{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2426-8XF32-2AL2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2426-8XF32-2AL2","canonicalUrl":"https://aoctrl.com/siemens/3RA2426-8XF32-2AL2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2426-8XF32-2AL2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2426-8XF32-2AL2 star-delta (wye-delta) contactor assembly, 22 kW at 400 V, S0 size, spring-loaded terminals, screw and snap-on mounting onto 35 mm rail.","salesMarkdown":"## Star-delta contactor assembly — what ships in the box The 3RA2426-8XF32-2AL2 is a pre-assembled SIRIUS contactor assembly for star-delta (wye-delta) motor starting — it ships with three contactors and the interconnecting RS kit already mounted on a common base plate. The supplied contactors are two 3RT2027-2AL20 units (line and delta legs) and one 3RT2026-2AL20 (star leg), wired for a 22 kW motor at 400 V, 50/60 Hz. ## Mounting and wiring — DIN rail or screw-fixed, spring-clamp terminals Dimensions are 135 mm wide × 114 mm high × 171 mm deep — the S0 contactor footprint fits standard panel layouts with 6 mm clearance above, below, and to the sides, and 0 mm backward clearance. ## Environmental and mechanical ratings The assembly withstands shock at 13.5 g / 5 ms (AC) and 15 g / 5 ms (DC), with vibration resistance at 0.25 mm (50 Hz) and 0.28 mm (60 Hz). Mechanical life of the contactor is rated at 10,000,000 operating cycles typical. The assembly has three instantaneous main contacts and no auxiliary switch or bus communication extension.","metaTitle":"Siemens 3RA2426-8XF32-2AL2 SIRIUS Star-Delta Starter","metaDescription":"Siemens SIRIUS 3RA2426-8XF32-2AL2 star-delta contactor assembly, 22 kW at 400 V, S0 size, spring-loaded terminals. Active production — quoted to order.","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":"3RA2426-8XF32-2AL2","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, 230 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":"230 V","at 500 V rated value":"19 kW","at 60 Hz rated value":"230 V","at 690 V rated value":"19 kW","Instantaneous Contact":"3","For Main Current Circuit":"spring-loaded terminals","1 Of The Supplied Contactor":"3RT2027-2AL20","2 Of The Supplied Contactor":"3RT2027-2AL20","3 Of The Supplied Contactor":"3RT2026-2AL20","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/2d832a8fb6efd705aa1a4a56c869db3b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=471193&mlfb=3RA2426-8XF32-2AL2"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2426-8XF32-2AL2","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/3RA2426-8XF32-2AL2 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}}