{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2415-8XF31-2AB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2415-8XF31-2AB0","canonicalUrl":"https://aoctrl.com/siemens/3RA2415-8XF31-2AB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2415-8XF31-2AB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor assembly for star-delta (wye-delta) start, 5.5 kW at 400 V, spring-loaded terminals, 3RA2415-8XF31-2AB0.","salesMarkdown":"It ships with three 3RT2015-2AB01 contactors and the RS assembly kit 3RA2913-2BB2 already integrated, so the line-up and interlocking are done — mount it and wire the power and control circuits. The 5.5 kW at 400 V rating (AC-3 motor duty) tells you this assembly switches a standard 3-phase induction motor up to that load. The same assembly also carries 7.2 kW at 500 V and 9.2 kW at 690 V, so on a 690 V line it handles a bigger motor — but the contactor sizing and thermal overload relay (not included) must be coordinated for the actual motor FLA. The spring-loaded terminals on both main and control circuits accept 2x (0.5 to 4 mm²) solid or 2x (0.5 to 2.5 mm²) stranded, so no ring lugs needed; strip and push. Physical footprint: 84 mm high, 135 mm wide, 145 mm deep. Clearance around the assembly: 6 mm upwards, forwards, downwards, and to the side; 0 mm backwards (flush to the rail). That keeps the panel layout tight.","metaTitle":"Siemens 3RA2415-8XF31-2AB0 SIRIUS Star-Delta Starter, 5.5 kW","metaDescription":"Siemens 3RA2415-8XF31-2AB0 SIRIUS contactor assembly for star-delta starting. 5.5 kW at 400 V, spring-loaded terminals, 35 mm DIN rail.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"145 mm","Solid":"2x (0.5 ... 4 mm²)","Width":"135 mm","at AC":"10,5g / 5 ms, 6,6g / 10 ms","at DC":"10,5g / 5 ms, 6,6g / 10 ms","title":"3RA2415-8XF31-2AB0","Height":"84 mm","Upwards":"6 mm","Forwards":"6 mm","at 50 Hz":"0.25","at 60 Hz":"0.25","Backwards":"0 mm","Downwards":"6 mm","At The Side":"6 mm","description":"Contactor assembly for star-delta (wye-delta) start AC-3, 5.5 kW/400 V, 24 V AC 50/60 Hz, 3-pole, Size S00 Spring-type terminals electrical and mechanical interlock 3 NO integrated","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Contactor assembly for star-delta (wye-delta) start","Of Contactor Typical":"10 000 000","at 400 V rated value":"5.5 kW","at 50 Hz rated value":"24 V","at 500 V rated value":"7.2 kW","at 60 Hz rated value":"24 V","at 690 V rated value":"9.2 kW","Instantaneous Contact":"3","For Main Current Circuit":"spring-loaded terminals","1 Of The Supplied Contactor":"3RT2015-2AB01","2 Of The Supplied Contactor":"3RT2015-2AB01","3 Of The Supplied Contactor":"3RT2015-2AB01","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"1x (20 ... 12)","of the supplied RS assembly kit":"3RA2913-2BB2","For Auxiliary And Control Circuit":"spring-loaded terminals","Product Extension Auxiliary Switch":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 20 A","At Contactor For Auxiliary Contacts":"Spring-type terminals","operating frequency at AC-3 maximum":"1 000 1/h","With Type Of Coordination 1 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 35 A","at AWG cables for auxiliary contacts":"2x (20 ... 14)","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"< 1 error per 100 million operating cycles","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"75 %","Type Of Voltage Of The Control Supply Voltage":"AC","operating voltage at AC-3 rated value maximum":"690 V","contact rating of auxiliary contacts according to UL":"A600 / Q600","Of The Supplied Function Module For Wye-Delta Circuits":"3RA2816-0EW20","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","product function control circuit interface with IO link":"No","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$160.02","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b3c8bd23b4b8185681ae1d69edcdb285.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=317891&mlfb=3RA2415-8XF31-2AB0"},"ai":{"faq":[{"question":"What contactors are supplied in this assembly?","answer":"Three 3RT2015-2AB01 contactors are included, along with the RS assembly kit 3RA2913-2BB2. The interlocking and mechanical assembly are factory-completed."},{"question":"How does this compare to a direct online starter?","answer":"A star-delta starter reduces inrush current during motor start-up by connecting the motor windings in star configuration first, then switching to delta for full-load running. This is useful for larger motors where a direct online start would cause excessive voltage drop on the supply. The 3RA2415-8XF31-2AB0 handles this transition automatically with its three contactors and integrated timing."},{"question":"Where can I buy 3RA2415-8XF31-2AB0?","answer":"This part is sourced to order; availability and pricing are confirmed at quote time. Contact our sales team for current lead time and pricing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2415-8XF31-2AB0","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/3RA2415-8XF31-2AB0 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}}