{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2038-1AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2038-1AH00","canonicalUrl":"https://aoctrl.com/siemens/3RT2038-1AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2038-1AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT2038-1AH00, S2 frame, 65 A at 480 V AC-3, screw-type coil terminals, 24 VDC coil, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"## SIRIUS S2 Power Contactor for Motor Loads Its headline rating is 65 A at 480 V in AC-3 duty — the motor-switching category per IEC 60947-4-1 — meaning it handles induction motors up to roughly 50 hp at that voltage without welding the main contacts during starting inrush. The coil is 24 VDC, terminated at screw-type terminals, and the contactor carries an auxiliary switch block (18...1 configuration) for status feedback to the PLC or safety circuit. Mechanical life is rated at 10 million operations typical, with electrical endurance varying by duty: 700 cycles/hour at AC-1 (resistive), 500 at AC-3 (motor start/run), and 150 at AC-4 (plugging/reversing). The S2 frame footprint is 55 mm wide, 114 mm tall, and 130 mm deep — a compact envelope for a 65 A motor-rated contactor that fits standard 600 mm deep enclosures with room for wiring gutters. These are the minimum air gaps to adjacent metalwork or other devices for heat dissipation and arc containment. Wire termination: the main power terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded copper — sized for the control wiring and auxiliary contacts, not the main power lugs (which are typically larger on an S2 frame). The coil terminals are screw-type, compatible with ferruled stranded wire for reliable connection in high-vibration environments. ## Environmental Range Operating temperature: -25 to +60 °C. Storage temperature: -55 to +80 °C. The contactor is rated for indoor use in a standard industrial enclosure; no IP rating is listed on this record, so it requires panel protection from dust and moisture.","metaTitle":"Siemens 3RT2038-1AH00 SIRIUS Power Contactor, 65A at 480V, S","metaDescription":"Siemens 3RT2038-1AH00 SIRIUS power contactor, 65 A at 480 V AC-3, S2 frame, screw terminals, 24 VDC coil. Active production. Sourced to order against RFQ.","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","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","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-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 DIN 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 ... 1.5 mm²), 2x (0.75 ... 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","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":"screw-type 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":"Screw-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)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"5.7 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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 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 %","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,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/7304c24ea4db790205097ba41a85fa33.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=6330&mlfb=3RT2038-1AH00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2038-1AH00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT2038-1AH00 and what is the lead time?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or lead-time number published here."},{"question":"What is the closest functional second-source for 3RT2038-1AH00?","answer":"The closest peer in the same SIRIUS family is the 3RT2016-1AD02, which is a smaller frame (S0 vs S2) and lower current rating. It will not drop into a panel wired for the S2 frame without rewiring the main power lugs and checking the DIN rail space — the S0 is narrower (45 mm vs 55 mm) and shorter. For a direct functional replacement at 65 A, the 3RT2038-1AH00 is the correct S2-frame part; the S0 frame tops out at lower currents."},{"question":"What compliance documentation does Siemens provide for 3RT2038-1AH00?","answer":"As a current-production Siemens SIRIUS contactor, the 3RT2038-1AH00 is covered by the standard CE declaration of conformity, RoHS and REACH compliance statements, and UL/CSA listing per the IEC 60947-4-1 standard for contactors. Specific certificate numbers are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2038-1AH00","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/3RT2038-1AH00 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}}