{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1395-6LS41-0AD3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1395-6LS41-0AD3","canonicalUrl":"https://aoctrl.com/siemens/3RK1395-6LS41-0AD3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1395-6LS41-0AD3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS direct motor starter, 3RK1395-6LS41-0AD3, 12 A at 400 V AC, selectable Trip Class 5/10/15/20, IP65, 4 digital inputs, 2 digital outputs.","salesMarkdown":"The Siemens SIRIUS 3RK1395-6LS41-0AD3 is a direct motor starter in a self-contained IP65-rated enclosure, designed for distributed motor control where the starter lives at the load rather than in a central panel. Its 12 A rating at 400 V AC (AC-3 duty) covers motors up to 5.5 kW at 400 V, 7.5 hp at 460/480 V, or 10 hp at 575/600 V — so it handles the common 3-phase induction motor sizes you see on pumps, conveyors, and small fans. The Trip Class is field-selectable among 5, 10, 15, and 20, which means you tune the overload protection to the motor's starting characteristic: a hard-starting compressor gets Class 20, a low-inertia fan gets Class 10. That flexibility saves stocking multiple variants. ## Where it lives and how it connects The main power circuit connects via a HAN Q4/2 plug per ISO 23570, a standard industrial connector that makes swap-out fast: unplug the old starter, plug in the replacement, torque the four screws. Screw fixing to the mounting surface, and you can orient it vertically, horizontally, or flat — no derating for sideways mounting. Dimensions are 215 mm high, 294 mm wide, 148 mm deep. ## Control and I/O The starter carries 4 digital inputs and 2 digital outputs, enough for local start/stop, feedback from the motor, and a run-status signal back to the PLC. It runs on a 24 V DC control supply (20.4 to 28.8 V range), which is standard for modern automation. On-delay is 85 ms, off-delay 65 ms — fast enough for sequencing but not so fast that it false-triggers on contact bounce. No PROFINET or PROFIBUS onboard; this is a hardwired I/O block, not a fieldbus node. ## Environmental tolerance Shock resistance is 12g for 11 ms; vibration resistance is 7 mm at 2g. That covers the mechanical stress on a machine-mounted starter from normal production line vibration and occasional bumps.","metaTitle":"Siemens SIRIUS 3RK1395-6LS41-0AD3 Motor Starter, 12A at 400V","metaDescription":"Siemens SIRIUS 3RK1395-6LS41-0AD3 direct motor starter. Rated 12A at 400V AC, selectable Trip Class 5/10/15/20. IP65 enclosure, 4 DI / 2 DO. Current 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":"148 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":"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","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":"No","Design Of The Product":"direct starter","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":"2","For Digital Output Signals":"2","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":"Yes","brake control with 400 V AC":"Yes","brake control with 500 V DC":"No","1 For Digital Output Signals":"M12 socket","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 %","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","Product Function Short Circuit Protection":"Yes","Touch Protection Against Electrical Shock":"finger-safe","in switching state ON with bypass circuit":"5.04 W","in switching state OFF with bypass circuit":"1.9584 W","protocol is supported AS-Interface protocol":"No","Control Circuit Interface To Parallel Wiring":"No","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","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":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/9766f31549d6ca16f609ec033186c745.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=470895&mlfb=3RK1395-6LS41-0AD3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1395-6LS41-0AD3/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this motor starter?","answer":"It is rated 12 A at 400 V AC (AC-3 duty), covering motors up to 5.5 kW at 400 V, 7.5 hp at 460/480 V, or 10 hp at 575/600 V. Trip Class is selectable among 5, 10, 15, and 20. Control supply is 24 V DC (20.4 to 28.8 V)."},{"question":"What is the physical size and mounting method?","answer":"Dimensions are 215 mm high, 294 mm wide, 148 mm deep. It mounts via screw fixing and can be oriented vertically, horizontally, or flat. The main power connects through a HAN Q4/2 plug per ISO 23570."},{"question":"What is the enclosure rating and where can it be installed?","answer":"IP65, meaning it is dust-tight and protected against water jets. It is designed for direct machine-mounting in washdown or dusty environments, not just inside a control cabinet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1395-6LS41-0AD3","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/3RK1395-6LS41-0AD3 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}}