{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1303-2AS54-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1303-2AS54-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1303-2AS54-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1303-2AS54-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RK1303 reversing starter, 3RK1303-2AS54-1AA0, 4 A at AC-3 400 V, IP65, PROFIBUS DP, 100 kA SCCR.","salesMarkdown":"The Siemens 3RK1303-2AS54-1AA0 is a SIRIUS 3RK1303 reversing starter — a motor-reversing contactor assembly with integrated overload protection, built into an IP65-rated enclosure for direct machine mounting. The AC-3 rating of 4 A at 400 V is the motor-switching current, not the resistive load rating — expect to use it with a 1.5 kW to 2.2 kW motor on a 400 V three-phase supply. Motor protection is via thermistor input (PTC), so the motor must have a PTC thermistor embedded in its windings — this is standard on IEC motors, but verify on retrofit jobs. The reversing function is built in, meaning two contactors mechanically interlocked inside the housing, so no external interlock wiring is needed. It is not IP67 or IP69K, so do not submerge it or direct high-pressure steam at it. The 24 V DC control supply (rated 20.4 to 28.8 V) is standard for PLC-driven panels; the coil holds at 24 V nominal and drops out below 20.4 V. Communication is via PROFIBUS DP (the unit has a PROFIBUS DP interface, not PROFINET), which means it integrates into a classic fieldbus architecture — not a modern PROFINET ring. The hybrid plug/socket on the line side carries both power and communication, using the ISO 23570 connector standard. Two M12 digital inputs are on board for local sensors (e.g., limit switches for end-of-travel), parameterizable via the bus. Dimensions: 130 mm wide, 250 mm high, 107 mm deep. It mounts via integrated fixing points or the ISO 23570 socket.","metaTitle":"Siemens 3RK1303-2AS54-1AA0 reversing starter, 4A AC-3, IP65","metaDescription":"Siemens 3RK1303-2AS54-1AA0 reversing starter, rated 4A AC-3 at 400V, IP65, PROFIBUS DP, 100kA SCCR. Active production, sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"107 mm","Width":"130 mm","at DC":"24 ... 24 V","Height":"250 mm","Type Of Voltage":"DC","lifecycle_stage":"current","Bus Communication":"Yes","PROFINET protocol":"No","at DC rated value":"20.4 ... 28.8 V","Type Of Assignment":"1","Maximum Permissible":"28.8 V","Minimum Permissible":"20.4 V","protection class IP":"IP65","PROFIBUS DP protocol":"Yes","at 400 V rated value":"100 kA","Design Of The Product":"reversing starter","Of Auxiliary Contacts":"< 1 error per 100 million operating cycles","For Main Energy Infeed":"socket according to ISO23570","supply voltage 1 at DC":"24 ... 24 V","Number Of Digital Inputs":"2","Short Circuit Protection":"Yes","For Digital Input Signals":"2","For Digital Output Signals":"0","1 For Digital Input Signals":"M12 socket","2 For Digital Input Signals":"M12 socket","Operating Frequency Minimum":"1 1/h","brake control with 400 V AC":"No","For Supply Voltage Line-Side":"hybrid plug","Type Of The Motor Protection":"thermistor","at AC-3 at 400 V rated value":"4 A","For Load-Side Outgoing Feeder":"socket according to ISO23570","Operating Voltage Rated Value":"400 ... 500 V","Substance Prohibitance (Date)":"05/01/2012","Digital Inputs Parameterizable":"Yes","For Communication Transmission":"hybrid socket","Of The Communication Interface":"hybrid plug","Design Of The Switching Contact":"mechanical","Digital Outputs Parameterizable":"No","For Supply Voltage Transmission":"hybrid socket","Design Of Short-Circuit Protection":"fuse","Ambient Temperature During Operation":"-20 ... +40 °C","Product Component Motor Brake Output":"No","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 ... 28.8 V","design of the interface PROFINET protocol":"No","with low demand rate according to SN 31920":"50 %","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"75 %","operating power at AC-3 at 400 V rated value":"4 000 W","At The Manufacturer-Specific Device Interface":"M12 socket","Type Of Voltage Of The Control Supply Voltage":"DC","Type Of Electrical Connection For Main Current Circuit":"tab terminals","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.3 ... 9 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=351638&mlfb=3RK1303-2AS54-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1303-2AS54-1AA0/alternatives.json"},"ai":{"faq":[{"question":"Does this unit support PROFINET or only PROFIBUS?","answer":"Only PROFIBUS DP. The evidence lists PROFIBUS DP protocol as present and PROFINET protocol as absent. For a PROFINET ring, you would need a different variant with a PN interface."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1303-2AS54-1AA0","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/3RK1303-2AS54-1AA0 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}}