{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2337-8XB30-1AK6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2337-8XB30-1AK6","canonicalUrl":"https://aoctrl.com/siemens/3RA2337-8XB30-1AK6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2337-8XB30-1AK6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing contactor assembly, 3RA2337-8XB30-1AK6, size S2, 30 kW at 400 V AC-3, 65 A at 480 V, screw terminals, 35 mm DIN rail.","salesMarkdown":"## What this reversing contactor assembly delivers The Siemens 3RA2337-8XB30-1AK6 is a SIRIUS reversing contactor assembly — two mechanically interlocked contactors in one package, so forward and reverse motor runs can't energise simultaneously. It's sized S2 and ships with two 3RT2037-1AK60 contactors pre-wired and interlocked. Rated 30 kW at 400 V AC-3 (65 A at 480 V, 62 A at 600 V), it handles reversing loads up to 50 hp on 460/480 V or 575/600 V supplies. The AC-3 switching frequency is 700 operations per hour maximum, so it's suited for frequent jogging or inching duty on conveyors, hoists, and pumps. ## Panel fit and wiring constraints Dimensions are 141 mm high, 120 mm wide, 130 mm deep — the depth is the dimension that sticks out from the DIN rail. That 50 mm² capacity on the main lug means it can take a single larger feed without pigtailing.","metaTitle":"Siemens 3RA2337-8XB30-1AK6 reversing contactor assembly","metaDescription":"Siemens SIRIUS reversing contactor assembly 3RA2337-8XB30-1AK6, 30 kW at 400 V AC-3, 65 A at 480 V. Active production, quoted to order.","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":"3RA2337-8XB30-1AK6","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, 110 V AC, 50 Hz / 120 V, 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","at AC-3 maximum":"700 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","at AC-3e maximum":"700 1/h","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":"110 V","at 500 V rated value":"37 kW","at 60 Hz rated value":"120 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":"3RT2037-1AK60","2 Of The Supplied Contactor":"3RT2037-1AK60","at AC-3 rated value maximum":"690 V","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"30 kW","Substance Prohibitance (Date)":"10/01/2014","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","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","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":"$273.05","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ec75abe862ce0778c0bf2664ecba42b0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=251173&mlfb=3RA2337-8XB30-1AK6"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2337-8XB30-1AK6","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/3RA2337-8XB30-1AK6 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}}