{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1325-6LS41-0AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1325-6LS41-0AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1325-6LS41-0AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1325-6LS41-0AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RK1325-6LS41-0AA0 direct starter, IP65, 5.5 kW at 400 V, 4 digital inputs, AS-Interface, screw fixing, 294×215×159 mm.","salesMarkdown":"## What this SIRIUS direct starter integrates The 3RK1325-6LS41-0AA0 is a SIRIUS direct starter with onboard remote I/O — it combines motor starting, overload protection, and fieldbus connectivity in one IP65 enclosure. Rated 5.5 kW at 400 V and 5.5 kW at 500 V, it also carries horsepower ratings of 3 hp at 220/230 V, 7.5 hp at 460/480 V, and 10 hp at 575/600 V — covering common motor voltages across North American and IEC installations. The overload relay is adjustable across trip classes 5, 10, 15, and 20, so you match the thermal curve to the motor start profile — fast starts on low-inertia loads or slower starts on high-inertia fans and conveyors. ## Environmental and mounting constraints Enclosure is IP65, rated for washdown environments — the unit withstands dust ingress and low-pressure water jets from any direction, suitable for food-and-bev or pharmaceutical lines where hose-down is routine. Operating temperature range is -25 to +55 °C, with storage and transport limits of -40 to +70 °C — the wider storage envelope matters for spares held in unheated warehouses. Vibration resistance is 7 mm / 2g and shock resistance is 12g / 11 ms, per the evidence — this is not a high-vibration-rated unit for direct machine mounting; plan for panel or stanchion mounting with vibration damping if the starter is near a reciprocating compressor or press. Mounting is by screw fixing — no DIN-rail clip on this form factor. The unit can be installed in vertical, horizontal, or flat orientation, though horizontal is recommended for optimal thermal convection through the IP65 housing. ## I/O and fieldbus connectivity Four digital inputs are onboard — these can be used for start/stop, reset, or status feedback directly at the starter, reducing the need for a separate remote I/O drop. Communication is via AS-Interface (AS-i) protocol — the unit is addressed through an M12 plug, which is the standard AS-i device connection. No PROFIBUS or PROFINET on this variant. The main circuit connection uses a plug according to ISO 23570, HAN Q4/2 — this is a heavy-duty industrial connector rated for the motor current, not a terminal block. The control supply is 24 V DC, with a permissible range of 20.4 to 28.8 V DC and a maximum of 31.6 V DC. ## Lifecycle and sourcing posture No stock-holding claim is made — request an RFQ for your quantity and delivery window.","metaTitle":"Siemens 3RK1325-6LS41-0AA0 SIRIUS direct starter, IP65","metaDescription":"Siemens 3RK1325-6LS41-0AA0 SIRIUS direct starter with integrated remote I/O, 4 digital inputs, AS-Interface, IP65, rated 5.5 kW at 400 V.","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":"3RK1325-6LS41-0AA0","Height":"215 mm","Trip Class":"CLASS 5, 10, 15, 20","Recommended":"horizontal","description":"Siemens 3RK1325-6LS41-0AA0 — now in phase-out and being discontinued, supplied from remaining surplus and broker stock.","Direct Start":"Yes","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":"No","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":"direct 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","at 575/600 V rated value":"10 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":"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":"11 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":"1.5 ... 12 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$398.63","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e5bfec99738e720ddf8a41c758be4a39.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=131502&mlfb=3RK1325-6LS41-0AA0"},"ai":{"faq":[{"question":"What trip classes are available on this starter?","answer":"The overload relay is adjustable to CLASS 5, 10, 15, or 20 — select the class that matches the motor start time and load inertia."},{"question":"How can I order the 3RK1325-6LS41-0AA0 or check availability?","answer":"This part is sourced to order against an RFQ through independent industrial distribution channels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1325-6LS41-0AA0","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/3RK1325-6LS41-0AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T18:19:35.907Z","lastPublished":"2026-07-20T18:19:35.907Z","indexable":true}}