{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1325-6KS41-1AA5","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1325-6KS41-1AA5","canonicalUrl":"https://aoctrl.com/siemens/3RK1325-6KS41-1AA5","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6KS41-1AA5","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing motor starter, 3RK1325-6KS41-1AA5, 0.75 kW at 400 V, IP65, AS-Interface, trip classes 5/10/15/20.","salesMarkdown":"## SIRIUS reversing starter with AS-Interface The Siemens 3RK1325-6KS41-1AA5 is a SIRIUS 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, 1 hp at 575/600 V). It integrates the reversing contactor pair, overload protection, and AS-Interface communication into a single IP65-rated enclosure — no separate control cabinet needed for distributed motor control. The AS-Interface protocol connection handles addressing via an M12 plug, with four digital inputs available for local sensors or pushbuttons. Supply voltage is 24 V DC (20.4…28.8 V range), and the unit draws its logic power from the AS-i bus or an auxiliary 24 V feed. ## Trip class and motor protection The overload relay is field-selectable among trip classes 5, 10, 15, and 20. Class 10 is the standard motor-protection setting for general-purpose induction motors; Class 20 accommodates high-inertia loads like fans or centrifuges where start time exceeds 10 seconds. Class 5 is used for fast-acting protection on short-start applications or submersible pumps. ON-delay is 85 ms, OFF-delay 65 ms — these are the internal response times for the reversing contactor pair, not the overload trip curve. The unit supports both direct start (via the reversing contactors) and reverse starting, but does not include a separate direct-start contactor; reversing is inherent to the design. Rated IP65, the enclosure is suitable for washdown environments and outdoor installation where hose-directed water is present. Shock resistance is 12 g / 11 ms, vibration resistance 7 mm / 2 g — adequate for machine-mounted applications on conveyors, packaging lines, or pump skids. Mounting is via screw fixing in any orientation — vertical, horizontal, or flat — though horizontal is recommended for optimal heat dissipation from the power semiconductors. Dimensions are 294 mm wide × 215 mm high × 159 mm deep. The main power connection uses a HAN Q4/2 plug per ISO 23570; the AS-Interface and digital inputs connect via M12 plugs. The part carries no UL or CSA listing in the available evidence; compliance documentation (RoHS, REACH) should be requested from the manufacturer or distributor at time of order.","metaTitle":"Siemens 3RK1325-6KS41-1AA5 SIRIUS Reversing Starter, 0.75 kW","metaDescription":"Siemens SIRIUS 3RK1325-6KS41-1AA5 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":"3RK1325-6KS41-1AA5","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 with brake contact 180 V DC 4 DI / 1 DO AS-i Han Q4/2 - Han Q8/0","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":"No","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":"Yes","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":"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/9a4023b2516ffbc0d2e6b45494124307.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=87308&mlfb=3RK1325-6KS41-1AA5"},"ai":{"faq":[{"question":"Where can I buy 3RK1325-6KS41-1AA5?","answer":"This part is sourced to order against an RFQ through independent industrial distribution. Availability and current pricing are confirmed at quote time."},{"question":"What are the key dimensions of 3RK1325-6KS41-1AA5?","answer":"Width 294 mm, height 215 mm, depth 159 mm. Mounting is via screw fixing in any orientation; horizontal is recommended for thermal performance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1325-6KS41-1AA5","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/3RK1325-6KS41-1AA5 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}}