{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AQ64","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AQ64","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AQ64","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AQ64","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1026-1AQ64, 11 kW at AC-2 400 V, 15.5 A AC-4, screw terminals, 45 mm width, 140 mm depth.","salesMarkdown":"## What it is and what it handles The Siemens 3RT1026-1AQ64 is a SIRIUS power contactor in the S0 frame size, built for switching motor loads and resistive circuits in industrial control panels. It's rated 11 kW at AC-2 duty (400 V) for slip-ring motors and 15.5 A at AC-4 for reversing or inching duty — the AC-4 number is the one that matters for frequent plugging or jogging applications because it accounts for the higher arcing stress. The contactor snaps onto a 35 mm DIN rail per EN 50022 or screws directly to a mounting plate, so it fits standard panel layouts without adapters. ## Coordination and protection For type 2 coordination (no damage to the contactor on a short circuit), Siemens calls for a gL/gG fuse rated 35 A. If you're running type 1 coordination (contactor may need replacement after a fault), the fuse can go up to 100 A. That 35 A fuse limit is what you size the branch circuit protection around when you want the contactor to survive a fault and keep running. Pollution degree 3 means it's rated for the conductive dust and humidity you'd see in a typical industrial enclosure, not a clean room. ## Where it lives in the panel The contactor measures 45 mm wide, 85 mm tall, and 140 mm deep — that's a compact S0 footprint that leaves room for auxiliary contact blocks on the side. Side-by-side mounting is allowed with a 6 mm gap, so you can pack multiple contactors on a rail without derating. The front of the enclosure is IP20 (finger-safe), but the terminal area is IP00, so it needs to live inside a cabinet, not out in the weather. Operating temperature range is -25 to +60 °C, which covers most plant-floor conditions short of a foundry or freezer.","metaTitle":"Siemens 3RT1026-1AQ64 SIRIUS Power Contactor, S0, 11 kW AC-2","metaDescription":"Siemens 3RT1026-1AQ64 SIRIUS power contactor, size S0, 11 kW at AC-2 400 V, 15.5 A AC-4. Screw terminals, 35 mm DIN rail mount. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"140 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"85 mm","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Size of contactor":"S0","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":"220 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"264 V","at 690 V rated value":"11 kW","Instantaneous Contact":"2","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"11 kW","at AC-4 at 400 V rated value":"15.5 A","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 100 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","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","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"40 A","Apparent holding power of magnet coil at AC":"7.5 V·A","Apparent pick-up power of magnet coil at AC":"69 V·A","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.76","Inductive power factor with the holding power of the coil":"0.28","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","Of The Contactor With Added Electronics-Compatible 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=95928&mlfb=3RT1026-1AQ64","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AQ64/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1026-1AQ64 and how do I get a price?","answer":"This part is sourced to order through independent distribution. Submit an RFQ with the order code and quantity; availability and current pricing are confirmed at quote time."},{"question":"Will 3RT1026-1AQ64 drop into a panel that was specified around 3RT1023-1AL20 without rewiring?","answer":"Both are SIRIUS S0 frame contactors with the same 45 mm width and DIN rail mount, so the mechanical fit is the same. The wiring difference depends on the terminal ratings — the 3RT1026-1AQ64 uses screw terminals rated for up to 2x 4 mm² solid or 2x 10 mm² stranded on the main circuit, which covers most motor loads up to 11 kW. Check your existing wire sizes against those limits before assuming a drop-in swap."},{"question":"What compliance documentation does this brand provide for 3RT1026-1AQ64?","answer":"As a Siemens SIRIUS product, this contactor carries CE marking for the European market and is designed to meet IEC/EN 60947-4-1 standards for contactors and motor starters. RoHS and REACH compliance documentation is typically available from Siemens or through the supply chain upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AQ64","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/3RT1026-1AQ64 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}}