{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1300-0CS01-0AA4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1300-0CS01-0AA4","canonicalUrl":"https://aoctrl.com/siemens/3RK1300-0CS01-0AA4","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1300-0CS01-0AA4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS EM 300 DS electromechanical direct starter, 3RK1300-0CS01-0AA4, setting range 0.18-0.25A, AC-3 0.06kW/400V, IP65, PROFIBUS DP, with integrated brake contact.","salesMarkdown":"The 3RK1300-0CS01-0AA4 is a Siemens SIRIUS EM 300 DS electromechanical direct starter designed for the ET 200X distributed I/O system. It integrates motor starting, bimetal overload protection, and a brake output into one IP65-rated enclosure — no separate contactor/overload/brake relay stack needed on the line side. The setting range is 0.18...0.25 A, matching a 0.06 kW motor at 400 V AC-3 duty, so it's sized for small three-phase motors driving conveyors, fans, or pumps in a distributed architecture. At AC-3 (squirrel-cage motor starting) the unit is rated 0.06 kW at 400 V. That's the motor power it can switch under load — not a resistive-heater rating. The 0.18...0.25 A setting range is the overload relay's adjustable full-load current window; you set it to the motor nameplate FLA. ## Integrated brake output — what it handles This variant includes a motor brake output rated DC 500 V / 1 A. It's designed for internally supplied DC brakes — the kind that release when power is applied and engage on de-energization. The 9-pole motor feeder and 9-pole power connection handle both motor power and brake wiring through a single connector, which saves a cable run on the machine. The brake contact is electromechanical, not solid-state, so it's a dry-contact switch; verify the brake coil inrush doesn't exceed 1 A at the DC bus voltage you're using. ## Communication and control integration The unit communicates via PROFIBUS DP — it's a bus node in the ET 200X family, not a standalone starter. That means it receives start/stop commands and returns status (overload trip, brake feedback) over the fieldbus. No AS-Interface support on this variant. The operating voltage range is 400...500 V AC, so it runs directly off a standard 400 V three-phase line without a step-down transformer. Operating temperature is 0...55 °C; the IP65 seal holds up to washdown but doesn't help with condensation — if the enclosure sees thermal cycling in a humid environment, a breather drain may be needed.","metaTitle":"Siemens 3RK1300-0CS01-0AA4 EM 300 DS Direct Starter, 0.18-0.","metaDescription":"Siemens 3RK1300-0CS01-0AA4 EM 300 DS electromechanical direct starter for ET 200X, setting range 0.18-0.25A, 0.06kW/400V AC-3, IP65, PROFIBUS DP, with brake contact. Sourced to ord","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":"0.06kW","Minimum":"0.06kW","Initial Value":"0.18A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"0.25A","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":"0.06kW","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=284245&mlfb=3RK1300-0CS01-0AA4","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1300-0CS01-0AA4/alternatives.json"},"ai":{"faq":[{"question":"What is the setting range of 3RK1300-0CS01-0AA4?","answer":"The overload setting range is 0.18...0.25 A, set via the bimetal relay adjustment. That corresponds to a 0.06 kW motor at 400 V AC-3."},{"question":"Does 3RK1300-0CS01-0AA4 include a brake output?","answer":"Yes, it includes a motor brake output rated DC 500 V / 1 A for internally supplied DC brakes, with the brake contact integrated into the 9-pole motor feeder."},{"question":"What is the IP rating and where can this starter be mounted?","answer":"IP65, so the enclosure withstands hose-directed water and dust ingress. It's designed for the ET 200X distributed system and can be mounted directly on the machine frame or in a wet-area panel without an additional enclosure."},{"question":"What communication protocol does this unit support?","answer":"PROFIBUS DP. It operates as a bus node on the ET 200X network, not as a standalone starter. No AS-Interface support on this variant."},{"question":"Where can I buy 3RK1300-0CS01-0AA4?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1300-0CS01-0AA4","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/3RK1300-0CS01-0AA4 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}}