{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2426-8XF32-2AC2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2426-8XF32-2AC2","canonicalUrl":"https://aoctrl.com/siemens/3RA2426-8XF32-2AC2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2426-8XF32-2AC2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2426-8XF32-2AC2 wye-delta contactor assembly, 22 kW at 400 V, S0 size, spring-loaded terminals, 114 x 135 x 171 mm.","salesMarkdown":"The Siemens 3RA2426-8XF32-2AC2 is a SIRIUS contactor assembly purpose-built for star-delta (wye-delta) motor starting. The assembly ships with three contactors: two 3RT2027-2AC20 units for the line and star legs, and one 3RT2026-2AC20 for the delta leg. The supplied RS assembly kit (3RA2923-2BB2) ties them together on a common mounting base. ## Mounting and wiring — DIN rail, spring terminals Main current circuit uses spring-loaded terminals; auxiliary and control circuits also use spring-loaded terminals. AWG main contacts accept 1x (18 … 8).","metaTitle":"Siemens 3RA2426-8XF32-2AC2 SIRIUS Wye-Delta Starter","metaDescription":"Siemens 3RA2426-8XF32-2AC2 SIRIUS wye-delta contactor assembly, 22 kW at 400 V. Active production, quoted to order. Spring-loaded terminals, S0 size.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"171 mm","Solid":"2x (1 ... 10 mm²)","Width":"135 mm","at AC":"13,5g / 5 ms, 8,3g / 10 ms","at DC":"15g / 5 ms, 10g / 10 ms","title":"3RA2426-8XF32-2AC2","Height":"114 mm","Upwards":"6 mm","Forwards":"6 mm","at 50 Hz":"0.25","at 60 Hz":"0.28","Backwards":"0 mm","Downwards":"6 mm","At The Side":"6 mm","description":"Contactor assembly for star-delta (wye-delta) start AC-3, 22 kW/400 V, 24 V AC 50/60 Hz, 3-pole, size S0 Spring-type terminals electrical and mechanical interlock 3 NO + 3 NC 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":"S0","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":"22 kW","at 50 Hz rated value":"24 V","at 500 V rated value":"19 kW","at 60 Hz rated value":"24 V","at 690 V rated value":"19 kW","Instantaneous Contact":"3","For Main Current Circuit":"spring-loaded terminals","1 Of The Supplied Contactor":"3RT2027-2AC20","2 Of The Supplied Contactor":"3RT2027-2AC20","3 Of The Supplied Contactor":"3RT2026-2AC20","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"1x (18 ... 8)","of the supplied RS assembly kit":"3RA2923-2BB2","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: 50 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: 125 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":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5cebce95b77c72f1ded894ce635493bb.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=330042&mlfb=3RA2426-8XF32-2AC2"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to 3RA2426-8XF32-2AC2?","answer":"The assembly uses three specific contactors (3RT2027-2AC20 and 3RT2026-2AC20) and a dedicated RS kit — any replacement would require a different combination of components."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2426-8XF32-2AC2","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/3RA2426-8XF32-2AC2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}