{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-1AL20-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-1AL20-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-1AL20-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1AL20-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S2, 3RT1035-1AL20-1AA0, 22 kW at 500 V AC-3, screw-type terminals, 55 mm width, DIN EN 50022 rail mount.","salesMarkdown":"The Siemens SIRIUS 3RT1035-1AL20-1AA0 is a Size S2 power contactor rated for motor switching up to 22 kW at 500 V in AC-3 duty and 18.5 kW at 400 V in AC-2 duty. The AC-3 rating of 22 kW at 500 V governs motor switching for standard squirrel-cage induction motors — that's the figure to match against your motor nameplate. At 400 V AC-2 (slip-ring motors or heavy jogging duty) it delivers 18.5 kW, and at 690 V it handles 11.4 kW. The coil draws 10 A at 24 V rated value, 6 A at 230 V, and 3 A at 400 V — these are the pickup currents; the holding current is lower. Mechanical life is rated at 10,000,000 operations typical, with maximum operating rates of 1,200 cycles/hour in AC-1, 1,000 in AC-3, and 300 in AC-4. Main circuit terminals accept solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and max 2x (0.75 to 4 mm²). The coil terminals accept 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded. All are screw-type — no spring-cage option on this variant. The 55 mm width and 112 mm height fit standard S2 contactor spacing; depth is 115 mm including coil terminals.","metaTitle":"Siemens SIRIUS 3RT1035-1AL20-1AA0 Power Contactor, Size S2,","metaDescription":"Siemens SIRIUS 3RT1035-1AL20-1AA0 Size S2 power contactor. 22 kW at 500 V AC-3, 18.5 kW at 400 V AC-2. Screw terminals, DIN rail mount. Current lifecycle stage. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"115 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 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":"1 200 1/h","at AC-2 maximum":"600 1/h","at AC-3 maximum":"1 000 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":"22 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":"18.5 kW","at AC-4 at 400 V rated value":"35 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":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 125 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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 (0.5 ... 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)","Thermal Short-Time Current Limited To 10 S":"400 A","Finely Stranded Without Core End Processing":"2x (0.75 ... 16 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=301797&mlfb=3RT1035-1AL20-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1AL20-1AA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 3RT1035-1AL20-1AA0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time; the part is sourced through independent distribution channels."},{"question":"What are the key motor ratings for this contactor?","answer":"AC-3 duty: 22 kW at 500 V, 18.5 kW at 400 V AC-2, and 11.4 kW at 690 V. The AC-3 rating is the one to match against standard induction motor loads."},{"question":"What conductor sizes does the screw terminal accept?","answer":"Main circuit solid: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded: 2x (0.75 to 25 mm²). Coil terminals: 2x (0.5 to 1.5 mm²) solid or 2x (0.75 to 2.5 mm²) stranded."},{"question":"Will 3RT1035-1AL20-1AA0 drop into a panel designed for 3RT5036-1AP00?","answer":"Both are Size S2 contactors on the same DIN-rail footprint, so the mechanical mounting and panel cutout are identical. The terminal layout and coil ratings differ — verify the coil voltage and auxiliary contact configuration against your schematic before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-1AL20-1AA0","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/3RT1035-1AL20-1AA0 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}}