{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2036-1AQ20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2036-1AQ20","canonicalUrl":"https://aoctrl.com/siemens/3RT2036-1AQ20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2036-1AQ20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S2, 3RT2036-1AQ20, 52 A at 480 V AC-3, screw-type terminals, auxiliary switch, DIN rail mount.","salesMarkdown":"The Siemens 3RT2036-1AQ20 is a SIRIUS Size S2 power contactor rated for 52 A at 480 V in AC-3 duty — the motor-switching rating that governs real-world induction motor loads up to that current. It carries an auxiliary switch block factory-installed, so you get one less add-on to spec and wire into the control circuit. Mounting is screw-fixed or snap-on onto 35 mm DIN rail per DIN EN 60715, with generous position flexibility: ±180° rotation on a vertical surface and ±22.5° tilt forward or backward. That means it fits into tight retrofit panels where the rail is already populated and you cannot reorient the whole assembly. Dimensions are 130 mm deep, 114 mm tall, and 55 mm wide — the S2 footprint that matches the SIRIUS 3RT2 family. The 55 mm width is three standard 18 mm module slots, so it occupies predictable DIN space in a multi-contactor lineup. The headline AC-3 rating of 52 A at 480 V is the number that determines whether this contactor handles a given three-phase motor. AC-3 covers starting and plugging of squirrel-cage motors — the most common duty in conveyor, pump, and fan panels. For resistive loads (AC-1), the maximum operating rate is 1 000 switching cycles per hour; for AC-3 it is 800 cycles per hour, and for the heavier AC-4 duty (inching, plugging) it drops to 250 cycles per hour. These rates tell you the thermal recovery time between operations — useful when sizing for a frequent-start application like a crane or a press. The auxiliary contact ratings cover control-voltage switching: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V. If your PLC output drives the contactor coil through an interposing relay, these numbers confirm the auxiliary contacts can handle the pilot-duty load without welding. The 60 °C ceiling is typical for a contactor in a ventilated enclosure; if your panel sits near a furnace or in a Middle East summer, derate the continuous current above 40 °C per the manufacturer's thermal curve. Main contact wiring accepts two conductors per terminal: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded. The magnet coil uses screw-type terminals — no spring-cage on the coil side, so factor in screwdriver access during panel build. That is the minimum air gap to adjacent metalwork or another contactor. Arc duration is 10 to 20 ms, and closing time (AC coil) is 10 to 18 ms.","metaTitle":"Siemens 3RT2036-1AQ20 SIRIUS Power Contactor, 52 A at 480 V","metaDescription":"Siemens 3RT2036-1AQ20 SIRIUS power contactor, Size S2, 52 A at 480 V AC-3. Screw terminals, auxiliary switch included. DIN rail mount. Current production. Sourced to order against","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":"0.36","at 60 Hz":"0.39","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":"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":"10 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":"500 V","at 500 V rated value":"2 A","at 60 Hz rated value":"500 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":"15 hp","at 220/230 V rated value":"15 hp","at 460/480 V rated value":"40 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":"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":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=228130&mlfb=3RT2036-1AQ20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2036-1AQ20/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings of 3RT2036-1AQ20?","answer":"The main AC-3 motor-switching rating is 52 A at 480 V. It is a Size S2 contactor with screw terminals, an auxiliary switch block, and a mechanical life of 10 000 000 cycles. Dimensions are 130 mm deep × 114 mm tall × 55 mm wide."},{"question":"Where can I buy 3RT2036-1AQ20 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for volume or single-unit requirements."},{"question":"Will 3RT2036-1AQ20 drop into a panel specified around 3RT2016-1AG62?","answer":"The 3RT2036-1AQ20 is a Size S2 contactor (55 mm wide, 130 mm deep), while the 3RT2016-1AG62 is a smaller Size S0 frame. The S2 is physically larger and will not fit the same DIN footprint or panel cutout without re-drilling and re-wiring the main power conductors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2036-1AQ20","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/3RT2036-1AQ20 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}}