{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2037-3AF06","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2037-3AF06","canonicalUrl":"https://aoctrl.com/siemens/3RT2037-3AF06","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2037-3AF06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 3RT2037-3AF06, 65 A at 480 V AC-3, screw and snap-on 35 mm DIN rail mounting, spring-type terminals.","salesMarkdown":"## DIN Rail Integration and Panel Fit The 75 mm width and 114 mm height with 130 mm depth mean it occupies a standard three-module footprint on the rail — plan for that slot width in the enclosure layout. Clearance: 10 mm upward and forward, 6 mm at the sides, 10 mm downward. Size S2 is the mechanical frame; the 75 mm width is the key dimension for rail fill factor. ## Ratings and Operating Conditions Coil draws 6 A at 24 V rated value, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. At 230 V rated value the contactor carries 10 hp. The coil operates on 50 Hz at 110 V. The magnet coil uses spring-type terminals — no screw clamping, which speeds wiring and resists vibration loosening. Main contact arcing time spans 10 to 20 ms, and the total break time at AC is 10 to 18 ms. Mechanical life of the contactor typical is 10,000,000 operations. Switching frequency maximums: 800 cycles/h at AC-1, 400 at AC-2, 700 at AC-3, 200 at AC-4, and 700 at AC-3e. Accepts 2x (0.5 to 2.5 mm²) solid or stranded wire. No auxiliary switch included.","metaTitle":"Siemens 3RT2037-3AF06 SIRIUS Power Contactor, 65 A at 480 V","metaDescription":"Siemens SIRIUS 3RT2037-3AF06 power contactor, size S2, 65 A at 480 V AC-3. Current production. Screw & snap-on DIN rail mount. Quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Width":"75 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":"Spring-type terminals","at AC-1 maximum":"800 1/h","at AC-2 maximum":"400 1/h","at AC-3 maximum":"700 1/h","at AC-4 maximum":"200 1/h","lifecycle_stage":"current","Auxiliary Switch":"No","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":"700 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":"6 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":"10 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":"110 V","at 500 V rated value":"2 A","at 600 V rated value":"52 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":"20 hp","at 460/480 V rated value":"50 hp","at 575/600 V rated value":"50 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":"11.4 W","at AC-2 at 400 V rated value":"30 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":"70.4 A","at AC-5b up to 400 V rated value":"53.9 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 125A (690V,100kA), aM: 63A (690V,100kA), BS88: 100A (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":"3.8 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":"1 055 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"730 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"520 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"336 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"272 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","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":"25 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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/5ba0d98ceb7dd2d9e60e09bed92e14f6.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=388512&mlfb=3RT2037-3AF06","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2037-3AF06/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RT2037-3AF06's motor-switching rating at 480 V?","answer":"The 3RT2037-3AF06 is rated for 65 A at 480 V in AC-3 duty, which is the standard motor-switching category for squirrel-cage induction motors. This rating determines the maximum motor load it can switch — typically a 30–40 hp motor at 480 V three-phase."},{"question":"What panel clearance is needed around the 3RT2037-3AF06?","answer":"Minimum clearances: 10 mm upward, 10 mm forward, 6 mm at the sides, and 10 mm downward. The contactor is 75 mm wide, 114 mm high, and 130 mm deep."},{"question":"Where can I buy the 3RT2037-3AF06 and how is it quoted?","answer":"The 3RT2037-3AF06 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for your volume requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2037-3AF06","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/3RT2037-3AF06 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}}