{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2338-8XE30-1NB3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2338-8XE30-1NB3","canonicalUrl":"https://aoctrl.com/siemens/3RA2338-8XE30-1NB3","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2338-8XE30-1NB3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing contactor assembly, 3RA2338-8XE30-1NB3, S2 frame, 65 A at 480 V, 37 kW at 400 V, screw-type terminals, DIN rail mount.","salesMarkdown":"## What this reversing assembly drops into The 3RA2338-8XE30-1NB3 is a SIRIUS reversing contactor assembly — two contactors mechanically interlocked in a single S2 frame, so it handles forward/reverse motor control without extra external wiring for the interlock. It ships with two contactors: 3RT2038-1NB30-0CC0 and 3RT2038-1NB30, both pre-assembled and wired for reversing duty — no need to source and build the pair yourself. ## Mounting and clearance — the numbers that matter for panel fit Width is 120 mm, height 141 mm, depth 130 mm — the S2 frame is compact enough to fit a standard 600 mm deep enclosure with room for wiring ducts. Clearance requirements: 10 mm upwards, forwards, downwards, and to the side; 0 mm backwards — so the back can sit flush against the mounting plate, but you need breathing room on every other face for heat dissipation and arc flash. ## Termination and wire range — screw terminals, no special tooling Main circuit terminals accept 2x (1... 35 mm²) solid or 1x (1... 50 mm²) — covers everything from 10 AWG to 1/0 AWG for the power wiring. DC coil range is 20... 33 V — common for 24 VDC control systems with a tolerance band for voltage drop on long runs. ## Environmental and mechanical life Operating temperature range -25... +60 °C; storage range -55... +80 °C — rated for most industrial enclosures without active cooling, but derate if ambient exceeds 60 °C. Mechanical life of the contactor typical is 10,000,000 operations — the reversing assembly's mechanical interlock wears at the same rate as the contactors themselves. Vibration resistance: 12g at 5 ms and 7g at 10 ms AC — adequate for most machine-mounted applications, but not rated for extreme shock like stamping presses.","metaTitle":"Siemens 3RA2338-8XE30-1NB3 SIRIUS Reversing Contactor","metaDescription":"Siemens 3RA2338-8XE30-1NB3 SIRIUS reversing contactor assembly, 65 A at 480 V, 37 kW at 400 V. Screw terminals, S2 frame, DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Motor Starters"],"specifications":{"Depth":"130 mm","Solid":"2x (1 ... 35 mm²), 1x (1 ... 50 mm²)","Width":"120 mm","at AC":"12g / 5 ms, 7g / 10 ms","at DC":"20 ... 33 V","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 500 V rated value":"37 kW","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":"3RT2038-1NB30-0CC0","2 Of The Supplied Contactor":"3RT2038-1NB30","at AC-4 at 400 V rated value":"30 kW","Substance Prohibitance (Date)":"10/01/2014","Design Of The Surge Suppressor":"with varistor","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","closing power of magnet coil at DC":"23 W","holding power of magnet coil at DC":"1 W","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":"0","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/DC","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":"https://cdn.aoctrl.com/04547032b47ba12f2f5801576a50b02d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=181285&mlfb=3RA2338-8XE30-1NB3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2338-8XE30-1NB3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RA2338-8XE30-1NB3 and get a price?","answer":"Available through independent distribution against an RFQ."},{"question":"What is the depth of 3RA2338-8XE30-1NB3?","answer":"Depth is 130 mm, with width 120 mm and height 141 mm. The S2 frame fits standard 600 mm deep enclosures with clearance for wiring."},{"question":"What wire sizes does the main circuit accept?","answer":"Solid wire: 2x (1... 35 mm²); stranded: 1x (1... 50 mm²). Screw-type terminals — no special crimp tooling required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2338-8XE30-1NB3","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/3RA2338-8XE30-1NB3 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}}