{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2415-8XE31-2BB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2415-8XE31-2BB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2415-8XE31-2BB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2415-8XE31-2BB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2415-8XE31-2BB4 star-delta (wye-delta) contactor assembly, size S00, 5.5 kW at 400 V, 24 VDC coil, spring-loaded terminals, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"## Star-delta contactor assembly, size S00 The Siemens 3RA2415-8XE31-2BB4 is a factory-assembled star-delta (wye-delta) contactor assembly from the SIRIUS product brand, designed for reduced-voltage starting of three-phase induction motors. It integrates three contactors — one 3RT2015-2BB41-0CC0 and two 3RT2015-2BB41 units — plus the interconnecting wiring and a RS assembly kit 3RA2913-2BB2, all pre-mounted on a common base plate. The magnet coil is rated at 24 VDC with a closing and holding power of 10 W each — a constant-energisation design that simplifies the control transformer sizing. The size S00 frame keeps the footprint compact: 84 mm height, 135 mm width, 145 mm depth. The mechanical life is rated at 10,000,000 operations typical, which is standard for this contactor frame size in cyclic duty. ## Termination and mounting Both the main current circuit and the auxiliary/control circuit use spring-loaded terminals (cage-clamp type). No screwdriver torque calibration is needed — the spring clamp ensures consistent contact force across the full wire range. Clearance requirements: 6 mm upwards, forwards, downwards, and at the sides; 0 mm backwards (the back of the assembly sits flush against the mounting surface). ## Environmental and protection data The assembly withstands vibration and shock per the specified values: 10.5 g / 5 ms and 6.6 g / 10 ms for both AC and DC excitation — this covers the typical mechanical shock profile in industrial panel installations. No auxiliary switch is fitted as standard (product extension auxiliary switch: No), and the assembly has no bus communication function (product function bus communication: No) — it is a pure power switching assembly. For short-circuit protection, the assigned fuse types are gG NH 3NA, DIAZED 5SB, or NEOZED 5SE, all rated at 20 A. This is the recommended upstream fuse rating for the star-delta configuration at the given motor powers. Sourced through independent distribution channels. The assembly is supplied as a complete unit with the three contactors and the RS kit pre-assembled.","metaTitle":"Siemens 3RA2415-8XE31-2BB4 SIRIUS Star-Delta Starter","metaDescription":"Siemens 3RA2415-8XE31-2BB4 SIRIUS star-delta contactor assembly, size S00, 5.5 kW at 400 V, 24 VDC coil, spring-loaded terminals.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","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":"3RA2415-8XE31-2BB4","Height":"84 mm","Upwards":"6 mm","Forwards":"6 mm","Backwards":"0 mm","Downwards":"6 mm","At The Side":"6 mm","description":"Contactor assemblies for star-delta (wye-delta) start, I/O-Link AC-3, 5.5 kW/400 V, 24 V DC 3-pole, Size S00 Size S00, Spring-type terminals electrical and mechanical interlock 2 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)","at DC rated value":"24 V","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 500 V rated value":"7.2 kW","at 690 V rated value":"9.2 kW","Instantaneous Contact":"3","For Main Current Circuit":"spring-loaded terminals","1 Of The Supplied Contactor":"3RT2015-2BB41-0CC0","2 Of The Supplied Contactor":"3RT2015-2BB41","3 Of The Supplied Contactor":"3RT2015-2BB41","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","closing power of magnet coil at DC":"10 W","holding power of magnet coil at DC":"10 W","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":"DC","operating voltage at AC-3 rated value maximum":"690 V","Of The Supplied Function Module For Communication":"3RA2711-2CA00","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","product function control circuit interface with IO link":"Yes","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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/edf381fee7a96189f9b9cecd8314da96.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=62675&mlfb=3RA2415-8XE31-2BB4"},"ai":{"faq":[{"question":"What is the 3RA2415-8XE31-2BB4 used for?","answer":"It integrates three contactors and the interconnecting wiring on a common base plate."},{"question":"What are the mounting clearances for the 3RA2415-8XE31-2BB4?","answer":"Required clearances are 6 mm upwards, forwards, downwards, and at the sides; 0 mm backwards (the assembly sits flush against the mounting surface)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2415-8XE31-2BB4","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/3RA2415-8XE31-2BB4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T23:32:54.568Z","lastPublished":"2026-07-20T23:32:54.568Z","indexable":true}}