{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AN24","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AN24","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AN24","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AN24","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1026-1AN24, 11 kW at 400 V AC-3, screw-type terminals, IP20 front, 45 mm width, DIN rail mount.","salesMarkdown":"The Siemens 3RT1026-1AN24 is a SIRIUS power contactor in size S0, rated for 11 kW at 400 V in AC-3 duty — the motor-switching rating that governs the real load it can handle. It carries 11 kW at 500 V and 690 V as well, so the same unit covers 400 V, 500 V, and 690 V motor circuits without up-sizing. Front face is IP20; the terminal area is IP00, meaning the wiring compartment is open to the panel environment — standard for contactors mounted inside a closed enclosure. Width is 45 mm, depth 140 mm, height 85 mm. Side-by-side mounting is allowed — no gap needed between contactors on the rail, which saves panel width. ## Ratings and Coordination AC-4 rating at 400 V is 15.5 A — that is the reversing or inching duty current, lower than the AC-3 motor rating. For frequent plugging or jogging, size the contactor against the AC-4 figure, not the AC-3 kW number. Type 2 coordination (no-weld after fault) requires a 35 A gL/gG fuse upstream. Type 1 coordination (equipment may be damaged but no fire risk) allows a 100 A gL/gG fuse. The 35 A fuse is the tighter protection that keeps the contactor reusable after a short circuit. Main and auxiliary/control circuits use screw-type terminals. Main terminals accept 2x (1 to 2.5 mm²) solid or stranded, up to 2x 10 mm² maximum. Auxiliary/control terminals accept 2x (0.5 to 1.5 mm²) solid, 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). AWG equivalents for main contacts: 2x (16 to 12), 2x (14 to 10), 1x 8. Two instantaneous auxiliary contacts are built in — no add-on block needed for basic signaling or interlocking.","metaTitle":"Siemens 3RT1026-1AN24 SIRIUS Power Contactor, S0, 11 kW at 4","metaDescription":"Siemens 3RT1026-1AN24 SIRIUS power contactor, size S0, 11 kW at 400 V AC-3, screw terminals, IP20 front, DIN rail mount, current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"140 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","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","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","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 400 V rated value":"11 kW","at 50 Hz rated value":"220 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"220 V","at 690 V rated value":"11 kW","Instantaneous Contact":"2","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"11 kW","at AC-4 at 400 V rated value":"15.5 A","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 100 A","operational current at AC-12 maximum":"10 A","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","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","operational current at AC-15 at 230 V rated value":"6 A","operational current at AC-15 at 400 V rated value":"3 A","Inductive Power Factor With Closing Power Of The Coil":"0.72","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","type of connectable conductor cross-sections at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Of The Contactor With Added Electronically Optimized 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=402429&mlfb=3RT1026-1AN24","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AN24/alternatives.json"},"ai":{"faq":[{"question":"Will 3RT1026-1AN24 drop into a panel specified around 3RT1026-1AB00 without rewiring?","answer":"Both are size S0 SIRIUS contactors with the same 45 mm width, 85 mm height, and 140 mm depth, and both mount on 35 mm DIN rail. The 1AB00 variant uses a different coil voltage; verify coil compatibility before substitution. Terminal layout and auxiliary contact count are identical, so no rewiring of the power circuit is needed if the coil voltage matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AN24","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/3RT1026-1AN24 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}}