{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1XB44-0LA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1XB44-0LA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1XB44-0LA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1XB44-0LA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS Power contactor, size S0, 24 V DC coil, screw-type terminals, 11 kW at 400 V / 690 V AC-3, 45 mm width, 150 mm depth.","salesMarkdown":"The 3RT1026-1XB44-0LA2: The AC-3 motor switching rating is 11 kW at both 400 V and 690 V, so it handles standard 400 V three-phase motors up to that power level and can also be used on 690 V networks without derating the motor power. For heavy-duty jogging or inching duty (AC-4), the contactor is rated 15.5 A at 400 V. That figure governs the maximum current when the motor is started and stopped frequently under load, which is the more demanding thermal cycle than AC-3. The 45 mm width and 116 mm height fit standard panel layouts; depth is 150 mm including terminals. Side-by-side mounting is permitted, with 10 mm clearance required upwards, forwards, downwards, and at the sides for cooling and wiring access. Main circuit terminals accept 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²) stranded, up to 2x 10 mm² maximum. The auxiliary contact block (2 instantaneous contacts) uses 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid, up to 2x (0.75 to 4 mm²). The 24 V DC coil draws 10 A at 24 V rated value, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — these are the holding currents at those control voltages, useful for sizing the control transformer and power supply. Rated impulse withstand voltage of the main circuit is 6 kV, which means the contactor is designed for use in installations with overvoltage category III up to that level.","metaTitle":"Siemens 3RT1026-1XB44-0LA2 SIRIUS Power Contactor, 24 VDC, S","metaDescription":"Siemens SIRIUS 3RT1026-1XB44-0LA2 power contactor, size S0, 24 VDC coil, rated 11 kW at 400/690 V AC-3. Current production. Screw terminals, DIN rail mount.","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":"116 mm","Maximum":"2 000 m","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","At The Side":"10 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.7","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","Type of voltage":"DC","lifecycle_stage":"current","Full-scale value":"1.25","Size of contactor":"S0","Product brand name":"SIRIUS","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":"3 hp","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 110/120 V rated value":"2 hp","at 200/208 V rated value":"7.5 hp","at 220/230 V rated value":"7.5 hp","at 460/480 V rated value":"15 hp","at 575/600 V rated value":"20 hp","Of Main Circuit Rated Value":"6 kV","at AC-4 at 400 V rated value":"15.5 A","Design of the surge suppressor":"with varistor","Of Auxiliary Circuit Rated Value":"6 kV","Function Module For Communication":"No","Closing power of magnet coil at DC":"6 W","Holding power of magnet coil at DC":"5.4 W","Operating current at AC-12 maximum":"10 A","Product function Bus communication":"No","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 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","Product function Short circuit protection":"No","Number of NC contacts for auxiliary contacts":"2","Number of NO contacts for auxiliary contacts":"2","Type of voltage of the control supply voltage":"DC","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","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=317956&mlfb=3RT1026-1XB44-0LA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1XB44-0LA2/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this contactor?","answer":"The depth is 150 mm, measured from the mounting surface to the furthest terminal projection. This is a key dimension for enclosure depth selection, especially when using deep terminal shrouds or when mounting multiple devices in a shallow panel."},{"question":"What wire sizes does the main circuit accept?","answer":"The screw-type main circuit terminals accept 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²) stranded, with a maximum of 2x 10 mm². The auxiliary contact terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid, up to 2x (0.75 to 4 mm²). Use ferruled stranded wire for best connection reliability."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1XB44-0LA2","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/3RT1026-1XB44-0LA2 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}}