{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK4320-5DQ61-0BA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK4320-5DQ61-0BA2","canonicalUrl":"https://aoctrl.com/siemens/3RK4320-5DQ61-0BA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RK4320-5DQ61-0BA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor starter MCU for AS-Interface, 3RK4320-5DQ61-0BA2, direct starter, 1.25 A rated current at AC-3 400 V, CLASS 10, IP54, DC control.","salesMarkdown":"## AS-Interface motor starter MCU — 1.25 A, CLASS 10, solid-state It is a direct starter with solid-state switching and solid-state motor protection, rated for 1.25 A at AC-3 400 V. The unit operates on a 340…460 V power supply and a 20.4…26.4 V DC control supply, drawing power from the AS-Interface network. Two digital inputs are onboard for local start/stop or feedback, and the module includes a motor brake output component — useful for holding loads on vertical axes or conveyors. Enclosure rating is IP54, suitable for panel-mount installations in industrial environments where dust and splash protection is needed but washdown is not required. ## Dimensions and integration — 290 × 215 × 205 mm The 3RK4320-5DQ61-0BA2 measures 290 mm wide, 215 mm high, and 205 mm deep. This footprint fits a standard industrial enclosure; plan for adequate side clearance for AS-Interface cabling and heat dissipation from the solid-state output stage. Short-circuit protection is provided by upstream circuit breakers (the unit itself is not a breaker). The three-pole main current circuit handles three-phase motor loads. Operating frequency is rated up to 3,600 1/h at 50/60 Hz, so it handles frequent start-stop applications like small conveyors or indexing tables.","metaTitle":"Siemens 3RK4320-5DQ61-0BA2 SIRIUS Motor Starter, 1.25 A","metaDescription":"Siemens 3RK4320-5DQ61-0BA2 SIRIUS motor starter MCU. 1.25 A AC-3, CLASS 10, AS-Interface, IP54. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"205 mm","Width":"290 mm","title":"3RK4320-5DQ61-0BA2","Height":"215 mm","Trip Class":"CLASS 10","description":"SIRIUS MCU motor starter Enclosure degree of protection IP54 metal Communication AS-Interface Electronic switching Short-circuit protection with circuit breaker DOL starter Brake 230 V AC (internal) Performance class 1.25 A Motor protection electronic Overload relay with thermal motor model Manual operation without Connection power M screw connection Standard product","Type Of Voltage":"DC","lifecycle_stage":"current","Bus Communication":"Yes","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","PROFINET protocol":"No","Product Brand Name":"SIRIUS","Type Of Assignment":"1","Product Designation":"motor starter MCU for AS-Interface","protection class IP":"IP54","PROFIBUS DP protocol":"No","Design Of The Product":"direct starter","Number Of Digital Inputs":"2","Short Circuit Protection":"Yes","at AC at 400 V rated value":"1.25 A","brake control with 24 V DC":"No","Operating Frequency Minimum":"3 600 1/h","brake control with 180 V DC":"No","brake control with 400 V AC":"No","brake control with 500 V DC":"No","Type Of The Motor Protection":"solid-state","at AC-3 at 400 V rated value":"1.25 A","Operating Voltage Rated Value":"340 ... 460 V","Substance Prohibitance (Date)":"05/01/2012","Design Of The Switching Contact":"solid-state","Operating Frequency 1 Rated Value":"50 Hz","Operating Frequency 2 Rated Value":"60 Hz","Design Of Short-Circuit Protection":"circuit-breakers","Ambient Temperature During Operation":"-25 ... +50 °C","Product Component Motor Brake Output":"Yes","Type Of Voltage Of The Supply Voltage":"DC","reference code according to IEC 81346-2":"Q","Number Of Poles For Main Current Circuit":"3","control supply voltage at DC rated value":"20.4 ... 26.4 V","with low demand rate according to SN 31920":"50 %","protocol is supported AS-Interface protocol":"Yes","with high demand rate according to SN 31920":"75 %","operating power at AC-3 at 400 V rated value":"0.4 kW","Product Extension Braking Module For Brake Control":"No","Relative Negative Tolerance Of The Operating Frequency":"-10 %","Relative Positive Tolerance Of The Operating Frequency":"10 %","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","breaking capacity maximum short-circuit current (Icu) at 400 V rated value":"50 000 A","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.32 ... 1.25 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/caf70a132c32ff90ea3b6aed38aa7c43.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=236602&mlfb=3RK4320-5DQ61-0BA2"},"ai":{"faq":[{"question":"Does the 3RK4320-5DQ61-0BA2 include a circuit breaker for short-circuit protection?","answer":"No — the unit requires upstream circuit breakers for short-circuit protection. The starter itself provides solid-state overload protection (CLASS 10) but not short-circuit interruption."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK4320-5DQ61-0BA2","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/3RK4320-5DQ61-0BA2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}