{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AP04-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AP04-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AP04-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AP04-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-1AP04-ZX95 power contactor, size S0, 3 NO main contacts, 11 kW at 400 V AC-2, screw terminals, IP20 front, active production.","salesMarkdown":"It carries three normally-open main contacts and zero normally-closed main contacts, so it is a straightforward three-pole make-only device for three-phase motors or resistive heaters. For AC-4 duty (plugging, inching, reversing of squirrel-cage motors), it is rated 15.5 A at 400 V, which is the more demanding switching cycle that wears contacts faster. The front face carries IP20 protection — safe for finger contact in a closed panel — while the terminals themselves are rated IP00, meaning they require enclosure protection against tool contact. For a BOM freeze or long-term project, this contactor is a safe choice: the SIRIUS platform has broad installed base and Siemens typically supports these sizes for years. If you need a drop-in alternative for a panel originally specified around the 3RT1017-1AP01, note that the 3RT1026 is a larger frame (S0 vs the smaller S00 of the 3RT1017) — it will not fit the same DIN footprint without panel rework. The 3RT1026 carries higher current ratings, so it is an upgrade in capability but not a mechanical substitute.","metaTitle":"Siemens 3RT1026-1AP04-ZX95 SIRIUS Power Contactor, 11 kW AC-","metaDescription":"Siemens SIRIUS 3RT1026-1AP04-ZX95 power contactor, size S0, 3 NO main contacts, 11 kW at 400 V AC-2, screw terminals, IP20 front, active production.","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 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":"230 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 (0.5 ... 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":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 V·A","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=385322&mlfb=3RT1026-1AP04-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AP04-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"It is rated 11 kW at 400 V AC-2 for wound-rotor motor duty, and 15.5 A at 400 V AC-4 for reversing/inching. It has 3 normally-open main contacts, screw terminals, and a size S0 frame (45 mm wide, 85 mm high, 140 mm deep)."},{"question":"Will the 3RT1026-1AP04-ZX95 drop into a panel specified for the 3RT1017-1AP01?","answer":"No — the 3RT1026 is a size S0 frame, while the 3RT1017 is a smaller S00 frame. The footprint and DIN-rail spacing differ, so panel rework is required. The 3RT1026 carries higher current ratings, so it is an upgrade in capability but not a mechanical substitute."},{"question":"What wire sizes does the main circuit accept?","answer":"Screw terminals accept 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²) stranded, max 2x 10 mm². Solid wire: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). AWG: 2x (16 to 12) or 2x (14 to 10) stranded, 1x 8 max."},{"question":"What short-circuit protection is required?","answer":"For Type 2 coordination (contactor reusable after fault), use a gL/gG fuse rated 35 A. For Type 1 coordination (contactor may need replacement), use a 100 A gL/gG fuse."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AP04-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/3RT1026-1AP04-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}}