{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1300-1KS01-1AA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1300-1KS01-1AA1","canonicalUrl":"https://aoctrl.com/siemens/3RK1300-1KS01-1AA1","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1KS01-1AA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS EM 300 RS reversing starter, 3RK1300-1KS01-1AA1, electromechanical, setting range 9-12A, AC-3 5.5kW/400V, IP65, PROFIBUS DP, with integrated brake contact and motor feeder.","salesMarkdown":"The Siemens 3RK1300-1KS01-1AA1 is an electromechanical reversing starter from the SIRIUS EM 300 RS family, designed for the ET 200X distributed I/O system. The bimetal motor protection covers a setting range of 9 to 12 A, and the unit is rated for 5.5 kW at 400 V in AC-3 duty (the standard motor-switching category per IEC 60947-4-1), so it handles reversing and braking of three-phase induction motors up to that power. The 9 to 12 A overload setting range means the bimetal relay is field-adjustable to match the motor full-load current within that window; if your motor draws 10.5 A FLA, you set the dial to 10.5 A, and the relay tracks the thermal load. The operating voltage of 400 to 500 V AC covers standard European 400 V three-phase networks and 480 V North American systems. ## PROFIBUS DP and integrated brake output This starter communicates over PROFIBUS DP, so it plugs into a PROFIBUS segment as a slave device — the PLC sends direction and start/stop commands over the bus, and the starter reports back status and overload trips. The integrated motor brake output (DC 24 V / 3 A) is intended for externally supplied holding brakes on vertical-axis motors or conveyors; the brake contact is wired through the 9-pole motor feeder cable, which also carries the motor power and feedback signals. The 9-pole power connection mates with the ET 200X backplane or a pre-wired distribution block, reducing field wiring to a single cable run per starter. The ambient operating range is 0 to 55 °C, which covers most industrial floor conditions but not freezer or high-temp foundry environments.","metaTitle":"Siemens 3RK1300-1KS01-1AA1 Reversing Starter, 9-12A, 5.5kW/4","metaDescription":"Siemens SIRIUS 3RK1300-1KS01-1AA1 electromechanical reversing starter, setting range 9-12A, 5.5kW at 400V AC-3, IP65, PROFIBUS DP, integrated brake output. Current lifecycle stage.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"134mm","Width":"140mm","Height":"270mm","Maximum":"5.5kW","Minimum":"5.5kW","Initial Value":"9A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"12A","Protection class IP":"IP65","PROFIBUS DP protocol":"Yes","AS-interface protocol":"No","Design of the product":"reversing starter","Type of the motor protection":"bimetal","at AC-3 at 400 V rated value":"5.5kW","Operating voltage rated value":"400 ... 500V","Design of the switching contact":"electromechanical","Design of short-circuit protection":"circuit-breakers","Product function Bus communication":"Yes","Ambient temperature during operation":"0 ... 55°C","Product component Motor brake output":"Yes","Equipment marking acc. to DIN EN 61346-2":"Q","Type of electrical connection for main current circuit":"tab terminals","Maximum short-circuit current breaking capacity (Icu) at 400 V rated value":"50A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=465305&mlfb=3RK1300-1KS01-1AA1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1KS01-1AA1/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RK1300-1KS01-1AA1?","answer":"There is no direct second-source; the 3RK1300-1KS01-1AA1 is a Siemens-specific reversing starter with integrated PROFIBUS DP and brake output. The 3RT5065-6AB36 is a standard SIRIUS power contactor (not a reversing starter) with a different form factor, no bimetal overload, and no bus interface — it cannot drop into the same panel without rewiring and adding separate components."},{"question":"What compliance documentation is available for 3RK1300-1KS01-1AA1?","answer":"The part carries equipment marking per DIN EN 61346-2 (function code Q). Standard Siemens SIRIUS documentation includes a CE declaration of conformity, UL/CSA file, and RoHS/REACH substance compliance declarations. Specific certificate numbers are available on request at quote time."},{"question":"Where can I buy 3RK1300-1KS01-1AA1 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1300-1KS01-1AA1","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/3RK1300-1KS01-1AA1 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}}