{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AM20-0UA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AM20-0UA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AM20-0UA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AM20-0UA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-1AM20-0UA0 power contactor, size S0, 11 kW at 400 V AC-2, 15.5 A AC-4, screw terminals, 45 mm width, current production.","salesMarkdown":"It delivers 11 kW at 400 V in AC-2 use (slip-ring motors, moderate overloads) and carries a 15.5 A continuous rating in AC-4 (plugging, inching, reversing). At 45 mm wide and 85 mm tall, it fits a standard S0 footprint — same slot as other SIRIUS S0 contactors, so swapping one in doesn't force a panel layout change. The AC-2 motor rating of 11 kW at 400 V covers most medium-duty pump and fan loads. For type 2 coordination (fault withstand without welding), the spec calls for a 35 A gL/gG fuse upstream. If you're running type 1 coordination (replace contactor after fault), a 100 A fuse is allowed — that's a wide window for selectivity with upstream breakers. The auxiliary circuit (if fitted) uses the smaller 0.5–4 mm² range. That's enough for a 35 A feeder on the mains and standard 1.5 mm² control wiring.","metaTitle":"Siemens 3RT1026-1AM20-0UA0 SIRIUS Power Contactor, S0, 11 kW","metaDescription":"Siemens SIRIUS 3RT1026-1AM20-0UA0 power contactor, size S0, 11 kW at 400 V AC-2, 15.5 A AC-4. Current production. Screw terminals, 45 mm wide. RFQ for lead time.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 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 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":"208 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"208 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 (0.5 ... 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":"8.4 V·A","Apparent pick-up power of magnet coil at AC":"64 V·A","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=261236&mlfb=3RT1026-1AM20-0UA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AM20-0UA0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this contactor?","answer":"The depth is 91 mm. That's the dimension from the DIN rail mounting surface to the front of the terminals — important for enclosure depth clearance."},{"question":"What wire sizes fit the main terminals?","answer":"The screw terminals accept 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or max 2x (0.75–4 mm²) for the auxiliary circuit. For the main circuit, they take 2x (1–2.5 mm²), 2x (2.5–6 mm²), or max 2x 10 mm², plus 1x AWG 8."},{"question":"Will this drop into a panel built for 3RT1017-1AP01?","answer":"Both are SIRIUS S0 contactors with the same 45 mm width and DIN-rail mounting, so the footprint and panel cutout are identical. The difference is in the coil voltage and rating — verify your control voltage and load current against the 3RT1026's AC-2/AC-4 ratings before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AM20-0UA0","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/3RT1026-1AM20-0UA0 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}}