{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2446-8XF32-1AG2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2446-8XF32-1AG2","canonicalUrl":"https://aoctrl.com/siemens/3RA2446-8XF32-1AG2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2446-8XF32-1AG2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2446-8XF32-1AG2 contactor assembly for star-delta (wye-delta) start, 90 kW at 400 V, 132 kW at 690 V, Size S3, screw-type terminals, 220 x 180 x 244 mm.","salesMarkdown":"## Star-delta starter assembly, S3 frame, 90 kW at 400 V The Siemens 3RA2446-8XF32-1AG2 is a factory-assembled SIRIUS contactor assembly for star-delta (wye-delta) motor starting. It ships with three contactors: two 3RT2046-1AG20 units and one 3RT2037-1AG20, plus the 3RA2943-2C RS assembly kit. Rated at 90 kW at 400 V and 132 kW at 690 V, this S3-frame assembly handles the higher starting torque demand of pumps, compressors, and conveyors while reducing inrush current during the wye phase. ## Panel fit and mounting flexibility Clearance requirements are 10 mm upward, 10 mm forward, 10 mm downward, and 10 mm at the side; zero clearance needed backward — useful when the panel back wall is tight. All power and control terminations use screw-type terminals. ## Operating conditions and compliance The assembly operates in ambient temperatures from -25 to +60 °C and can be stored from -55 to +80 °C. The mechanical life of the typical contactor is rated at 10,000,000 operations, with a maximum AC-3 operating frequency of 850 cycles per hour. Shock resistance is specified at 10.6 g / 5 ms and 6.3 g / 10 ms. Vibration resistance at 50 Hz is 0.35 g and at 60 Hz is 0.41 g. No auxiliary switch or bus communication module is included — the design keeps the control circuit simple.","metaTitle":"Siemens 3RA2446-8XF32-1AG2 SIRIUS Star-Delta Starter","metaDescription":"Siemens 3RA2446-8XF32-1AG2 SIRIUS contactor assembly for star-delta start. 90 kW at 400 V, 132 kW at 690 V. Screw terminals, DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"244 mm","Width":"220 mm","at AC":"10.6 g / 5 ms, 6.3 g / 10 ms","title":"3RA2446-8XF32-1AG2","Height":"180 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.35","at 60 Hz":"0.41","Backwards":"0 mm","Downwards":"10 mm","At The Side":"10 mm","description":"Contactor assembly for star-delta (wye-delta) start AC-3, 90 kW/400 V 110 V AC, 50/60 Hz Size S3, screw terminal electrical and mechanical interlock 3 NO+3 NC","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-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":"S3","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":"90 kW","at 50 Hz rated value":"110 V","at 60 Hz rated value":"110 V","at 690 V rated value":"132 kW","Instantaneous Contact":"3","For Main Current Circuit":"screw-type terminals","1 Of The Supplied Contactor":"3RT2046-1AG20","2 Of The Supplied Contactor":"3RT2046-1AG20","3 Of The Supplied Contactor":"3RT2037-1AG20","Substance Prohibitance (Date)":"03/01/2017","at AWG cables for main contacts":"2x (10 ... 1/0), 1x (10 ... 2/0)","of the supplied RS assembly kit":"3RA2943-2C","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: 160 A","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-3 maximum":"850 1/h","With Type Of Coordination 1 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 250 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","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²), 1x (10 ... 50 mm²)","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","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":"$674.37","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d7e42fe92276cf34a40047fd164a265d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=629726&mlfb=3RA2446-8XF32-1AG2"},"ai":{"faq":[{"question":"What contactors are included with this star-delta assembly?","answer":"The assembly includes two 3RT2046-1AG20 contactors and one 3RT2037-1AG20 contactor, plus the 3RA2943-2C RS assembly kit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2446-8XF32-1AG2","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/3RA2446-8XF32-1AG2 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}}