{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1300-1ES01-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1300-1ES01-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1300-1ES01-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1ES01-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS EM 300 DS direct starter, 3RK1300-1ES01-0AA3, electromechanical, setting range 2.8-4.0A, AC-3 1.5kW/400V, with brake contact, IP65, PROFIBUS DP.","salesMarkdown":"## What this direct starter does on an ET 200X node The Siemens 3RK1300-1ES01-0AA3 is an EM 300 DS electromechanical direct starter designed for the ET 200X distributed I/O system — it's a motor start-and-protect block that sits out on the machine, not back in a central cabinet. Rated for 1.5 kW at AC-3 duty on a 400 V supply, it covers small three-phase motors — pumps, conveyors, spindle drives — with a setting range of 2.8 to 4.0 A via its bimetal overload relay. The IP65 enclosure means it handles washdown zones and dusty environments without an extra box; you can mount it directly on the machine frame. The 1.5 kW rating at AC-3 (400 V) is the motor-switching figure that matters — it tells you the starter can handle the inrush of a standard induction motor up to that load. The 2.8–4.0 A setting range on the bimetal relay lets you dial in the exact full-load current of the motor, so you protect against overload without nuisance tripping. Operating voltage range is 400 to 500 V AC, so it works on 400 V and 480 V line supplies common in European and North American industrial plants. ## Built-in brake output and bus communication This variant includes a motor brake output — a contact that switches an externally supplied brake (typically 400 V AC) for holding loads on vertical axes or conveyors. That saves an external brake rectifier or contactor. The unit communicates over PROFIBUS DP, so it reports status and accepts start/stop commands directly from the PLC without hardwired control wires. The 9-pole motor feeder and 9-pole power connection mate with the ET 200X system cabling — tab terminals for the main circuit, with the bus connection handled through the backplane. ## Panel and field integration notes Physical footprint: 134 mm deep, 140 mm wide, 270 mm tall. The IP65 rating means the housing is sealed — no DIN-rail mounting inside a cabinet; it bolts directly to a machine frame or mounting plate. Ambient operating range is 0 to 55 °C, so it's fine for most production-floor environments but not for freezers or ovens. The electromechanical design uses a solenoid coil to pull in the main contacts — it's a proven, field-serviceable architecture; if the coil fails, you swap the entire starter block rather than try to rewind it in the field.","metaTitle":"Siemens 3RK1300-1ES01-0AA3 direct starter, 2.8-4A, 1.5kW","metaDescription":"Siemens 3RK1300-1ES01-0AA3 EM 300 DS direct starter for ET 200X. 2.8-4A setting range, 1.5kW at AC-3 400V, IP65, PROFIBUS DP. Current lifecycle stage. Available 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":"1.5kW","Minimum":"1.5kW","Initial Value":"2.8A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"4A","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":"1.5kW","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=175478&mlfb=3RK1300-1ES01-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1300-1ES01-0AA3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RK1300-1ES01-0AA3?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."},{"question":"What is 3RK1300-1ES01-0AA3 used for?","answer":"It's an electromechanical direct starter for the Siemens ET 200X distributed I/O system, rated 1.5 kW at AC-3 400 V. It starts and protects small three-phase motors — pumps, conveyors, fans — with integrated bimetal overload protection and PROFIBUS DP communication."},{"question":"Does 3RK1300-1ES01-0AA3 include a brake output?","answer":"Yes, it has a built-in motor brake output for externally supplied brakes, typically 400 V AC. This eliminates the need for a separate brake rectifier or contactor in the panel."},{"question":"What is the IP rating of 3RK1300-1ES01-0AA3?","answer":"IP65 — the housing is dust-tight and protected against low-pressure water jets. It can be mounted directly on the machine in washdown or dusty areas without an additional enclosure."},{"question":"Will 3RK1300-1ES01-0AA3 drop into a panel specified for 3RT5065-6AB36?","answer":"No — these are different form factors. The 3RK1300 is a direct starter for the ET 200X system (134×140×270 mm, IP65, tab terminals), while the 3RT5065 is a panel-mount power contactor (202×145×210 mm, screw terminals, IP00). They are not footprint-compatible without rewiring and enclosure changes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1300-1ES01-0AA3","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/3RK1300-1ES01-0AA3 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}}