{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2338-8XB30-1AG2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2338-8XB30-1AG2","canonicalUrl":"https://aoctrl.com/siemens/3RA2338-8XB30-1AG2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2338-8XB30-1AG2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing contactor assembly, 3RA2338-8XB30-1AG2, Size S2, 37 kW at 400 V AC, 110 V 50/60 Hz coil, screw terminals, snap-on DIN rail mount.","salesMarkdown":"The Siemens 3RA2338-8XB30-1AG2 is a SIRIUS reversing contactor assembly — a factory-built, mechanically interlocked pair of contactors that reverses a three-phase motor without external wiring interlocks. It is specified for a 37 kW motor at 400 V AC (AC-3 duty) and carries a 65 A rated operational current at 480 V. The coil is 110 V, 50/60 Hz. Two 3RT2038-1AG20 contactors are built into the assembly, so the electrical ratings and terminal capacities match that base contactor. Mounts on 35 mm standard DIN rail via the snap-on mechanism or with screws. The enclosure footprint is 141 mm high by 120 mm wide by 130 mm deep. Clearance around the assembly: 10 mm upwards, forwards, downwards, and to the side; 0 mm backwards. That 10 mm side clearance is tight — plan your gland plate and wireway spacing accordingly. ## Terminal capacities and wiring Main circuit terminals are screw-type, accepting 2x (1 … 35 mm²) solid or 1x (1 … 50 mm²) solid. The coil and auxiliary terminals accept 2x (0.5 … 1.5 mm²) or 2x (0.75 … 2.5 mm²) solid or stranded. That 50 mm² main terminal is generous for the 65 A rating — you can land a single large conductor without a ferrule adapter. The lifecycle stage for this order code is listed as current — meaning Siemens has not flagged it for discontinuation or end-of-life as of the latest data.","metaTitle":"Siemens 3RA2338-8XB30-1AG2 Reversing Contactor Assembly","metaDescription":"Siemens SIRIUS reversing contactor assembly 3RA2338-8XB30-1AG2, 37 kW at 400 V, 110 V 50/60 Hz coil. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"130 mm","Solid":"2x (1 ... 35 mm²), 1x (1 ... 50 mm²)","Width":"120 mm","at AC":"18.5g / 5 ms, 11.6g / 10 ms","Height":"141 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","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":"S2","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":"37 kW","at 480 V rated value":"65 A","at 50 Hz rated value":"110 V","at 500 V rated value":"37 kW","at 60 Hz rated value":"110 V","at 600 V rated value":"62 A","at 690 V rated value":"45 kW","Instantaneous Contact":"2","For Main Current Circuit":"screw-type terminals","at 220/230 V rated value":"20 hp","at 460/480 V rated value":"50 hp","at 575/600 V rated value":"60 hp","Per Direction Of Rotation":"1","1 Of The Supplied Contactor":"3RT2038-1AG20","2 Of The Supplied Contactor":"3RT2038-1AG20","at AC-4 at 400 V rated value":"30 kW","Substance Prohibitance (Date)":"10/01/2014","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","of the supplied RS assembly kit":"3RA2933-2AA1","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: 160 A","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-3 maximum":"500 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","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","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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=163157&mlfb=3RA2338-8XB30-1AG2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2338-8XB30-1AG2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RA2338-8XB30-1AG2 and how do I get a price?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — confirmed at quote time, no stock count or price listed here."},{"question":"Is 3RA2338-8XB30-1AG2 obsolete or end of life?","answer":"No — the lifecycle stage is listed as current. Siemens has not issued an end-of-life notice for this order code. It remains a standard catalog item in the SIRIUS contactor family."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2338-8XB30-1AG2","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/3RA2338-8XB30-1AG2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}