{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2337-8XB30-1AC2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2337-8XB30-1AC2","canonicalUrl":"https://aoctrl.com/siemens/3RA2337-8XB30-1AC2","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2337-8XB30-1AC2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2337-8XB30-1AC2 reversing contactor assembly, S2 size, 30 kW at 400 V AC-3, 65 A at 480 V, 24 V 50/60 Hz coil, screw-type terminals, DIN rail mount.","salesMarkdown":"The 3RA2337-8XB30-1AC2 is a Siemens SIRIUS reversing contactor assembly — two mechanically interlocked contactors in one package, so a motor can run forward and reverse without external interlocks or a separate reversing starter. Rated 30 kW at 400 V AC-3 and 65 A at 480 V, it handles standard three-phase induction motors up to those loads. The AC-4 rating at 400 V is also 30 kW — that covers plugging and inching duty where the contactor opens under full locked-rotor current, not just running current. The coil pulls 24 V at 50 Hz and 24 V at 60 Hz — same control voltage, no transformer swap needed when line frequency changes. Each supplied contactor is a 3RT2037-1AG20 — that's the S2 frame size, which means the contactor footprint and terminal layout are consistent across the S2 family. ## Mounting and wiring — DIN rail fit and conductor sizing Mounts on 35 mm standard DIN rail with a screw and snap-on fastening. The mounting position is flexible: you can rotate it +/-180° on a vertical surface, and tilt it forward or backward by +/-22.5° — useful when the panel layout forces an odd angle. Dimensions are 141 mm high, 120 mm wide, and 130 mm deep — that depth includes the contactor body and the screw terminals. That covers most panel wiring up to 50 mm² on the load side. ## Lifecycle and sourcing — current production, quoted to order Sourced through independent distribution channels. The assembly includes two 3RT2037-1AG20 contactors — if you need a replacement contactor only, that's the spare part number.","metaTitle":"Siemens 3RA2337-8XB30-1AC2 reversing contactor assembly","metaDescription":"Siemens SIRIUS reversing contactor assembly 3RA2337-8XB30-1AC2, 30 kW at 400 V AC-3, 65 A at 480 V. S2 size, screw terminals.","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","title":"3RA2337-8XB30-1AC2","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","description":"reversing contactor assembly, AC-3e/AC-3, 65 A, 30 kW / 400 V, 3-pole, 24 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":"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":"30 kW","at 480 V rated value":"65 A","at 50 Hz rated value":"24 V","at 500 V rated value":"37 kW","at 60 Hz rated value":"24 V","at 600 V rated value":"62 A","at 690 V rated value":"37 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":"50 hp","Per Direction Of Rotation":"1","1 Of The Supplied Contactor":"3RT2037-1AG20","2 Of The Supplied Contactor":"3RT2037-1AG20","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: 125 A","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-3 maximum":"700 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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/deb26dfe37f8d3f9dc133735b81284e7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=697093&mlfb=3RA2337-8XB30-1AC2"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3RA2337-8XB30-1AC2?","answer":"Submit an RFQ against your BOM quantity. No stock-holding claim is made here."},{"question":"What are the key ratings for 3RA2337-8XB30-1AC2?","answer":"Mechanical life is 10,000,000 operating cycles typical."},{"question":"Will 3RA2337-8XB30-1AC2 drop into a panel specified around 6ES7517-3FP00-0AB0?","answer":"No — 6ES7517-3FP00-0AB0 is a Siemens S7-1500 CPU module, not a motor starter. The 3RA2337 is a reversing contactor assembly for motor control; it does not share a mounting footprint, wiring scheme, or function with a PLC CPU. A panel designed around that CPU would need a separate motor starter section."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2337-8XB30-1AC2","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/3RA2337-8XB30-1AC2 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}}