{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RK1303-5BS41-1AA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RK1303-5BS41-1AA3","canonicalUrl":"https://aoctrl.com/siemens/3RK1303-5BS41-1AA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RK1303-5BS41-1AA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens reversing starter, 3RK1303-5BS41-1AA3, 24 V DC, 3 A at 400 V AC-3, IP65, PROFIBUS DP, current production.","salesMarkdown":"## Reversing starter with PROFIBUS DP and IP65 enclosure The Siemens 3RK1303-5BS41-1AA3 is a reversing starter with solid-state motor protection, rated 3 A at 400 V in AC-3 duty — that's the motor-switching current for a reversing application, not the resistive load rating. ## Fieldbus and I/O configuration Communication uses PROFIBUS DP (no PROFINET on this variant). The unit carries two digital inputs via M12 sockets, parameterizable, and zero digital outputs — the reversing contactor is driven internally by the solid-state logic. Supply voltage is 24 V DC nominal, with a permissible range of 20.4 to 28.8 V DC. The main energy infeed and load-side outgoing feeder use sockets per ISO 23570; the supply voltage line-side and communication interface use hybrid plugs and sockets. It is designed for direct machine mounting, not DIN-rail; the hybrid connectors for supply and communication are keyed to the enclosure.","metaTitle":"Siemens 3RK1303-5BS41-1AA3 Reversing Starter, 3 A AC-3, IP65","metaDescription":"Siemens reversing starter 3RK1303-5BS41-1AA3, 3 A at 400 V AC-3, IP65, PROFIBUS DP. Current production. Quoted to order against 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":"Yes","For Supply Voltage Line-Side":"hybrid plug","Type Of The Motor Protection":"solid-state","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":"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":"Yes","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":"$744.22","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=317493&mlfb=3RK1303-5BS41-1AA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RK1303-5BS41-1AA3/alternatives.json"},"ai":{"faq":[{"question":"What is the AC-3 motor rating for 3RK1303-5BS41-1AA3?","answer":"The reversing starter is rated 3 A at 400 V in AC-3 duty, which covers motor switching for reversing applications up to that current."},{"question":"Does 3RK1303-5BS41-1AA3 support PROFINET?","answer":"No, this variant supports PROFIBUS DP only; PROFINET is not available on this order code."},{"question":"Where can I buy 3RK1303-5BS41-1AA3 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RK1303-5BS41-1AA3","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/3RK1303-5BS41-1AA3 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}}