{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1BG44-1AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1BG44-1AA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1BG44-1AA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BG44-1AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1026-1BG44-1AA0, screw-type terminals, 11 kW at 400 V AC-3, snap-on 35 mm DIN rail.","salesMarkdown":"The Siemens SIRIUS 3RT1026-1BG44-1AA0 is a size S0 power contactor rated for 11 kW at 400 V in AC-3 duty (motor switching), with screw-type terminals and snap-on mounting onto 35 mm DIN rail per EN 50022. Rated operational current at AC-3 is 11 kW at 400 V, and the contactor also carries an AC-4 rating of 15.5 A at 400 V for reversing or inching applications. Coil hold power is 5.4 W DC; the magnet coil closes and holds at the same power draw, simplifying the control transformer sizing. Width is 45 mm, height 85 mm, depth 150 mm — fits standard S0 contactor footprint. Degree of pollution 3 rated, so it handles conductive dust and humidity in industrial panels. Front protection is IP20 (finger-safe), terminal area is IP00 — wire connections are exposed; panel builders should cover live parts per local code. For resistive loads (AC-1), the thermal current is higher — the AC-12 operating current is 10 A. For DC switching, the contactor is rated 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — useful for DC brake coils or control circuits. AC-4 rating of 15.5 A at 400 V covers plugging and inching duty where the motor is reversed or started frequently — a more demanding thermal cycle than AC-3. Short-circuit coordination: with type 1 coordination, a 100 A gL/gG fuse is permitted; with type 2, a 35 A gL/gG fuse limits damage to the contactor after a fault.","metaTitle":"Siemens 3RT1026-1BG44-1AA0 SIRIUS Power Contactor, S0, 11 kW","metaDescription":"Siemens SIRIUS 3RT1026-1BG44-1AA0 power contactor, size S0, 11 kW at 400 V AC-3. Screw terminals, snap-on DIN rail. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"150 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 The Side":"6 mm","Rated Value":"125 V","On The Front":"IP20","Initial Value":"0.8","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","Full-scale value":"1.1","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 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","Closing power of magnet coil at DC":"5.4 W","Holding power of magnet coil at DC":"5.4 W","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","Type of voltage of the control supply voltage":"DC","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=217786&mlfb=3RT1026-1BG44-1AA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BG44-1AA0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT1026-1BG44-1AA0?","answer":"Depth is 150 mm, width 45 mm, height 85 mm — standard S0 contactor envelope."},{"question":"What wire sizes does the screw terminal accept?","answer":"Main circuit terminals accept 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), max 2x 10 mm² stranded or solid. Auxiliary terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1BG44-1AA0","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/3RT1026-1BG44-1AA0 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}}