{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2328-8XB30-1AG2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2328-8XB30-1AG2","canonicalUrl":"https://aoctrl.com/siemens/3RA2328-8XB30-1AG2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2328-8XB30-1AG2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2328-8XB30-1AG2 reversing contactor assembly, S0 size, 34 A at 480 V, 18.5 kW at 400 V, 110 V 50/60 Hz coil, screw terminals, DIN rail mount.","salesMarkdown":"The 3RA2328-8XB30-1AG2: No stock-holding claim — quoted per order. ## What the 34 A at 480 V rating means for fit The headline 34 A at 480 V is the AC-3 motor-switching current — the value that governs whether this assembly starts and stops a given motor without welding the contacts. For a 480 V three-phase motor, 34 A in AC-3 translates to roughly 25 hp, which matches the 25 hp rating at 460/480 V on the spec line. At 400 V, the assembly is rated 18.5 kW in AC-3 duty — that is the continuous motor load it handles across the line. The AC-4 rating (inching / plugging duty) at 400 V is 11 kW, about 60 % of the AC-3 figure, so if the application requires frequent reversing under load, size against the AC-4 number, not the AC-3 headline. ## Mounting and wiring — drops into a standard S0 panel footprint S0 contactor size, 90 mm wide, 101 mm tall, 97 mm deep — fits the standard S0 DIN-rail footprint. All terminals are screw-type — no special crimp tooling needed for the panel build. ## Mechanical life and environmental limits Rated for 10,000,000 operating cycles typical — that is the mechanical life of the contactor mechanism, not the electrical life under load. In a reversing application that cycles once every 10 seconds, that is roughly 3 years of continuous 24/7 operation before the mechanism wears out. Shock resistance: 13.5 g / 5 ms and 8.3 g / 10 ms on AC, 15 g / 5 ms and 10 g / 10 ms on DC. The clearance around the assembly: 6 mm upwards, forwards, downwards, and to the side; 0 mm backwards — it can sit flush against the back panel.","metaTitle":"Siemens 3RA2328-8XB30-1AG2 SIRIUS Reversing Contactor","metaDescription":"Siemens SIRIUS 3RA2328-8XB30-1AG2 reversing contactor assembly, S0 size, 34 A at 480 V, 18.5 kW at 400 V. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"97 mm","Solid":"2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²)","Width":"90 mm","at AC":"13,5g / 5 ms, 8,3g / 10 ms","at DC":"15g / 5 ms, 10g / 10 ms","title":"3RA2328-8XB30-1AG2","Height":"101 mm","Upwards":"6 mm","Forwards":"6 mm","at 50 Hz":"0.27","at 60 Hz":"0.8 ... 1.1","Backwards":"0 mm","Downwards":"6 mm","At The Side":"6 mm","description":"reversing contactor assembly, AC-3e/AC-3, 38 A, 18.5 kW / 400 V, 3-pole, 110 V AC, 50/60 Hz, screw terminal, electrical and mechanical interlock, auxiliary contacts: 2 x 1 NO","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":"S0","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Reversing contactor assembly","Of Contactor Typical":"10 000 000","at 400 V rated value":"18.5 kW","at 480 V rated value":"34 A","at 50 Hz rated value":"110 V","at 500 V rated value":"18.5 kW","at 60 Hz rated value":"110 V","at 600 V rated value":"27 A","at 690 V rated value":"18.5 kW","Instantaneous Contact":"2","For Main Current Circuit":"screw-type terminals","at 220/230 V rated value":"10 hp","at 460/480 V rated value":"25 hp","at 575/600 V rated value":"25 hp","Per Direction Of Rotation":"1","1 Of The Supplied Contactor":"3RT2028-1AG20","2 Of The Supplied Contactor":"3RT2028-1AG20","at AC-4 at 400 V rated value":"11 kW","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","of the supplied RS assembly kit":"3RA2923-2AA1","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Product Function Bus Communication":"Yes","With Type Of Assignment 2 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 50 A","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-3 maximum":"750 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 ... 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":"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","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":"$156.21","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b661b81ea7d81788a7661c218316281c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=5302&mlfb=3RA2328-8XB30-1AG2"},"ai":{"faq":[{"question":"What contactors are supplied inside 3RA2328-8XB30-1AG2?","answer":"The assembly includes two 3RT2028-1AG20 contactors, one per direction of rotation, with a mechanical interlock. This is a pre-configured reversing pair — no separate reversing kit or wiring of interlocks needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2328-8XB30-1AG2","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/3RA2328-8XB30-1AG2 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}}