{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2436-8XF32-1AG2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2436-8XF32-1AG2","canonicalUrl":"https://aoctrl.com/siemens/3RA2436-8XF32-1AG2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2436-8XF32-1AG2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2436-8XF32-1AG2 star-delta (wye-delta) contactor assembly, 45 kW at 400 V AC-3, Size S2, screw-type terminals, supplied with three contactors.","salesMarkdown":"## Star-delta contactor assembly, 45 kW — what's in the box The 3RA2436-8XF32-1AG2 is a pre-assembled SIRIUS star-delta (wye-delta) contactor set for motor starting, rated 45 kW at 400 V AC-3. It ships with three contactors: two 3RT2036-1AG20 for the line and star legs, and one 3RT2028-1AG20 for the delta leg, plus the 3RA2933-2C RS assembly kit. The 45 kW rating at 400 V means this assembly handles a typical 80 A motor load in AC-3 duty — the spec calls for 80 A fuses (gG NH 3NA, DIAZED 5SB, or NEOZED 5SE) on the line side. That's the right-sized spec for a 45 kW pump or fan on a 400 V supply. ## Panel fit and mounting — screw-fix, not DIN rail Mounting is by screw fixing, not DIN-rail snap-on. The assembly measures 177.5 mm wide by 142 mm high by 223 mm deep — budget that depth into the enclosure, especially if the gland plate is tight. No special crimp tool needed, but torque the screws to the Siemens spec for the wire size.","metaTitle":"Siemens 3RA2436-8XF32-1AG2 SIRIUS Star-Delta Starter, 45 kW","metaDescription":"Siemens 3RA2436-8XF32-1AG2 SIRIUS star-delta contactor assembly, 45 kW at 400 V AC-3. Screw terminals, supplied with 3RT2036 and 3RT2028 contactors.","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":"3RA2436-8XF32-1AG2","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, 45 kW/400 V, 110 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":"800 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":"45 kW","at 50 Hz rated value":"110 V","at 60 Hz rated value":"110 V","Instantaneous Contact":"3","For Main Current Circuit":"screw-type terminals","1 Of The Supplied Contactor":"3RT2036-1AG20","2 Of The Supplied Contactor":"3RT2036-1AG20","3 Of The Supplied Contactor":"3RT2028-1AG20","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/6358cd68fb8929c6e8dda35777492558.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=246075&mlfb=3RA2436-8XF32-1AG2"},"ai":{"faq":[{"question":"What contactors are supplied with the 3RA2436-8XF32-1AG2?","answer":"The assembly ships with two 3RT2036-1AG20 contactors (line and star legs) and one 3RT2028-1AG20 (delta leg), plus the 3RA2933-2C RS assembly kit. All terminals are screw-type."},{"question":"What is the panel footprint of the 3RA2436-8XF32-1AG2?","answer":"The assembly measures 177.5 mm wide by 142 mm high by 223 mm deep."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2436-8XF32-1AG2","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/3RA2436-8XF32-1AG2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}