{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1325-6LS71-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1325-6LS71-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1325-6LS71-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6LS71-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing motor starter, 3RK1325-6LS71-1AA0, IP65, AS-Interface, 5.5 kW at 400 V, trip classes 5/10/15/20.","salesMarkdown":"The Siemens 3RK1325-6LS71-1AA0 is a SIRIUS reversing motor starter in an IP65 enclosure, designed for direct-on-line reversing of three-phase motors up to 5.5 kW at 400 V (7.5 hp at 460/480 V, 3 hp at 220/230 V). It integrates a contactor, overload relay, and reversing interlock into one package, saving panel space and wiring time on reversing applications like conveyors, hoists, and door drives. This class of reversing starter is specified for motor loads that must run in both directions — conveyor belts, transfer stations, hoists, gate operators, and mixing vessels. The integrated reversing interlock prevents both contactors from closing simultaneously, which is a safety requirement per IEC 60947-4-1. The IP65 enclosure allows mounting directly on the machine frame rather than in a central panel, reducing field wiring runs.","metaTitle":"Siemens 3RK1325-6LS71-1AA0 SIRIUS Reversing Starter, 5.5 kW","metaDescription":"Siemens SIRIUS 3RK1325-6LS71-1AA0 reversing motor starter. IP65, AS-Interface, 5.5 kW at 400 V, trip classes 5-20. Active production. Sourced to order.","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","Height":"215 mm","Trip Class":"CLASS 5, 10, 15, 20","Recommended":"horizontal","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":"5.5 kW","at 500 V rated value":"5 500 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 220/230 V rated value":"3 hp","at 460/480 V rated value":"7.5 hp","For Digital Input Signals":"4","Number Of Digital Outputs":"1","For Digital Output Signals":"1","at AC at 400 V rated value":"12 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":"0.1 A","Type Of The Motor Protection":"full motor protection","at AC-3 at 400 V rated value":"12 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":"8.2656 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":"11 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":"1.5 ... 12 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/bfa04aef321e1336b450850c13c5f8c3.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=445283&mlfb=3RK1325-6LS71-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6LS71-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor power ratings for this starter?","answer":"It is rated at 5.5 kW at 400 V, 5 500 W at 500 V, 3 hp at 220/230 V, and 7.5 hp at 460/480 V. These cover common European and North American motor sizes."},{"question":"What trip classes does this overload relay support?","answer":"The trip class is selectable between CLASS 5, 10, 15, and 20, allowing the same starter to be used with standard motors (CLASS 10) or high-inertia loads (CLASS 20)."},{"question":"What communication protocol does this starter use?","answer":"It uses AS-Interface protocol for communication. Addressing is done through an M12 plug. It does not support PROFIBUS DP or PROFINET."},{"question":"What is the physical size of this starter?","answer":"The dimensions are 294 mm wide, 215 mm high, and 159 mm deep. It mounts via screw fixing and can be installed vertically, horizontally, or flat."},{"question":"What environmental ratings does it carry?","answer":"The enclosure is IP65 (dust-tight and protected against water jets). Operating temperature range is -25 to +55 °C, storage and transport range is -40 to +70 °C. It withstands shock at 12g / 11 ms and vibration at 7 mm / 2g."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1325-6LS71-1AA0","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/3RK1325-6LS71-1AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}