{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1304-5LS70-2AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1304-5LS70-2AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1304-5LS70-2AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1304-5LS70-2AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC motor starter, direct starter design, 12 A at 400 V AC, adjustable trip class 5/10/20/30, IP65, PROFINET, 100 kA SCCR.","salesMarkdown":"## What this motor starter delivers Its adjustable trip class — selectable between CLASS 5, 10, 20, and 30 — lets you match the thermal overload curve to the motor's starting profile: fast tripping for short acceleration times, slower for high-inertia loads like fans or centrifuges. It runs on a 24 V DC control supply (20.4 to 28.8 V range) and supports both PROFINET and PROFIBUS DP protocols, so it drops into a Siemens automation network without a separate gateway. Mounting is by screw fixing, and the unit can be installed vertically or horizontally. The main energy infeed uses a socket per ISO 23570, which simplifies pre-wired harness integration. It provides 4 digital inputs via M12 sockets and 2 bytes of input/output data to the controller — enough for feedback and basic interlocks without a separate I/O block.","metaTitle":"Siemens 3RK1304-5LS70-2AA3 SIMATIC Motor Starter, 12 A, IP65","metaDescription":"Siemens 3RK1304-5LS70-2AA3 SIMATIC motor starter, 12 A at 400 V AC, adjustable trip class 5/10/20/30, IP65, PROFINET, 100 kA SCCR. Current lifecycle stage. 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","title":"3RK1304-5LS70-2AA3","Height":"230 mm","Trip Class":"CLASS 5, 10, 20 and 30 adjustable","description":"ET 200pro EDSE/DSSE HF electronic DOL starter electronic (soft-) switching Full motor protection consisting of: electronic Overload protection + thermistor AC-3, 5.5 kW / 400 V 1.5 A...(9 A)12 A Brake contact 400 V AC 4 DI Han Q4/2 - Han Q8/0","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":"Yes","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":"12 A","For Load-Side Outgoing Feeder":"socket according to ISO23570","Operating Voltage Rated Value":"200 ... 400 V","Substance Prohibitance (Date)":"01.05.2012","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 %","reference code acc. to IEC 81346-2":"Q","Product Component Motor Brake Output":"Yes","Surge Voltage Resistance Rated Value":"6 kV","supports PROFIenergy measured values":"Yes","Type Of Voltage Of The Supply Voltage":"DC","with low demand rate acc. to SN 31920":"100 FIT","with high demand rate acc. to SN 31920":"75 %","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","Supply Voltage For Brake Control Required":"400 V","Touch Protection Against Electrical Shock":"finger-safe","design of the interface PROFINET protocol":"Yes","protocol is supported AS-Interface protocol":"No","operating power at AC-3 at 400 V rated value":"5 500 W","At The Manufacturer-Specific Device Interface":"optical interface","Type Of Voltage Of The Control Supply Voltage":"DC","B10 value with high demand rate acc. to SN 31920":"1 000 000","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 voltage at AC at 60 Hz acc. to CSA and UL rated value":"480 V","Type Of Voltage Of The Supply Voltage For Brake Control Required":"AC","operating range relative to the operating voltage at AC at 50 Hz":"200 ... 440 V","Mechanical Service Life (Switching 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f75f36d1c6009654e1ad2209b9ae3aa1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=445279&mlfb=3RK1304-5LS70-2AA3"},"ai":{"faq":[{"question":"What are the key ratings for this motor starter?","answer":"Rated 12 A at 400 V AC for motor starting, with an adjustable trip class of 5, 10, 20, or 30. The unit has a 100 kA SCCR at 400 V and operates on a 24 V DC control supply (20.4–28.8 V)."},{"question":"What communication protocols does it support?","answer":"It supports both PROFINET and PROFIBUS DP, allowing direct connection to Siemens automation networks without additional interface modules."},{"question":"What is the enclosure protection rating?","answer":"IP65, meaning it is dust-tight and protected against water jets — suitable for mounting in washdown or dusty environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1304-5LS70-2AA3","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/3RK1304-5LS70-2AA3 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}}