{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1300-0KS01-1AA1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1300-0KS01-1AA1","canonicalUrl":"https://aoctrl.com/siemens/3RK1300-0KS01-1AA1","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1300-0KS01-1AA1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RK1300-0KS01-1AA1, electromechanical reversing starter, 0.37 kW AC-3 at 400 V, setting range 0.9-1.25 A, IP65, PROFIBUS DP, with motor brake output.","salesMarkdown":"The Siemens 3RK1300-0KS01-1AA1 is an electromechanical reversing starter from the SIRIUS series, designed for motor control in distributed automation environments. It integrates a reversing contactor, motor protection via a bimetal overload relay, and a PROFIBUS DP communication interface into a single IP65-rated enclosure — meaning it can be mounted directly on the machine or in a field junction box without a separate control cabinet. The 0.37 kW rating at AC-3 duty (400 V) covers small three-phase motors typical of conveyor drives, valve actuators, or pump stations. The setting range of 0.9 to 1.25 A on the bimetal relay matches the full-load current of a 0.37 kW motor at 400 V, so the overload protection is factory-scaled to the motor size. The AC-3 rating of 0.37 kW at 400 V is the motor-switching capability under starting and stopping conditions (inrush up to 8× FLC). The operating voltage range of 400 to 500 V AC covers standard European 400 V three-phase networks and 480 V North American systems. ## Communication and brake control PROFIBUS DP onboard allows the starter to be addressed directly from a PLC or DCS, eliminating the need for a separate remote I/O module for start/stop and direction commands. The integrated motor brake output supplies DC 24 V / 3 A for an externally supplied brake — common on vertical-axis drives or holding-brake motors. This means the brake is controlled synchronously with the motor contactor, so the brake releases before the motor starts and engages after it stops, without a separate timing relay.","metaTitle":"Siemens 3RK1300-0KS01-1AA1 Reversing Starter, 0.37 kW, IP65","metaDescription":"Siemens 3RK1300-0KS01-1AA1 reversing starter, 0.37 kW AC-3 at 400 V, 0.9-1.25 A setting range, IP65, PROFIBUS DP, with brake contact. Active production, sourced to order.","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":"0.37kW","Minimum":"0.37kW","Initial Value":"0.9A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"1.25A","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":"0.37kW","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=265891&mlfb=3RK1300-0KS01-1AA1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1300-0KS01-1AA1/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RK1300-0KS01-1AA1 used for?","answer":"It is an electromechanical reversing starter for small three-phase motors up to 0.37 kW at 400 V AC-3, with integrated PROFIBUS DP communication and a brake output for externally supplied brakes."},{"question":"Where can I buy the 3RK1300-0KS01-1AA1?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1300-0KS01-1AA1","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/3RK1300-0KS01-1AA1 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}}