{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1301-0KB00-1AA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1301-0KB00-1AA2","canonicalUrl":"https://aoctrl.com/siemens/3RK1301-0KB00-1AA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1301-0KB00-1AA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC 3RK1301-0KB00-1AA2, reversing motor starter, Class 10, 50 kA SCCR at 400 V, PROFINET/PROFIBUS, 24 V DC, pluggable on terminal module.","salesMarkdown":"## What this reversing starter does — and what it doesn't The 3RK1301-0KB00-1AA2 is a SIMATIC reversing motor starter — a single unit that handles forward and reverse direction control for a motor load, with integrated overload protection rated Class 10. It is not a direct-start device; the reversing function is built in, so the BOM line replaces what would otherwise be two contactors, a mechanical interlock, and a separate overload relay. ## Fieldbus and I/O — what the control module brings This starter supports both PROFINET and PROFIBUS DP protocols, so it drops into either a SIMATIC S7-1500 PROFINET ring or a legacy PROFIBUS DP segment without a gateway. The I/O mapping is 1 byte of inputs and 1 byte of outputs — enough for basic status and control signals (run forward, run reverse, fault reset, overload trip). Digital I/O are not on the base unit; they are added via a separate control module that plugs into the starter's top interface. The starter mounts by plugging onto a terminal module — no DIN-rail clips, no screws into the panel base. Dimensions are 265 mm high, 90 mm wide, 120 mm deep. The width is the critical panel-spacing number: at 90 mm, it occupies roughly five 18 mm-wide DIN-rail terminal positions. Mounting can be vertical or horizontal, which gives flexibility in shallow enclosures. The unit is rated for pollution degree 3 at 400 V and degree 2 at 500 V per IEC 60664 / IEC 61131 — meaning it tolerates conductive pollution (condensation, light dust) at 400 V but requires a cleaner environment at 500 V. Shock resistance is 5 g for 11 ms; vibration resistance is 2 g. Maximum switching frequency is 750 operations per hour. Power dissipation is 4.118 W without bypass, 4.1184 W with bypass — negligible for enclosure thermal calculations. ## Supply voltage and control logic The control supply is 24 V DC nominal, with a permissible range of 20.4 to 28.8 V DC. The unit does not include brake control for either 24 V DC or 180 V DC brakes — if the motor has a brake, it must be controlled externally. Reverse starting is supported; direct starting is not, which is consistent with the reversing-starter design.","metaTitle":"Siemens 3RK1301-0KB00-1AA2 SIMATIC Motor Starter, Reversing,","metaDescription":"Siemens 3RK1301-0KB00-1AA2 SIMATIC motor starter, reversing, Class 10, 50 kA SCCR, PROFINET/PROFIBUS, 24 V DC. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"120 mm","Width":"90 mm","at DC":"24 ... 24 V","title":"3RK1301-0KB00-1AA2","Height":"265 mm","Trip Class":"CLASS 10","description":"RS1-X for ET 200S Standard reversing starter expandable Setting range 0.9...1.25 A AC-3, 0.37 kW / 400 V Electromechanical starter for brake control module","Direct Start":"No","Of The Inputs":"1 byte","During Storage":"-40 ... +70 °C","Of The Outputs":"1 byte","lifecycle_stage":"current","During Operation":"0 ... 60 °C","During Transport":"-40 ... +70 °C","Fastening Method":"pluggable on terminal module","Reverse Starting":"Yes","Shock Resistance":"5g / 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":"2","Degree Of Pollution":"3 at 400 V, 2 at 500 V according to IEC60664 (IEC61131)","Maximum Permissible":"28.8 V","Minimum Permissible":"20.4 V","Product Designation":"Motor starters","With Bypass Circuit":"4.1184 W","PROFIBUS DP protocol":"Yes","Vibration Resistance":"2g","at 400 V rated value":"50 kA","Design Of The Product":"reversing starter","For Main Energy Infeed":"screw-type terminals","Without Bypass Circuit":"4.118 W","supply voltage 1 at DC":"24 ... 24 V","Number Of Digital Inputs":"0","For Digital Input Signals":"0","For Digital Output Signals":"0","brake control with 24 V DC":"No","1 For Digital Input Signals":"using control module","2 For Digital Input Signals":"using control module","Operating Frequency Maximum":"750 1/h","brake control with 180 V DC":"No","brake control with 230 V AC":"No","brake control with 500 V DC":"No","For Main Energy Transmission":"via energy bus","For Supply Voltage Line-Side":"via backplane bus","Type Of The Motor Protection":"bimetal","at AC-3 at 400 V rated value":"1.25 A","For Load-Side Outgoing Feeder":"Screw-type terminals","Operating Voltage Rated Value":"200 ... 400 V","Substance Prohibitance (Date)":"10/26/2016","supports PROFIenergy shutdown":"No","Digital Inputs Parameterizable":"No","For Communication Transmission":"via backplane bus","Insulation Voltage Rated Value":"500 V","Of The Communication Interface":"via backplane bus","Design Of The Switching Contact":"electromechanical","Digital Outputs Parameterizable":"No","For Supply Voltage Transmission":"via backplane bus","Operating Frequency 1 Rated Value":"50 Hz","Operating Frequency 2 Rated Value":"60 Hz","Design Of Short-Circuit Protection":"circuit-breakers","Product Function Bus Communication":"Yes","Product Function On-Site Operation":"Yes","Relative Humidity During Operation":"5 ... 95 %","Product Component Motor Brake Output":"Yes","Surge Voltage Resistance Rated Value":"6 kV","supports PROFIenergy measured values":"No","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 on voltage supply, inputs and outputs","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","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 %","operating power at AC-3 at 400 V rated value":"0.37 kW","At The Manufacturer-Specific Device Interface":"plug","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":"Yes","Relative Negative Tolerance Of The Operating Frequency":"10 %","Relative Positive Tolerance Of The Operating Frequency":"10 %","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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":"100 000","Maximum Permissible Voltage For Safe Isolation Between Main And Auxiliary Circuit":"400 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.9 ... 1.25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ef1c5bfdd09c463ef1a6eb2f66f2c10d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=61367&mlfb=3RK1301-0KB00-1AA2"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Height is 265 mm, width is 90 mm, depth is 120 mm. The 90 mm width is the critical spacing dimension for DIN-rail or backplate layout."},{"question":"What fieldbus protocols does this starter support?","answer":"It supports both PROFINET and PROFIBUS DP natively — no external gateway or communication module is needed."},{"question":"What is the short-circuit current rating?","answer":"The rated short-circuit current is 50 kA at 400 V, which is the SCCR figure used for panel coordination and UL/IEC compliance."},{"question":"Does this unit include digital I/O?","answer":"No digital I/O are on the base unit. Digital inputs (up to 2) are added via a plug-on control module that interfaces with the starter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1301-0KB00-1AA2","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/3RK1301-0KB00-1AA2 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}}