHS and REACH compliance documentation is available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1325-6KS71-1AA0","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/3RK1325-6KS71-1AA0 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}}