{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1304-5LS70-2AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1304-5LS70-2AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1304-5LS70-2AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1304-5LS70-2AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC motor starter, 3RK1304-5LS70-2AA0, direct starter, 12 A at 400 V AC, IP65, PROFINET and PROFIBUS DP, adjustable trip class 5/10/20/30.","salesMarkdown":"The Siemens 3RK1304-5LS70-2AA0 is a SIMATIC-branded motor starter — a direct starter in an IP65 enclosure, meaning it's a self-contained motor-protection and switching unit that lives out on the machine frame, not inside a central panel. It's rated for 12 A at 400 V AC, which covers a typical 5.5 kW to 7.5 kW induction motor depending on duty cycle. The trip class is adjustable among CLASS 5, 10, 20, and 30. That lets you match the thermal overload curve to the start-up profile of the load — a conveyor with a long, heavy belt might need CLASS 20 to avoid nuisance tripping during acceleration, while a pump with a quick start can run on CLASS 10. It communicates over both PROFINET and PROFIBUS DP, so it drops into either a newer IO-controller architecture or a legacy DP network. The 4 digital inputs (via M12 sockets) are available for local sensors — think photoeyes for zone occupancy or jam detection on a conveyor — and the 2-byte input/output process image gives you enough data for start/stop, fault feedback, and a few status bits per starter. Mounting is by screw fixing, and the starter can be installed vertically or horizontally. At 230 mm high, 110 mm wide, and 160 mm deep, it's compact enough to mount directly on a machine frame or a sub-panel. The main energy infeed uses a socket per ISO 23570, so cabling is a standardized plug-in rather than hardwiring each starter individually — speeds up commissioning and replacement.","metaTitle":"Siemens 3RK1304-5LS70-2AA0 SIMATIC Motor Starter, 12A, IP65,","metaDescription":"Siemens SIMATIC motor starter 3RK1304-5LS70-2AA0, direct starter, 12A at 400V AC, IP65, PROFINET/PROFIBUS DP, adjustable trip class 5/10/20/30. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"160 mm","Width":"110 mm","at DC":"24 ... 24 V","Height":"230 mm","Trip Class":"CLASS 5, 10, 20 and 30 adjustable","Direct Start":"Yes","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":"No","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":"5.4 W","protection class IP":"IP65","PROFIBUS DP protocol":"Yes","Vibration Resistance":"2g","at 400 V rated value":"100 000 A","Design Of The Product":"direct starter","For Main Energy Infeed":"socket according to ISO23570","Without Bypass Circuit":"1.944 W","supply voltage 1 at DC":"24 ... 24 V","Number Of Digital Inputs":"4","For Digital Input Signals":"4","For Digital Output Signals":"0","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","For Main Energy Transmission":"socket according to ISO23570","For Supply Voltage Line-Side":"via backplane bus","Type Of The Motor Protection":"full motor protection","at AC-3 at 400 V rated value":"5 500 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":"Yes","Insulation Voltage Rated Value":"400 V","Design Of The Switching Contact":"solid-state / thyristor / 2 phases","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":"480 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":"1.5 ... 12 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$496.57","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=40839&mlfb=3RK1304-5LS70-2AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1304-5LS70-2AA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings I need to check for fit?","answer":"Rated current is 12 A at 400 V AC, with an adjustable trip class of 5, 10, 20, or 30. Short-circuit breaking capacity is 100,000 A at 400 V. Supply voltage is 24 V DC (20.4 to 28.8 V range). The enclosure is IP65, and communication is PROFINET and PROFIBUS DP."},{"question":"Does it support PROFINET?","answer":"Yes, PROFINET protocol is supported, along with PROFIBUS DP."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1304-5LS70-2AA0","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/3RK1304-5LS70-2AA0 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}}