{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1300-1CS01-0AA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1300-1CS01-0AA1","canonicalUrl":"https://aoctrl.com/siemens/3RK1300-1CS01-0AA1","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1CS01-0AA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS EM 300 DS direct starter, 3RK1300-1CS01-0AA1, electromechanical, setting range 1.8-2.5A, AC-3 0.9kW/400V, IP65, with PROFIBUS DP and brake contact.","salesMarkdown":"The Siemens 3RK1300-1CS01-0AA1 is an EM 300 DS electromechanical direct starter designed for the ET 200X distributed I/O system. It integrates motor starting, bimetal overload protection, and PROFIBUS DP communication into a single IP65-rated enclosure, eliminating the need for a separate control cabinet in washdown or dusty environments. The setting range of 1.8 to 2.5 A matches the motor full-load current, and the bimetal overload relay provides Class 10 or 20 thermal protection — the same curve used in conventional SIRIUS contactor-overload combinations. ## PROFIBUS DP and brake control Built-in PROFIBUS DP protocol allows the starter to be addressed directly from the fieldbus network — start, stop, and overload reset commands travel over the bus, and diagnostic data (thermal state, trip status) returns without additional I/O wiring. This makes the part a drop-in motor actuator for a distributed control architecture, not just a standalone starter. The integrated motor brake output (DC 24 V / 3 A) supplies an externally mounted holding brake, typically used on vertical-axis conveyors or gantry drives. The contact is rated for inductive DC loads; verify free-wheel diode polarity on the brake coil before commissioning. ## Short-circuit coordination and selectivity For Type 1 or Type 2 coordination, the manufacturer specifies circuit-breakers as the short-circuit protection device — not fuses — so the panel design should account for that when sizing the feeder.","metaTitle":"Siemens 3RK1300-1CS01-0AA1 EM 300 DS Direct Starter, 1.8-2.5","metaDescription":"Siemens 3RK1300-1CS01-0AA1 EM 300 DS electromechanical direct starter for ET 200X. Setting range 1.8-2.5A, AC-3 0.9kW/400V, IP65, PROFIBUS DP, brake contact. Current lifecycle stag","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":"0.9kW","Minimum":"0.9kW","Initial Value":"1.8A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"2.5A","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":"0.9kW","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=57097&mlfb=3RK1300-1CS01-0AA1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1CS01-0AA1/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of the 3RK1300-1CS01-0AA1?","answer":"It is an electromechanical direct starter with a setting range of 1.8 to 2.5 A, rated for AC-3 duty at 0.9 kW / 400 V. The short-circuit breaking capacity (Icu) at 400 V is 50 A. Enclosure rating is IP65."},{"question":"Does the 3RK1300-1CS01-0AA1 include a brake output?","answer":"Yes, it includes a motor brake output rated for DC 24 V / 3 A, intended for externally supplied holding brakes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1300-1CS01-0AA1","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/3RK1300-1CS01-0AA1 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}}