{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3AF04-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3AF04-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3AF04-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AF04-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-3AF04-ZW95 power contactor, size S0, 3 NO main contacts, 11 kW at 400 V AC-3, screw terminals, 45 mm width, for DIN rail mounting.","salesMarkdown":"The contactor carries 3 NO main contacts and no NC main contacts, with two instantaneous auxiliary contacts available for feedback or interlock wiring. Rated at 11 kW at 400 V AC-3 and also 11 kW at 690 V AC-3, this contactor handles standard three-phase induction motors up to that power. The AC-4 rating of 15.5 A at 400 V covers reversing or inching duty where the contactor makes and breaks stalled rotor current — a tougher thermal cycle than AC-3. For type 2 coordination (no weld risk on fault), use a 35 A gL/gG fuse upstream. The contactor's mechanical life is rated at 10,000,000 operations typical, and the operating temperature range is -25 to +60 °C. The front face carries IP20 finger protection; the terminals themselves are IP00, so the panel enclosure must provide the environmental seal. ## Mounting and integration into your panel The auxiliary contact block (2 instantaneous contacts) shares the same coil suppression as the main contactor — verify free-wheel diode polarity if you're adding a DC suppressor across the coil terminals. No substitute or second-source cross-reference is required at this time.","metaTitle":"Siemens 3RT1026-3AF04-ZW95 SIRIUS Power Contactor, S0, 11 kW","metaDescription":"Siemens SIRIUS 3RT1026-3AF04-ZW95 power contactor, size S0. 3 NO main contacts, 11 kW at 400 V AC-3. Screw terminals, 45 mm wide, DIN rail mount. Active production, sourced to orde","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 The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 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":"110 V","at 500 V rated value":"11 kW","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":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 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":"0.82","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=144870&mlfb=3RT1026-3AF04-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AF04-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3RT1026-3AF04-ZW95?","answer":"The 3RT1034-1AN60-1AA0 is a larger-frame SIRIUS contactor and does not drop into the same S0 footprint. The 3RT1026-3AF04-ZW95 is the S0-size variant for 11 kW at 400 V; the 3RT1034 is a physically larger unit for higher current. Stick with the S0 frame if your panel is already drilled for 45 mm wide contactors."},{"question":"What are the key dimensions of the 3RT1026-3AF04-ZW95?","answer":"Width is 45 mm, height is 85 mm, and depth is 140 mm. This is the standard S0 frame size for Siemens SIRIUS contactors."},{"question":"What compliance documentation is available for this contactor?","answer":"The product carries a reference code per DIN EN 81346-2 (Q for power switching equipment). The pollution degree 3 rating and IP20 front protection indicate compliance with IEC/EN 60947 series standards. Specific RoHS, REACH, or UL documentation should be requested at time of RFQ, as the evidence does not list those certifications directly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3AF04-ZW95","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/3RT1026-3AF04-ZW95 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}}