{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1322-0KS02-1AA4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1322-0KS02-1AA4","canonicalUrl":"https://aoctrl.com/siemens/3RK1322-0KS02-1AA4","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1322-0KS02-1AA4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS AS-interface reversing starter, electromechanical, 0.37 kW at AC-3/400 V, setting range 0.9…1.25 A, IP65, with integrated brake contact and 9-pole motor outgoing feeder.","salesMarkdown":"## AS-i reversing starter for distributed motor control The Siemens 3RK1322-0KS02-1AA4 is a SIRIUS AS-interface compact reversing starter — an electromechanical motor starter with integrated reversing contactors, bimetal overload protection, and AS-i bus communication, all in one IP65 enclosure rated for 0.37 kW at AC-3 duty on a 400 V supply. The setting range of 0.9 to 1.25 A means the bimetal overload relay is factory-matched to a narrow motor current window; you set the full-scale value to match the motor nameplate FLA within that band. IP65 protection lets this unit mount directly on a machine frame or conveyor section in washdown areas — no separate control cabinet needed for the motor branch. The 0.37 kW rating at AC-3 (400 V) defines the maximum three-phase induction motor this starter can switch under normal starting and running — a standard 0.37 kW (0.5 hp) motor at 400 V draws roughly 0.9–1.2 A, which sits inside the 0.9…1.25 A setting range. The integrated motor brake output (500 V DC / 1 A per the description) controls a DC injection brake directly, saving an external brake contactor and simplifying the wiring harness for reversing applications that need rapid stopping. ## AS-interface bus integration AS-interface protocol (AS-i) is the fieldbus here — not PROFIBUS DP — so this starter communicates over a two-wire AS-i cable that carries both power and data to the reversing contactor coils and the two integrated inputs. Bus communication is enabled as a product function, so the starter reports status and accepts start/reverse/stop commands over the AS-i network without a separate I/O block.","metaTitle":"Siemens 3RK1322-0KS02-1AA4 AS-i Reversing Starter, 0.37 kW,","metaDescription":"Siemens SIRIUS 3RK1322-0KS02-1AA4 AS-interface reversing starter, 0.37 kW at AC-3/400 V, setting range 0.9–1.25 A, IP65, with integrated brake contact. Current lifecycle. Sourced t","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":"reversing 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=110132&mlfb=3RK1322-0KS02-1AA4","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1322-0KS02-1AA4/alternatives.json"},"ai":{"faq":[{"question":"What is the IP rating and where can this starter be mounted?","answer":"IP65 protection allows direct machine-mounting in washdown or dusty environments without a separate control cabinet."},{"question":"Does this starter include a brake output?","answer":"Yes, it has an integrated motor brake output rated for 500 V DC / 1 A, eliminating the need for an external brake contactor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1322-0KS02-1AA4","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/3RK1322-0KS02-1AA4 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}}