{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1304-5KS40-5AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1304-5KS40-5AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1304-5KS40-5AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1304-5KS40-5AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC motor starter, reversing starter, 3RK1304-5KS40-5AA0, CLASS 10, 2 A at 400 V AC, IP65, PROFINET, 100 kA SCCR.","salesMarkdown":"The Siemens SIMATIC 3RK1304-5KS40-5AA0 is a reversing motor starter — a compact, IP65-rated unit that handles forward/reverse control of a three-phase motor up to 2 A at 400 V AC, with a CLASS 10 trip curve for overload protection. It's built for distributed installation right at the motor, not back in a central panel, which cuts wiring runs and simplifies zone-based machine layouts. Supply is 24 V DC nominal (20.4 to 28.8 V range), so it plays nicely with standard control voltages. PROFINET and PROFIBUS DP are both onboard — no separate gateway module needed for the fieldbus connection. The 2-byte input and 2-byte I/O mapping keeps the data exchange lean for basic start/stop and status feedback. Mounts via screw fixing in either vertical or horizontal orientation, which gives flexibility in tight enclosures or on machine frames. Dimensions are 150 mm deep, 110 mm wide, 230 mm tall — a compact footprint for a reversing starter with integrated bypass. The main energy infeed uses a socket per ISO 23570, so the power connection is standardized and keyed. Digital I/O connections are via M12 sockets — common for distributed I/O in food-and-bev or packaging lines where IP65 is needed. Environmental range covers -25 to +55 °C operating, -40 to +70 °C storage/transport. Shock rated at 15g / 11 ms, vibration at 2g — solid for machine-mounted duty on conveyors, pumps, or fans.","metaTitle":"Siemens SIMATIC 3RK1304-5KS40-5AA0 Reversing Motor Starter,","metaDescription":"Siemens SIMATIC 3RK1304-5KS40-5AA0 reversing motor starter, CLASS 10 trip, 2 A at 400 V AC, IP65, 100 kA SCCR. Current lifecycle. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"150 mm","Width":"110 mm","at DC":"24 ... 24 V","title":"3RK1304-5KS40-5AA0","Height":"230 mm","Trip Class":"CLASS 10","description":"ET 200pro RSE ST Reversing starter standard Mechanical switching Electronic overload protection AC-3, 0.9 kW / 400 V 0.15 A...2.00 A without brake contact Han Q4/2 - Han Q8/0","Direct Start":"No","Of The Inputs":"2 byte","During Storage":"-40 ... +70 °C","Of The Outputs":"2 byte","Type Of Voltage":"AC","lifecycle_stage":"current","During Operation":"-25 ... +55 °C","During Transport":"-40 ... +70 °C","Fastening Method":"screw fixing","Reverse Starting":"Yes","Shock Resistance":"15g / 11 ms","Mounting Position":"vertical, horizontal","PROFINET protocol":"Yes","at DC rated value":"20.4 ... 28.8 V","Product Brand Name":"SIMATIC","Type Of Assignment":"1","Degree Of Pollution":"3","Maximum Permissible":"28.8 V","Minimum Permissible":"20.4 V","Product Designation":"Motor starters","With Bypass Circuit":"3.888 W","protection class IP":"IP65","PROFIBUS DP protocol":"Yes","Vibration Resistance":"2g","at 400 V rated value":"100 000 A","Design Of The Product":"reversing starter","For Main Energy Infeed":"socket according to ISO23570","Without Bypass Circuit":"3.888 W","supply voltage 1 at DC":"24 ... 24 V","Number Of Digital Inputs":"0","For Digital Input Signals":"0","For Digital Output Signals":"0","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","For Main Energy Transmission":"socket according to ISO23570","For Supply Voltage Line-Side":"via backplane bus","Type Of The Motor Protection":"solid-state","at AC-3 at 400 V rated value":"900 W","For Load-Side Outgoing Feeder":"socket according to ISO23570","Operating Voltage Rated Value":"200 ... 400 V","Substance Prohibitance (Date)":"05/01/2012","supports PROFIenergy shutdown":"Yes","Digital Inputs Parameterizable":"No","Insulation Voltage Rated Value":"400 V","Design Of The Switching Contact":"electromechanical","Digital Outputs Parameterizable":"No","For Supply Voltage Transmission":"via backplane bus","Design Of Short-Circuit Protection":"fuse","Product Function Bus Communication":"Yes","Product Function On-Site Operation":"Yes","Relative Humidity During Operation":"5 ... 95 %","Product Component Motor Brake Output":"No","Surge Voltage Resistance Rated Value":"6 kV","supports PROFIenergy measured values":"Yes","Type Of Voltage Of The Supply Voltage":"DC","reference code according to IEC 81346-2":"Q","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","design of the interface PROFINET protocol":"Yes","with low demand rate according to SN 31920":"100 FIT","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"75 %","At The Manufacturer-Specific Device Interface":"optical interface","Type Of Voltage Of The Control Supply Voltage":"DC","Type Of Electrical Connection For Main Current Circuit":"tab terminals","Installation Altitude At Height Above Sea Level Maximum":"3 500 m","Type Of Electrical Connection Of The Communication Interface":"via backplane bus","operating range relative to the operating voltage at AC at 50 Hz":"200 ... 440 V","operating voltage at AC at 60 Hz according to CSA and UL rated value":"600 V","Mechanical Service Life (Operating Cycles) Of The Main Contacts Typical":"30 000 000","Maximum Permissible Voltage For Safe Isolation Between Main And Auxiliary Circuit":"400 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/7a99145b2a92a9fdefa25d152c960127.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=448211&mlfb=3RK1304-5KS40-5AA0"},"ai":{"faq":[{"question":"What fieldbus protocols does this starter support?","answer":"It has both PROFINET and PROFIBUS DP onboard — no separate gateway module needed for either protocol."},{"question":"What is the IP rating and environmental spec?","answer":"IP65 rated, operating temperature -25 to +55 °C, storage/transport -40 to +70 °C. Shock 15g/11 ms, vibration 2g. Pollution degree 3."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1304-5KS40-5AA0","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/3RK1304-5KS40-5AA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}