{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3AL24-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3AL24-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3AL24-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AL24-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1026-3AL24-1AA0, 11 kW AC-2 at 400 V, 230 V 50/60 Hz coil, screw-type main terminals, IP20 front, current production.","salesMarkdown":"The Siemens SIRIUS 3RT1026-3AL24-1AA0 is a size S0 power contactor rated for motor switching at 11 kW in AC-2 duty at 400 V. For general resistive loads (AC-12) it handles 10 A. ## Coil and control The coil is wound for 230 V at both 50 Hz and 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. That means at 50 Hz the coil picks reliably down to about 184 V and drops out below that; at 60 Hz the pickup threshold is about 195 V. Two instantaneous auxiliary contacts (1 NO + 1 NC) are built in — enough for a basic interlock or status feedback without an add-on block. Side-by-side mounting is allowed with zero gap, but the side clearance spec of 6 mm to grounded metal is the minimum for arc flash containment. Front face is IP20 (finger-safe), terminals are IP00 — live parts are exposed once the wire is landed, so cover the panel or use shrouded terminal covers in service areas. ## Wiring and protection Main circuit terminals are screw-type, accepting 2x (1 to 2.5 mm²) solid or 2x (2.5 to 6 mm²) stranded, with a max of 2x 10 mm² per terminal. AWG equivalents: 2x (16 to 12) solid, 2x (14 to 10) stranded, single 8 AWG. ## Environmental limits","metaTitle":"Siemens 3RT1026-3AL24-1AA0 SIRIUS Power Contactor, S0, 11 kW","metaDescription":"Siemens SIRIUS 3RT1026-3AL24-1AA0 power contactor, size S0, 11 kW AC-2 at 400 V, 230 V 50/60 Hz coil, screw terminals, IP20 front. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"140 mm","Solid":"2x (0.25 ... 2.5 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":"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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded 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","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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=309268&mlfb=3RT1026-3AL24-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AL24-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RT1026-3AL24-1AA0?","answer":"The 3RT1034-1AN60-1AA0 is a larger S2 frame with higher ratings and will not fit the same DIN footprint without additional space. The 3RT1017-1AP01 is a smaller S00 frame and cannot carry the 11 kW AC-2 load. There is no direct form-fit-function replacement within the SIRIUS S0 family at this rating."},{"question":"What are the key dimensions for panel layout?","answer":"Width is 45 mm, height is 85 mm, depth is 140 mm. The S0 frame mounts on 35 mm DIN rail per EN 50022 with zero side gap allowed for side-by-side mounting."},{"question":"What conductor sizes does the main terminal accept?","answer":"Screw terminals accept 2x (1 to 2.5 mm²) solid or 2x (2.5 to 6 mm²) stranded, max 2x 10 mm². AWG equivalents: 2x (16 to 12) solid, 2x (14 to 10) stranded, single 8 AWG."},{"question":"What fuse coordination is required?","answer":"For Type 2 coordination (no weld-stick), use gL/gG 35 A. For Type 1 coordination (allow contactor replacement after fault), use gL/gG 100 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3AL24-1AA0","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/3RT1026-3AL24-1AA0 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}}