{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AL00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AL00","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AL00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AL00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S0, 3RT1026-1AL00, 3 NO main contacts, 11 kW at 400 V AC-3, screw terminals, 45 mm wide, DIN-rail mount.","salesMarkdown":"It is rated for 11 kW motor switching at 400 V AC-3 and also 11 kW at 690 V AC-3, making it a direct-fit for three-phase induction motors up to that power in standard 400 V or 690 V line-fed panels. If your application cycles the contactor under load (crane drives, conveyor reversers), this is the number that governs contact life, not the AC-3 rating. For resistive loads (AC-12), the contactor handles 10 A. The coil operates at 50 Hz with a voltage tolerance of 0.8 to 1.1 times rated. That means on a 230 V coil the contactor holds in down to about 184 V and picks up reliably at 253 V — useful if your panel has a weak supply or long cable runs. The auxiliary contact ratings span 10 A at 24 V down to 0.3 A at 220 V (–), so the same block can switch PLC-level DC loads or higher-voltage AC pilot circuits. Width is 45 mm, height 85 mm, depth 91 mm — the S0 footprint fits a standard 45 mm slot on the DIN rail. The main circuit uses screw-type terminals accepting 2x (1 to 2.5 mm²) solid/stranded, up to 2x 10 mm². The auxiliary circuit accepts 2x (0.5 to 1.5 mm²) up to 2x (0.75 to 4 mm²). No special tools beyond a screwdriver needed. ## Protection and coordination Maximum operating altitude is 2000 m without derating.","metaTitle":"Siemens 3RT1026-1AL00 SIRIUS Power Contactor, 11 kW at 400 V","metaDescription":"Siemens 3RT1026-1AL00 SIRIUS power contactor, Size S0, 11 kW at 400 V AC-3, 3 NO main contacts, 45 mm wide, current production. Available to order against RFQ.","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 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":"125 V","at 500 V rated value":"11 kW","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":"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=505207&mlfb=3RT1026-1AL00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AL00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1026-1AL00?","answer":"The 3RT1026-1AL00 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest second-source for 3RT1026-1AL00?","answer":"The closest functional peer is the 3RT1023-1AL20 — same Size S0 frame, same 3 NO main contacts, but with a different coil voltage or auxiliary contact configuration. It will drop into the same panel footprint without rewiring the main power circuit, but check the coil voltage matches your control circuit."},{"question":"What is the depth of 3RT1026-1AL00?","answer":"The depth is 91 mm. Combined with a width of 45 mm and height of 85 mm, it fits the standard S0 DIN-rail footprint."},{"question":"What is the AC-4 current rating of 3RT1026-1AL00?","answer":"The AC-4 rated current is 15.5 A at 400 V. This is the switching current for reversing or inching duty under full motor load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AL00","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/3RT1026-1AL00 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}}