{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1300-1FS01-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1300-1FS01-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1300-1FS01-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1FS01-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS EM 300 DS direct starter, 3RK1300-1FS01-0AA3, electromechanical, setting range 3.5...5.0A, AC-3 1.9kW/400V, IP65, PROFIBUS DP, with brake contact.","salesMarkdown":"The Siemens 3RK1300-1FS01-0AA3 is an EM 300 DS electromechanical direct starter from the SIRIUS family, designed for the ET 200X distributed I/O system. It integrates a motor-protective function via a bimetal overload relay, a contactor, and a PROFIBUS DP communication interface into one IP65-rated enclosure — a self-contained motor feeder for decentralized automation architectures. The setting range spans 3.5 A to 5.0 A, matching the full-scale current of the bimetal element. That 1.9 kW / 3.5–5.0 A band covers common small conveyor, pump, and fan motors in the 2–3 hp range at 400 V. ## Where it fits — panel and field deployment That means the entire starter assembly — contactor, overload, PROFIBUS electronics, and brake contact — lives in a field-mounted enclosure that handles washdown environments. No separate control cabinet needed for this motor branch; it mounts directly on the machine frame or a mounting plate near the motor. Main current circuit connections use tab terminals, typical for the ET 200X system's plug-in motor feeder cables. The 9-pole motor feeder and 9-pole power connection are built into the housing, so field wiring reduces to the PROFIBUS drop and the motor cable. ## Motor brake output and short-circuit protection A key differentiator on this variant is the integrated motor brake output — it includes a brake contact for internally supplied brakes, AC 400 V. That saves an external brake rectifier or contactor for motors with spring-applied brakes, common on vertical-axis loads or conveyors that need a holding brake. The short-circuit protection is designed to work with circuit-breakers (not fuses), and the maximum short-circuit breaking capacity (Icu) at 400 V is 50 A.","metaTitle":"Siemens 3RK1300-1FS01-0AA3 EM 300 DS Direct Starter, 3.5-5.0","metaDescription":"Siemens 3RK1300-1FS01-0AA3 EM 300 DS direct starter, setting range 3.5-5.0A, AC-3 1.9kW/400V, IP65, PROFIBUS DP, with brake contact. Sourced to order against RFQ.","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":"1.9kW","Minimum":"1.9kW","Initial Value":"3.5A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"5A","Protection class IP":"IP65","PROFIBUS DP protocol":"Yes","AS-interface protocol":"No","Design of the product":"direct starter","Type of the motor protection":"bimetal","at AC-3 at 400 V rated value":"1.9kW","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=75962&mlfb=3RK1300-1FS01-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1FS01-0AA3/alternatives.json"},"ai":{"faq":[{"question":"Who supplies 3RK1300-1FS01-0AA3 and how is it quoted for volume purchases?","answer":"Siemens is the manufacturer. The part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time."},{"question":"What is 3RK1300-1FS01-0AA3's listed depth?","answer":"The listed depth is 134 mm."},{"question":"What is 3RK1300-1FS01-0AA3's listed width?","answer":"The listed width is 140 mm."},{"question":"Will 3RK1300-1FS01-0AA3 drop into a panel specified around 3RT5065-6AB36 without rewiring?","answer":"No, these are different form factors and system architectures. The 3RT5065-6AB36 is a SIRIUS power contactor in an S10 frame (202 mm deep, 145 mm wide, screw-fixed) for conventional control panels, while the 3RK1300-1FS01-0AA3 is a direct starter in an ET 200X distributed enclosure (134 mm deep, 140 mm wide) with tab terminals and integrated PROFIBUS. They are not footprint-compatible."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1300-1FS01-0AA3","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/3RK1300-1FS01-0AA3 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}}