{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2036-1AH04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2036-1AH04","canonicalUrl":"https://aoctrl.com/siemens/3RT2036-1AH04","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2036-1AH04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S2, 3RT2036-1AH04, screw-type terminals, 52 A at 480 V AC-3, snap-on 35 mm DIN rail mount.","salesMarkdown":"## What the 52 A at 480 V rating means for your motor circuit The Siemens 3RT2036-1AH04 is a SIRIUS Size S2 power contactor rated 52 A at 480 V — that is the AC-3 motor-switching current, meaning it handles a 3-phase induction motor drawing up to 52 A during starting and running, without welding the main contacts on inrush. For a 480 V supply, that translates to roughly a 30–40 hp motor, depending on the exact full-load current curve. The contactor snaps onto a 35 mm DIN rail per DIN EN 60715 and measures 55 mm wide by 114 mm high by 174 mm deep — the 174 mm depth is the dimension that matters most when planning gland-plate clearance or a shallow enclosure back-panel. ## Mounting and integration — DIN rail, screw terminals, position flexibility The 6 mm side gap is tighter than the vertical ones — plan the DIN-rail spacing accordingly to avoid heat buildup between adjacent contactors. Main contact arrangement is 3-pole (18...1 designation), and the coil terminals are screw-type. Wire capacity accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded. Maximum operating frequency varies by duty: 1,000 cycles/hour at AC-1 (resistive), 800 at AC-3 (motor start/run), 600 at AC-2 (slip-ring motor), and 250 at AC-4 (plugging/inching). The AC-3e rating matches the AC-3 figure at 800 cycles/hour. If your application involves frequent jogging or reversing, the AC-4 limit of 250 cycles/hour is the governing spec — exceeding it accelerates contact wear. Arcing time is 10 to 20 ms, and the make/break time at AC is 10 to 18 ms. These are fast enough for most motor-control circuits but matter for coordination with upstream short-circuit protection — the arc clears before the breaker's instantaneous trip can see the fault current. ## Lifecycle and sourcing — active production, quoted to order","metaTitle":"Siemens 3RT2036-1AH04 SIRIUS Power Contactor, 52 A at 480 V","metaDescription":"Siemens 3RT2036-1AH04 SIRIUS power contactor, Size S2, rated 52 A at 480 V AC-3. Screw terminals, DIN rail mount. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"174 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":"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":"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":"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":"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":"52 A","at 50 Hz rated value":"48 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":"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":"16 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 / 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=141580&mlfb=3RT2036-1AH04","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2036-1AH04/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions — width, height, depth?","answer":"Width is 55 mm, height is 114 mm, and depth is 174 mm. The 174 mm depth is the critical dimension for enclosure back-panel clearance."},{"question":"What is the AC-3 current rating at 480 V?","answer":"Rated 52 A at 480 V in AC-3 duty (motor switching). That is the headline rating for sizing this contactor to a 3-phase motor load."},{"question":"Where can I buy 3RT2036-1AH04 and get current pricing?","answer":"This part 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 a firm price and lead time."},{"question":"What compliance documentation is available for 3RT2036-1AH04?","answer":"As a Siemens SIRIUS product, it carries CE marking and is designed to meet IEC/EN 60947-4-1. RoHS and REACH declarations are available from the manufacturer's documentation portal. UL and CSA listings are typical for this series but should be confirmed per specific catalog variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2036-1AH04","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/3RT2036-1AH04 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}}