{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1322-0KS02-0AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1322-0KS02-0AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1322-0KS02-0AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1322-0KS02-0AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS AS-i compact direct starter, electromechanical DOL, setting range 0.9–1.25 A, AC-3 0.37 kW at 400 V, IP65, with brake contact and 2 integrated inputs.","salesMarkdown":"The Siemens 3RK1322-0KS02-0AA3 is an AS-interface compact direct starter — a self-contained motor starting and protection unit that integrates the contactor, bimetal overload relay, short-circuit protection via circuit-breakers, and bus communication into a single IP65 enclosure. It is designed for distributed motor control in washdown or dusty environments where a central panel is impractical, and it communicates directly on the AS-interface bus (no PROFIBUS DP). The setting range of 0.9 to 1.25 A covers small three-phase motors up to 0.37 kW at 400 V AC-3 duty — typical for compact conveyors, agitators, or small pumps in food-and-beverage or material-handling lines. The IP65 rating means the entire unit, including the bus connection and motor outgoing feeder, withstands hose-down cleaning without a separate panel enclosure. The AC-3 rated power of 0.37 kW at 400 V is the motor-switching capacity under typical starting conditions (up to 8× inrush). That is a firm ceiling — the bimetal overload is set between 0.9 and 1.25 A, so the motor full-load current must fall within that window. The unit includes a motor brake output (400 V AC) for motors with holding brakes — common on vertical-axis conveyors or gantries where the load must not drift on power loss. Two integrated inputs allow connection of local pushbuttons or sensors directly at the starter, reducing field wiring back to a PLC. The 9-pole motor outgoing feeder and 9-pole power connection are pre-wired at the factory — verify the pinout matches your motor cable assembly before installation. ## Deployment context: distributed motor control in harsh environments Because the starter is IP65 and communicates over AS-interface, it mounts directly on the machine frame or near the motor — no need for a local control cabinet. The 190 mm depth and 120 mm width are the envelope for the sealed housing; plan for clearance around the 9-pole connectors and cable bend radius.","metaTitle":"Siemens 3RK1322-0KS02-0AA3 AS-i Compact Starter, 0.37 kW, IP","metaDescription":"Siemens SIRIUS 3RK1322-0KS02-0AA3 AS-i compact direct starter, 0.9–1.25 A, 0.37 kW AC-3 at 400 V, IP65, with brake contact and 2 integrated inputs. Current lifecycle status. Source","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"190 mm","Width":"120 mm","Height":"270 mm","Maximum":"0.37 kW","Minimum":"0.37 kW","Initial Value":"0.9 A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"1.25 A","Type of assignment":"2","Protection class IP":"IP65","PROFIBUS DP protocol":"No","AS-interface protocol":"Yes","Design of the product":"direct starter","Type of the motor protection":"bimetal","Design of the switching contact":"electromechanical","Design of short-circuit protection":"circuit-breakers","Product function Bus communication":"Yes","Ambient temperature during operation":"-25 ... +55 °C","Product component Motor brake output":"Yes","Equipment marking acc. to DIN EN 61346-2":"Q","Operating power at AC-3 at 400 V rated value":"0.37 kW","Type of electrical connection for main current circuit":"tab terminals","Maximum short-circuit current breaking capacity (Icu) at 400 V rated value":"50 000 A"}},"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=145742&mlfb=3RK1322-0KS02-0AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1322-0KS02-0AA3/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this AS-i compact starter?","answer":"The setting range is 0.9 to 1.25 A, AC-3 rated power is 0.37 kW at 400 V, short-circuit breaking capacity is 50 kA at 400 V, and the enclosure is IP65. It includes a motor brake output and two integrated inputs."},{"question":"What is the physical size of this starter?","answer":"The dimensions are 190 mm depth, 120 mm width, and 270 mm height."},{"question":"What type of motor protection does it use?","answer":"It uses bimetal overload protection with a setting range of 0.9 to 1.25 A, and short-circuit protection is provided by circuit-breakers."},{"question":"Does it support AS-interface communication?","answer":"Yes, it supports AS-interface protocol and has bus communication capability. It does not support PROFIBUS DP."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1322-0KS02-0AA3","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/3RK1322-0KS02-0AA3 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}}