{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AC20-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AC20-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AC20-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AC20-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1026-1AC20-ZW98, 24 V 50/60 Hz coil, 11 kW at 400 V AC-2, 45 mm wide, screw-type terminals, IP20 front protection.","salesMarkdown":"The coil is rated for 24 V at both 50 Hz and 60 Hz, with an operating voltage range of 0.8 to 1.1 times rated at 50 Hz and 0.85 to 1.1 at 60 Hz. This gives you a pickup window of roughly 19.2 to 26.4 VDC-equivalent on the AC coil — useful when the control transformer is shared with other loads. At 400 V AC-2 duty (starting and running slip-ring motors or moderate loads), this contactor is rated for 11 kW. That same 11 kW rating holds at 500 V and 690 V, meaning the contactor's thermal capacity saturates at the 11 kW level — you don't gain headroom by stepping up voltage beyond 500 V. For AC-4 duty (plugging, inching, reversing) at 400 V, the rated operating current is 15.5 A, which is the figure to use for high-stress switching applications. For resistive loads (AC-12), the maximum continuous current is 10 A. The auxiliary contact ratings span 10 A at 24 V down to 0.3 A at 220 V — typical for a standard contactor block, but verify your control circuit voltage against the curve if you are switching inductive loads like small relays. ## Coordination and protection requirements These are the values to plug into your short-circuit study — not the motor FLA. ## Environmental and installation constraints The front face is IP20 protected; the terminals themselves are IP00, so they require enclosure protection in washdown or dusty environments. Main current circuit uses screw-type terminals accepting 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm² stranded, or 2x (16 to 12), 2x (14 to 10), or 1x 8 AWG. Auxiliary contacts accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid. Strip lengths follow standard Siemens practice — no special tooling required.","metaTitle":"Siemens 3RT1026-1AC20-ZW98 SIRIUS Power Contactor, 11 kW at","metaDescription":"Siemens SIRIUS 3RT1026-1AC20-ZW98 power contactor, size S0, 24 V 50/60 Hz coil, 11 kW at 400 V AC-2, 45 mm wide, screw terminals, IP20 front. Current lifecycle stage.","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":"24 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"24 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=392910&mlfb=3RT1026-1AC20-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AC20-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor ratings for this contactor?","answer":"At 400 V AC-2 duty it is rated for 11 kW. The same 11 kW rating applies at 500 V and 690 V. For AC-4 duty at 400 V, the rated operating current is 15.5 A."},{"question":"What fuse coordination is required?","answer":"Type 2 coordination requires a 35 A gL/gG fuse. Type 1 coordination allows a 100 A gL/gG fuse."},{"question":"What is the physical size and mounting?","answer":"It is a size S0 contactor, 45 mm wide, 85 mm high, 91 mm deep. It mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 50022."},{"question":"What compliance documentation is available?","answer":"The part is a standard Siemens SIRUS catalog item. Compliance documentation including CE, RoHS, and REACH declarations is available through the standard Siemens documentation portal for this order code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AC20-ZW98","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/3RT1026-1AC20-ZW98 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}}