{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2434-8XF32-1AL2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2434-8XF32-1AL2","canonicalUrl":"https://aoctrl.com/siemens/3RA2434-8XF32-1AL2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2434-8XF32-1AL2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, 3RA2434-8XF32-1AL2, star-delta (wye-delta) contactor assembly, 22 kW at 400 V AC-3, Size S2, screw-type terminals, three supplied contactors 3RT2035-1AL20 and 3RT2026-1AL20.","salesMarkdown":"The Siemens SIRIUS 3RA2434-8XF32-1AL2 is a pre-assembled star-delta (wye-delta) contactor assembly rated for 22 kW at 400 V AC-3, meaning it handles the motor starting current for a 22 kW induction motor on a 400 V three-phase supply. It ships as a complete unit with three contactors: two 3RT2035-1AL20 and one 3RT2026-1AL20, plus the RS assembly kit 3RA2933-2C — no separate ordering of individual contactors and interconnecting wiring. The Size S2 contactor frame keeps the assembly compact for a 22 kW starter — 177.5 mm wide, 142 mm high, 223 mm deep — fitting within a standard 600 mm enclosure depth with room for gland plates and cable management. This flexibility simplifies panel layout when the starter must fit around existing busbars or ducting. The main power circuit accepts solid conductors up to 2x (1 … 35 mm²) and 1x (1 … 50 mm²), covering the cable sizes for a 22 kW motor feed. The control circuit uses screw-type terminals accepting 2x (0.5 … 1.5 mm²) or 2x (0.75 … 2.5 mm²) solid or stranded wire. All terminals are screw-type, so a standard slotted or Pozidriv driver is all the panel builder needs. Clearance distances: 10 mm upwards, forwards, downwards, and to the side; 0 mm backwards (mounting surface). These clearances are the minimum to maintain rated creepage and clearance — a panel builder can abut the back directly against the mounting plate. Vibration resistance is specified at 18.5g / 5 ms and 11.6g / 10 ms under AC conditions — relevant for installations on machinery with shock loads, such as punch presses or large compressors.","metaTitle":"Siemens 3RA2434-8XF32-1AL2 SIRIUS Contactor Assembly, 22 kW","metaDescription":"Siemens SIRIUS 3RA2434-8XF32-1AL2 star-delta contactor assembly. Active production. Rated 22 kW at 400 V AC-3. Includes three contactors. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"223 mm","Solid":"2x (1 ... 35 mm²), 1x (1 ... 50 mm²)","Width":"177.5 mm","at AC":"18.5g / 5 ms, 11.6g / 10 ms","title":"3RA2434-8XF32-1AL2","Height":"142 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.36","at 60 Hz":"0.39","Backwards":"0 mm","Downwards":"10 mm","At The Side":"10 mm","description":"Contactor assembly for star-delta (wye-delta) start AC-3, 22/30 kW/400 V, 230 V AC 50/60 Hz, 3-pole, size S2 screw terminals electrical and mechanical interlock 3 NO + 3 NC integrated","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-3 maximum":"1 000 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing","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":"S2","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 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 60 Hz rated value":"230 V","Instantaneous Contact":"3","For Main Current Circuit":"screw-type terminals","1 Of The Supplied Contactor":"3RT2035-1AL20","2 Of The Supplied Contactor":"3RT2035-1AL20","3 Of The Supplied Contactor":"3RT2026-1AL20","at AC-3 rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2014","of the supplied RS assembly kit":"3RA2933-2C","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 80 A","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 160 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 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), 2x (0.75 ... 2.5 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 %","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","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/ae3a9d42dd5215413994ab186c0e82fe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=434683&mlfb=3RA2434-8XF32-1AL2"},"ai":{"faq":[{"question":"What is the equivalent or replacement for 3RA2434-8XF32-1AL2?","answer":"The 3RA2434-8XF32-1AL2 is itself the active order code. No official successor has been assigned. For a functional equivalent, a panel builder could assemble a star-delta starter from individual SIRIUS contactors (two 3RT2035 and one 3RT2026) plus the RS kit 3RA2933-2C, but the pre-assembled unit saves wiring time and reduces the parts count on the BOM."},{"question":"How many auxiliary contacts does the 3RA2434-8XF32-1AL2 have?","answer":"The assembly ships with no auxiliary contact block fitted — the product extension auxiliary switch is listed as 'No'. If the application needs early-make or late-break signaling for the star-to-delta transition, a separate auxiliary contact block must be added to one of the supplied contactors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2434-8XF32-1AL2","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/3RA2434-8XF32-1AL2 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}}