{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3AC20-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3AC20-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3AC20-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AC20-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-3AC20-ZX95 power contactor, size S0, 11 kW at 400 V AC-2, screw-type terminals, snap-on 35 mm DIN rail.","salesMarkdown":"Rated for 11 kW at 400 V in AC-2 duty (slip-ring motor starting) and 15.5 A at 400 V in AC-4 duty (plugging/inching), this contactor handles the high inrush and frequent switching cycles of demanding motor applications. The main circuit connects via screw-type terminals accepting 2x (0.25...2.5 mm²) solid or 2x (1...2.5 mm²) stranded, up to 2x 10 mm² maximum — sized for the S0 frame's current range. ## Key ratings in context At 500 V and 690 V, the contactor is rated for 11 kW in AC-3 duty (squirrel-cage motor starting), which covers the bulk of standard induction motor switching on 400/480 V and 690 V networks. Type 1 coordination allows a 100 A fuse. This tells the panel builder what upstream protection keeps the contactor repairable after a fault. Side-by-side mounting is permitted with zero clearance, so multiple contactors can pack tightly on the rail.","metaTitle":"Siemens 3RT1026-3AC20-ZX95 SIRIUS S0 Contactor, 11 kW AC-2","metaDescription":"Siemens SIRIUS 3RT1026-3AC20-ZX95 power contactor, size S0, 11 kW at 400 V AC-2. Active production. Screw terminals, snap-on DIN rail. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"90 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":"24 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"24 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 (0.25 ... 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=90361&mlfb=3RT1026-3AC20-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AC20-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative if I cannot source this exact order code?","answer":"The 3RT1034-1AN60-1AA0 is a higher-current SIRIUS contactor in a larger frame; it will not drop into the same panel footprint without re-drilling the mounting rail or widening the enclosure cutout. For the same S0 frame size and similar ratings, the 3RT1017-1AP01 is the closest peer, but verify the coil voltage and auxiliary configuration against your BOM before substituting."},{"question":"What is the depth of this contactor?","answer":"The depth is 90 mm from the mounting surface to the front of the terminal cover."},{"question":"What wire sizes does the main circuit accept?","answer":"The screw-type terminals accept 2x (0.25...2.5 mm²) solid or 2x (1...2.5 mm²) stranded conductors, with a maximum of 2x 10 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3AC20-ZX95","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/3RT1026-3AC20-ZX95 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}}