{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1325-6KS71-3AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1325-6KS71-3AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1325-6KS71-3AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6KS71-3AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing motor starter, 3RK1325-6KS71-3AA0, 0.75 kW at 400 V, IP65, AS-Interface, 4 digital inputs, 1 digital output, trip classes 5/10/15/20.","salesMarkdown":"The Siemens SIRIUS 3RK1325-6KS71-3AA0 is a reversing motor starter designed for direct-on-line reversing of three-phase motors up to 0.75 kW at 400 V (0.7 hp at 460/480 V). The AS-Interface protocol on board handles both control and diagnostics over a single two-wire cable, so no separate control wiring to a PLC cabinet is needed. Four digital inputs and one digital output are available for local sensors and status feedback. The trip class is selectable between CLASS 5, 10, 15, and 20. That range covers fast-acting protection for short-acceleration pumps (CLASS 5) through to high-inertia loads like centrifuges (CLASS 20). The unit is a reversing starter — it includes two contactors mechanically interlocked so the motor can be run forward and reverse without external interlocking relays. Supply voltage is 24 V DC (20.4 to 28.8 V range, max 31.6 V), which is the standard control voltage for most modern PLC and fieldbus systems. ON-delay is 25 ms, OFF-delay 35 ms — these are the response times of the internal logic, not the main contactor dropout. For the main circuit, the power connection uses a HAN Q4/2 plug (ISO 23570), so verify your panel has the mating connector or order it separately. Mounting is by screw fixing (no DIN-rail clip). The unit can be installed vertically, horizontally, or flat — but the manufacturer recommends horizontal orientation for best thermal performance. Dimensions are 294 mm wide, 215 mm high, 159 mm deep — a substantial footprint, so check your gland plate and sidewall clearance before committing. Vibration resistance is 7 mm / 2g; shock resistance is 12g for 11 ms — typical for machine-mounted gear near presses or conveyors.","metaTitle":"Siemens 3RK1325-6KS71-3AA0 SIRIUS Reversing Starter, 0.75 kW","metaDescription":"Siemens SIRIUS 3RK1325-6KS71-3AA0 reversing motor starter, 0.75 kW at 400 V, IP65, AS-Interface, 4 DI/1 DO, 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":"3RK1325-6KS71-3AA0","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 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 with manual on-site operation and key-operated switch","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":"Yes","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/0161cc04dcbbef60a7d4285f18248502.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=8357&mlfb=3RK1325-6KS71-3AA0"},"ai":{"faq":[{"question":"What is the supply voltage range for 3RK1325-6KS71-3AA0?","answer":"The control supply is 24 V DC, with a permissible range of 20.4 to 28.8 V and an absolute maximum of 31.6 V. The minimum operating voltage is 26.5 V under load."},{"question":"What trip classes does this reversing starter support?","answer":"It supports CLASS 5, 10, 15, and 20, selectable to match the motor load characteristic — from fast protection for pumps to delayed tripping for high-inertia loads."},{"question":"What is the IP rating and where can it be mounted?","answer":"IP65 protection means the housing is dust-tight and protected against low-pressure water jets — suitable for machine-mount or washdown areas without an additional enclosure. Mounting can be vertical, horizontal, or flat; horizontal is recommended for thermal performance."},{"question":"Where can I buy 3RK1325-6KS71-3AA0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1325-6KS71-3AA0","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/3RK1325-6KS71-3AA0 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}}