{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3AF06","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3AF06","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3AF06","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AF06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-3AF06 power contactor, S0 frame, 3 NO main contacts, 11 kW at 500 V AC-3, screw terminals, IP20 front, DIN rail mount.","salesMarkdown":"## SIRIUS 3RT1026-3AF06 — S0 Power Contactor for Motor Loads It carries 3 normally-open main contacts and is rated for 11 kW at 500 V under AC-3 duty, which is the standard category for starting and stopping squirrel-cage motors during running — the rating that governs real-world motor switching, not the higher resistive-load figure. For the more demanding AC-4 category (plugging, inching, reversing), it is rated at 15.5 A at 400 V, so it handles frequent counter-torque starts within that current envelope. Main circuit connections use screw-type terminals, accepting solid or stranded copper: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or a single conductor up to 10 mm². AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8. ## Environmental & Installation Limits The auxiliary contact block (not included in this base unit) has its own ratings: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V — these are the switching capacities for the control circuit, not the main power path.","metaTitle":"Siemens 3RT1026-3AF06 SIRIUS Power Contactor, 11 kW at 500 V","metaDescription":"Siemens SIRIUS 3RT1026-3AF06 power contactor, S0 frame, 3 NO main contacts, 11 kW at 500 V AC-3, screw terminals, IP20 front, DIN rail mount. Current production. Source to order vi","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"65 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=448346&mlfb=3RT1026-3AF06","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AF06/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor ratings for this contactor?","answer":"Under AC-3 duty (standard motor starting), it is rated at 11 kW at 500 V and 11 kW at 690 V. Under AC-4 duty (plugging, inching, reversing), it is rated at 15.5 A at 400 V. The AC-2 rating for slip-ring motors is also 11 kW at 400 V."},{"question":"What is the physical size and mounting method?","answer":"The S0 frame measures 65 mm wide, 85 mm tall, and 91 mm deep. It mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 50022. Side-by-side mounting is allowed with 6 mm clearance."},{"question":"What wire sizes does the screw terminal accept?","answer":"Main circuit screw terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or a single conductor up to 10 mm². AWG equivalents are 2x (16 to 12), 2x (14 to 10), or 1x 8."},{"question":"What short-circuit protection is required?","answer":"For Type 2 coordination (no damage to the contactor), use a gL/gG fuse rated at 35 A. For Type 1 coordination (contactor may need replacement after a fault), a 100 A gL/gG fuse is permitted."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3AF06","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/3RT1026-3AF06 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}}