{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2036-1AC20-0UA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2036-1AC20-0UA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2036-1AC20-0UA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2036-1AC20-0UA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2036-1AC20-0UA0 power contactor, Size S2, 52 A AC-3 at 480 V, screw-type coil terminals, auxiliary switch, screw and snap-on mounting on 35 mm DIN rail.","salesMarkdown":"## Sourcing reality — current lifecycle, no LTB signal The 3RT2036-1AC20-0UA0: Sourced to order against your BOM quantity through independent distribution. ## Panel fit — DIN-rail footprint and clearances That 6 mm side gap is tight — adjacent devices or wire troughs need to respect it for arc flash and cooling. Useful for angled subpanels or machinery enclosures where the rail isn't perfectly vertical. ## AC-3 current at 480 V — the number that matters for motor switching Rated 52 A at 480 V in AC-3 duty — that's the motor-switching rating, not the resistive AC-1 figure. For a 480 V motor load, this contactor handles up to 52 A of making and breaking current, which covers most 30–40 HP three-phase motors at that voltage. The AC-1 maximum switching rate is 1,000 operations per hour; AC-3 drops to 800/h, and AC-4 (plugging/inching) is 250/h — the arc erosion at higher duty cycles limits the mechanical life. Mechanical life typical is 10 million operations — that's the unloaded cycle count. Electrical life under AC-3 load will be lower; the arcing time of 10–20 ms per break is the window where contact wear happens. ## Auxiliary contact block — integrated, not add-on Comes with an auxiliary switch built in — 1 NO + 1 NC configuration (18... 1 meaning 18 terminals for NO, 1 for NC on the main contact block). That covers most PLC output cards and relay coils without an intermediate interface. No spring-cage option on this variant; factor in screw-torque tooling for the panel build.","metaTitle":"Siemens 3RT2036-1AC20-0UA0 SIRIUS Power Contactor","metaDescription":"Siemens 3RT2036-1AC20-0UA0 SIRIUS power contactor, Size S2, 52 A AC-3 at 480 V. Screw terminals, auxiliary switch included. Current lifecycle stage.","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":"3RT2036-1AC20-0UA0","Height":"114 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.36","at 60 Hz":"0.39","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"6 mm","description":"contactor, NEMA version, 25 HP, 460 / 575 V, 3-pole, 24 V AC, 50/60 Hz, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S2","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"600 1/h","at AC-3 maximum":"800 1/h","at AC-4 maximum":"250 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":"800 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":"7.5 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"52 A","at 50 Hz rated value":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 V","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":"3 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"15 hp","at 460/480 V rated value":"25 hp","at 575/600 V rated value":"25 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":"12 W","at AC-2 at 400 V rated value":"22 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"41 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":"61.6 A","at AC-5b up to 400 V rated value":"41.5 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 80A (690V,100kA), aM: 50A (690V,100kA), BS88: 63A (415V,80kA)","Without Load Current Share Typical":"17.2 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 160 A (690 V, 100 kA), aM: 80 A (690 V, 100 kA), BS88: 125 A (415 V, 80 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"4 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":"937 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"697 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"468 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"282 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"229 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":"25 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":"$82.55","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e58608813620d0eb3e4e666dbde935aa.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=300212&mlfb=3RT2036-1AC20-0UA0"},"ai":{"faq":[{"question":"What are the key ratings for 3RT2036-1AC20-0UA0?","answer":"The headline rating is 52 A at 480 V in AC-3 duty (motor switching). It's a Size S2 frame with screw-type coil terminals, an integrated auxiliary switch (1 NO + 1 NC), and mechanical life of 10 million operations."},{"question":"What compliance documentation does Siemens provide for 3RT2036-1AC20-0UA0?","answer":"As a current-production SIRIUS contactor, it carries the standard Siemens declarations: CE marking for the European market, UL/CSA listings for North America, and RoHS/REACH compliance. The specific certification numbers are on the product label and in the Siemens Industry Online Support download for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2036-1AC20-0UA0","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/3RT2036-1AC20-0UA0 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}}