{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2036-3AG20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2036-3AG20","canonicalUrl":"https://aoctrl.com/siemens/3RT2036-3AG20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2036-3AG20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S2, 3RT2036-3AG20, 52 A at 480 V AC-3, 10 hp at 230 V, spring-type terminals, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RT2036-3AG20 is a Size S2 power contactor rated for 52 A at 480 V in AC-3 duty, and 10 hp at 230 V for motor starting. The contactor snaps onto standard 35 mm DIN rail (DIN EN 60715) and can be mounted in any orientation within ±180° rotation on a vertical surface, plus ±22.5° tilt forward or backward. Panel space is tight? The 3RT2036-3AG20 footprint is 55 mm wide, 114 mm tall, and 130 mm deep. That 6 mm side gap is unusually tight — you can pack contactors side-by-side without the usual 10 mm air gap, which helps when you're squeezing three of these into a 200 mm wide enclosure. That covers most non-condensing indoor panels and unheated warehouses. ## Switching performance and auxiliary contacts The contactor carries 18 auxiliary contacts, configurable as 1 NO + 1 NC by default (the \"18...1\" designation means 18 terminals, 1 auxiliary block). The auxiliary contacts are rated for 10 A at 24 V, 2 A at 48 V or 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, 3 A at 400 V, and 0.6 A at 440 V — so a 24 VDC PLC output can drive the coil directly, and the aux contacts can switch a 24 VDC pilot light without a relay interposer. Switching frequency depends on the duty cycle: up to 1000 operations per hour in AC-1 (resistive loads), 800/h in AC-3 (motor starting), 600/h in AC-2 (slip-ring motors), and 250/h in AC-4 (plugging/inching). That AC-3 figure of 800/h is typical for a conveyor line cycling every 4.5 seconds — fine for most material handling, but if you're running a press brake that cycles every 2 seconds, you'll need the AC-4 rating to hold up. Arcing time is 10 to 20 ms, and the make/break time on AC is 10 to 18 ms. That's fast enough for most motor control circuits; the arc extinguishes within one half-cycle at 50 Hz. If you're comparing against the smaller-frame 3RT2016-1AG62 (Size S0, 40 A at 480 V), the 3RT2036-3AG20 (Size S2, 52 A at 480 V) is a frame size up. The S2 is physically larger — 55 mm wide vs 45 mm for S0 — so it won't drop into a panel drilled for the S0 footprint without a new DIN rail bracket or adapter plate. The terminal type also differs: the 3RT2036-3AG20 uses spring-type terminals, while the 3RT2016-1AG62 uses screw terminals. If your panel wiring is already terminated with ferrules, the spring clamp is faster; if it's ring-tongue terminals, you'll need to cut and re-ferrule.","metaTitle":"Siemens 3RT2036-3AG20 SIRIUS Power Contactor, 52 A at 480 V,","metaDescription":"Siemens SIRIUS 3RT2036-3AG20 power contactor, Size S2, 52 A at 480 V AC-3, 10 hp at 230 V. Spring-type terminals, snap-on DIN rail mount. Current lifecycle stage, available to orde","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":"Spring-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 ... 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":"110 V","at 500 V rated value":"2 A","at 60 Hz rated value":"110 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":"spring-loaded 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":"Spring-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 ... 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)","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":"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":"https://cdn.aoctrl.com/a937c2fa801b2ded5114938d3ab4c045.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=274106&mlfb=3RT2036-3AG20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2036-3AG20/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of the 3RT2036-3AG20?","answer":"The contactor measures 55 mm wide, 114 mm high, and 130 mm deep. It requires 10 mm clearance upward, forward, and downward, and only 6 mm to the side."},{"question":"What is the AC-3 motor rating at 480 V?","answer":"The 3RT2036-3AG20 is rated for 52 A at 480 V in AC-3 duty, and 10 hp at 230 V. That covers most 10–15 hp three-phase motors at 480 V."},{"question":"Does the 3RT2036-3AG20 use screw or spring terminals?","answer":"The magnet coil and main contacts use spring-type terminals. No screwdriver needed for the coil wiring — just strip the wire to 10 mm and push it in."},{"question":"Where can I buy the 3RT2036-3AG20 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is published here."},{"question":"Will the 3RT2036-3AG20 drop into a panel designed for the 3RT2016-1AG62?","answer":"No — the 3RT2036-3AG20 is a Size S2 frame (55 mm wide) versus the S0 frame (45 mm wide) of the 3RT2016-1AG62. The wider footprint and different terminal type (spring vs screw) mean you'll need to adjust the DIN rail mounting and re-terminate any ring-tongue wiring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2036-3AG20","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/3RT2036-3AG20 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}}