{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1322-0AS12-1AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1322-0AS12-1AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1322-0AS12-1AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1322-0AS12-1AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens AS-Interface compact reversing starter, 3RK1322-0AS12-1AA3, solid-state motor protection, setting range 0.6-2.18 A, AC-3 0.8 kW at 400 V, IP65, with integrated brake contact and two inputs.","salesMarkdown":"The Siemens 3RK1322-0AS12-1AA3 is an AS-Interface compact reversing starter in an IP65-rated enclosure, designed for distributed motor control right at the machine — no separate control cabinet needed for the motor branch. It uses solid-state motor protection and solid-state switching contacts, so there are no moving parts to wear in the power path. The setting range covers 0.6 A to 2.18 A, which translates to a motor power range of 0.18 kW to 0.8 kW at AC-3 duty on a 400 V supply. That AC-3 rating means it handles starting and stopping of squirrel-cage induction motors under load — the typical conveyor, pump, or fan application. The IP65 rating means the housing is dust-tight and protected against water jets from any direction. This starter mounts directly on the machine frame or a bracket in washdown zones — food processing, packaging lines, or any area where hose-down cleaning is routine. The enclosure carries the motor protection logic and the reversing contactors in one package, so you save a DIN-rail row in the panel. ## AS-Interface integration and brake control This starter communicates via AS-Interface protocol, not PROFIBUS DP. That means it connects to the AS-i yellow cable with a single two-wire drop — no shielded multi-core back to the PLC cabinet. The part includes bus communication capability and two integrated inputs, so you can wire limit switches or pushbuttons directly into the starter without a separate I/O block. It also has a motor brake output for internally supplied brakes at 400 V AC, which is common for holding brakes on vertical-axis motors or conveyors that must lock when power is removed. The main circuit connects via tab terminals — a standard fast-on connection that mates with the AS-i power tap or a pre-wired harness. The 9-pole power connection handles the motor leads, brake wiring, and the AS-i bus in one plug. For a commissioning engineer, the key check is that the AS-i master is configured for a slave with two inputs and one output (the reversing contactor command). ## Short-circuit protection and breaking capacity Short-circuit protection is by external fuse — the starter itself does not contain a magnetic or thermal-magnetic breaker. The maximum short-circuit breaking capacity (Icu) at 400 V is rated at 100 kA. For a panel OEM or site engineer, this means the fuse selection is not arbitrary: the fuse must clear a 100 kA prospective fault current while limiting the let-through energy to what the solid-state output can withstand.","metaTitle":"Siemens 3RK1322-0AS12-1AA3 AS-i reversing starter, 0.6-2.18","metaDescription":"Siemens 3RK1322-0AS12-1AA3 AS-Interface compact reversing starter, solid-state motor protection, 0.6-2.18 A setting range, 0.8 kW at AC-3 400 V, IP65, with brake contact. Current p","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":"0.8 kW","Minimum":"0.18 kW","Initial Value":"0.6 A","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"2.18 A","Type of assignment":"1","Protection class IP":"IP65","PROFIBUS DP protocol":"No","AS-interface protocol":"Yes","Design of the product":"reversing starter","Type of the motor protection":"solid-state","Design of the switching contact":"solid-state","Design of short-circuit protection":"fuse","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":"0.8 kW","Type of electrical connection for main current circuit":"tab terminals","Maximum short-circuit current breaking capacity (Icu) at 400 V rated value":"100 000 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=371525&mlfb=3RK1322-0AS12-1AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1322-0AS12-1AA3/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this reversing starter?","answer":"The setting range is 0.6 A to 2.18 A, corresponding to a motor power range of 0.18 kW to 0.8 kW at AC-3 duty on a 400 V supply. The enclosure is IP65, and the short-circuit breaking capacity (Icu) at 400 V is 100 kA with external fuses."},{"question":"Does this starter communicate via PROFIBUS DP?","answer":"No, it uses AS-Interface protocol. PROFIBUS DP is not supported on this variant."},{"question":"What is the physical size of the 3RK1322-0AS12-1AA3?","answer":"The dimensions are 270 mm height, 120 mm width, and 190 mm depth."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1322-0AS12-1AA3","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/3RK1322-0AS12-1AA3 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}}