{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AL20-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AL20-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AL20-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AL20-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-1AL20-1AA0 power contactor, S0 frame, 11 kW at 400 V AC-2, 50/60 Hz, screw terminals, IP20 front, 45 mm width.","salesMarkdown":"The coil operates at 50 Hz (0.8–1.1 × rated voltage) and 60 Hz (0.85–1.1 × rated voltage), so it works on either mains frequency without a coil swap. ## Mounting, wiring, and coordination Main circuit terminals are screw-type, accepting 2× (0.5–1.5 mm²), 2× (0.75–2.5 mm²), or max 2× (0.75–4 mm²) solid, and 2× (1–2.5 mm²), 2× (2.5–6 mm²), or max 2× 10 mm² stranded. AWG equivalents are 2× (16–12), 2× (14–10), or 1× 8 for the main contacts. For Type 2 coordination (no-weld after fault), the required backup fuse is gL/gG 35 A. For Type 1 coordination (welding allowed but no fire risk), the fuse can be gL/gG 100 A. This lets the panel designer choose the protection philosophy. ## Auxiliary contact ratings and life The built-in auxiliary contact is rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V for AC loads. DC ratings are 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. These cover typical PLC input and relay coil switching within the contactor's own control circuit. The front of the contactor carries an IP20 rating (finger-safe), while the terminal area is IP00 — the panel enclosure provides the overall protection.","metaTitle":"Siemens 3RT1026-1AL20-1AA0 SIRIUS Power Contactor","metaDescription":"Siemens 3RT1026-1AL20-1AA0 SIRIUS power contactor, S0 frame, 11 kW at 400 V AC-2, 50/60 Hz, screw terminals, IP20 front. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 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":"0.85 ... 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":"230 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"230 V","at 690 V rated value":"11 kW","Instantaneous Contact":"0","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":"8.4 V·A","Apparent pick-up power of magnet coil at AC":"64 V·A","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.72","Inductive power factor with the holding power of the coil":"0.24","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=149420&mlfb=3RT1026-1AL20-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AL20-1AA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AL20-1AA0","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/3RT1026-1AL20-1AA0 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}}