{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1303-6BS71-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1303-6BS71-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RK1303-6BS71-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1303-6BS71-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RK1303-6BS71-1AA0, reversing starter, solid-state switching, 3 A at AC-3 400 V, IP65, PROFIBUS DP, 24 VDC, 125 x 130 x 250 mm.","salesMarkdown":"The Siemens 3RK1303-6BS71-1AA0 is a reversing starter with solid-state switching contacts, designed for motor control in automated machinery where space is tight and the environment demands IP65 sealing. It handles reversing duty for three-phase motors up to 3 A in AC-3 category at 400 V — enough for small conveyors, positioning slides, or pump reversing stations that cycle infrequently (minimum 1 operation per hour). The 24 VDC control supply has a wide tolerance range of 20.4 to 28.8 V, so it holds in during dips that would drop a tighter-coil device. Two parameterizable digital inputs accept M12 connections for start/stop or direction commands, and the PROFIBUS DP interface lets a PLC orchestrate the reversing sequence without hardwired interlocks. Full motor protection is built in — short-circuit protection via fuses, and the solid-state output monitors for overload. Footprint is 125 mm deep, 130 mm wide, 250 mm tall — a compact block that mounts via the ISO 23570 socket for main power infeed and load-side outgoing feeder. The supply voltage line-side connects through a hybrid plug that also carries the PROFIBUS DP communication, reducing cable clutter at the motor. Digital input signals use two M12 sockets (one per input), and the communication interface uses a hybrid plug/socket pair. No separate PROFINET option here — it's PROFIBUS DP only, so verify your controller's fieldbus before specifying. Substance prohibitance compliance is documented as of May 1, 2012, covering RoHS and REACH requirements. No additional compliance documentation (UL, CSA, IEC) is listed in the spec record, so confirm with your quality team if those certifications are needed for your jurisdiction.","metaTitle":"Siemens 3RK1303-6BS71-1AA0 Reversing Starter, 3 A AC-3, IP65","metaDescription":"Siemens 3RK1303-6BS71-1AA0 reversing starter with solid-state switching, rated 3 A at AC-3 400 V. IP65 enclosure, PROFIBUS DP, 24 VDC control. Current lifecycle stage. Sourced to o","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Remote I/O & Fieldbus Modules"],"specifications":{"Depth":"125 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":"full motor protection","at AC-3 at 400 V rated value":"3 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":"solid-state","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":"1 100 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 ... 3 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=145792&mlfb=3RK1303-6BS71-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1303-6BS71-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What communication protocols does this starter support?","answer":"It supports PROFIBUS DP. PROFINET is not supported on this variant."},{"question":"What are the physical dimensions of the 3RK1303-6BS71-1AA0?","answer":"Depth is 125 mm, width is 130 mm, height is 250 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1303-6BS71-1AA0","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/3RK1303-6BS71-1AA0 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}}