{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2038-3AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2038-3AH00","canonicalUrl":"https://aoctrl.com/siemens/3RT2038-3AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2038-3AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT2038-3AH00, Size S2, 65 A at 480 V AC-3, 3-pole, spring-type coil terminals, screw and snap-on 35 mm DIN rail.","salesMarkdown":"## SIRIUS Size S2 — 65 A at 480 V, spring-type coil terminals The 3RT2038-3AH00: The AC-3 rating governs the real-world motor start and run current; at 480 V it handles a 15 hp motor. The magnet coil uses spring-type terminals — tool-less wiring for the control circuit. That's another SKU I don't need for coil wiring: no ferrule crimp required on the coil side. ## Panel fit — 55 mm wide, 130 mm deep The contactor footprint is 55 mm wide by 114 mm high by 130 mm deep. The 55 mm width is the DIN-rail footprint — it occupies three standard 18 mm module positions plus a 1 mm air gap. The 130 mm depth means the contactor body extends well behind the rail; check the enclosure depth before committing. These are the minimum air gaps to adjacent metalwork or other devices for heat dissipation and arc flash clearance. The arcing time is 10... 20 ms — the side clearance of 6 mm is the tightest constraint; keep that side free of wiring ducts. ## Lifecycle and sourcing — active production, quoted to order The lifecycle stage is current — Siemens still manufactures this part.","metaTitle":"Siemens 3RT2038-3AH00 SIRIUS Power Contactor, 65 A at 480 V","metaDescription":"Siemens 3RT2038-3AH00 SIRIUS power contactor, Size S2, 65 A at 480 V AC-3. Screw and snap-on 35 mm DIN rail. Spring-type coil terminals.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Width":"55 mm","at AC":"10 ... 18 ms","title":"3RT2038-3AH00","Height":"114 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.37","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"6 mm","description":"power contactor, AC-3e/AC-3, 80 A, 37 kW / 400 V, 3-pole, 48 V AC, 50 Hz, auxiliary contacts: 1 NO + 1 NC, main circuit: screw terminal, control and auxiliary circuit: spring-loaded terminal, size: S2","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"700 1/h","at AC-2 maximum":"350 1/h","at AC-3 maximum":"500 1/h","at AC-4 maximum":"150 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715","at AC-3e maximum":"500 1/h","For Main Contacts":"18 ... 1","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 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"15 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"65 A","at 50 Hz rated value":"48 V","at 500 V rated value":"2 A","at 600 V rated value":"62 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"5 hp","at 200/208 V rated value":"20 hp","at 220/230 V rated value":"25 hp","at 460/480 V rated value":"50 hp","at 575/600 V rated value":"60 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"17.1 W","at AC-2 at 400 V rated value":"37 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"55 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2014","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 1)","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"79.2 A","at AC-5b up to 400 V rated value":"66.4 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 160A (690V,100kA), aM: 80A (690V,100kA), BS88: 125A (415V,80kA)","Without Load Current Share Typical":"16 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)","at AWG cables for auxiliary contacts":"2x (20 ... 14)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"5.7 W","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)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"1 298 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"898 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"640 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"414 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"333 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"35 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/c82febec72cdae6e27cb4a0b31fbef3b.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=70474&mlfb=3RT2038-3AH00"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2038-3AH00","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/3RT2038-3AH00 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}