{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1036-3AL20-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1036-3AL20-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1036-3AL20-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1036-3AL20-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 3RT1036-3AL20-1AA0, screw-type terminals, 22 kW at 400 V AC-2, 30 kW at 500 V, 55 mm width.","salesMarkdown":"It is rated for 22 kW at 400 V in AC-2 duty (slip-ring motors, reversing starts) and 30 kW at 500 V, making it a fit for medium-horsepower pump, fan, and conveyor drives. The coil accepts 230 V at 50 Hz and 230 V at 60 Hz, with an operating range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz — so it holds in during brownout conditions down to roughly 184 V. The headline motor ratings are 22 kW at 400 V AC-2 and 11.4 kW at 690 V AC-2. AC-2 is the duty for slip-ring motors and frequent reversing — the contactor sees inrush at every start but not the full locked-rotor current of a direct-on-line squirrel-cage start. If your load is standard squirrel-cage (AC-3), the contactor will handle it, but the AC-3 kW rating is not explicitly listed; the AC-2 figure is the conservative one to spec by. At 500 V the rating climbs to 30 kW, which suggests the contactor is wound for higher-voltage distribution. Switching frequency maxes at 1 000 cycles/hour for AC-1 (resistive), 400 for AC-2, 800 for AC-3, and 300 for AC-4 (plugging/inching). For a conveyor line cycling once per minute, that is well within the AC-3 ceiling of 800/hour. Auxiliary contacts are rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V — sufficient for signaling back to a PLC input card or a pilot light. The screw terminals accept 2x (0.25 to 2.5 mm²) solid or 2x (0.75 to 25 mm²) stranded, so panel wiring with standard 1.5 mm² or 2.5 mm² control cable is straightforward. Dimensions are 55 mm wide, 112 mm high, and 115 mm deep — a standard S2 footprint that fits alongside other SIRIUS S2 components on the same DIN rail. The screw terminals are accessible from the front, and the IP20 front face allows safe probing during commissioning with the panel door open. For a panel near a furnace or in a non-conditioned enclosure in a hot climate, the 60 °C ceiling is the limit to watch — above that, derate the continuous current.","metaTitle":"Siemens 3RT1036-3AL20-1AA0 SIRIUS Power Contactor, S2, 22 kW","metaDescription":"Siemens SIRIUS 3RT1036-3AL20-1AA0 power contactor, size S2. Rated 22 kW at 400 V AC-2, 30 kW at 500 V. Screw terminals, 55 mm wide. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"55 mm","at AC":"7 ... 20 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"400 1/h","at AC-3 maximum":"800 1/h","at AC-4 maximum":"300 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S2","Solid Or Stranded":"2x (0.75 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"230 V","at 500 V rated value":"30 kW","at 60 Hz rated value":"230 V","at 690 V rated value":"11.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"22 kW","at AC-4 at 400 V rated value":"41 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"16 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"22 kW","at 690 V at 60 °C rated value":"66 kW","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 80 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 160 A","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.25 ... 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)","Thermal Short-Time Current Limited To 10 S":"400 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","apparent holding power of magnet coil at AC":"15 VA","apparent pick-up power of magnet coil at AC":"170 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.76","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.35","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","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=247055&mlfb=3RT1036-3AL20-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1036-3AL20-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for this contactor?","answer":"The closest functional peer is the 3RT1036-1AB00, which shares the same S2 frame size and similar motor ratings. The key difference is the terminal type: the -3AL20-1AA0 uses screw-type terminals, while the -1AB00 uses spring-cage terminals. Panel wiring will need to account for the different termination method, but the footprint and DIN rail mounting are identical."},{"question":"Will this contactor drop into a panel designed for 3RT1036-1AB00?","answer":"Yes, mechanically it will. Both are size S2 with the same 55 mm width and DIN rail mounting. The difference is terminal type — screw versus spring-cage. If the panel was wired for spring-cage terminals, you will need to re-terminate the wires with ferrules or bare ends for the screw clamp. The footprint and rail position are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1036-3AL20-1AA0","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/3RT1036-3AL20-1AA0 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}}