{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1AL20-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1AL20-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1AL20-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AL20-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1026-1AL20-ZW98 power contactor, S0 frame size, 11 kW AC-2 at 400 V, 45 mm wide, screw terminals, current production.","salesMarkdown":"Rated for AC-2 duty at 11 kW on a 400 V supply, this contactor handles wound-rotor motor applications where starting current stays moderate. ## What the ratings mean in the panel The S0 frame carries a mechanical life of 10 million operations, which is the contactor's structural endurance before wear-out — not the electrical life under load, which will be lower depending on the switching duty. For AC-4 reversing duty at full rated current, expect the electrical life to be a fraction of that figure; plan spares accordingly if the application cycles frequently under load. Short-circuit coordination is specified with two levels: Type 1 coordination allows the contactor to be damaged but safe to operate after clearing a fault, using a 100 A gL/gG fuse. Type 2 coordination, which keeps the contactor usable after a fault, requires a 35 A gL/gG fuse. If the panel spec demands Type 2 — typical for critical processes where downtime for contactor replacement is unacceptable — the upstream fuse must be limited to 35 A. If you are switching an inductive load like a small contactor coil at 230 V, stay under 6 A or add a snubber. ## Wiring and integration notes The 6 mm clearance to grounded metal on the side is the minimum for the arc chamber; respect that if mounting near a panel wall or another device's live parts.","metaTitle":"Siemens SIRIUS 3RT1026-1AL20-ZW98 Power Contactor, S0, 11 kW","metaDescription":"Siemens SIRIUS 3RT1026-1AL20-ZW98 power contactor, S0 size, 11 kW AC-2 at 400 V. Current production. DIN rail mount. 45 mm wide. Sourced to order.","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":"230 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"230 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=269726&mlfb=3RT1026-1AL20-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1AL20-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to this contactor?","answer":"The 3RT1023-1AL20 is a direct S0-frame sibling in the same SIRIUS family, sharing the same 45 mm width and DIN-rail mounting. The main difference is the power rating: the 3RT1023 is rated for lower motor currents. Verify the load current against the 3RT1023's AC-2/AC-3 ratings before substituting — the 3RT1026-1AL20-ZW98 carries higher ratings for the same footprint."},{"question":"What compliance documentation is available for this part?","answer":"As a Siemens SIRIUS product, it carries CE marking for the European market and is designed to meet IEC 60947-4-1 for contactors. UL and CSA listings are standard for the SIRIUS range, though the specific order code suffix (ZW98) may indicate a special version — verify the marking on the device label for your jurisdiction."},{"question":"Will this contactor drop into a panel wired for a 3RT1023-1AL20?","answer":"Yes, the 3RT1026-1AL20-ZW98 shares the same S0 frame, 45 mm width, DIN-rail mounting, and screw-terminal layout. No rewiring of the panel or busbar is needed for the mechanical fit. However, the higher current rating means the upstream protection (fuse or breaker) must be sized for the 3RT1026's full-load current, not the 3RT1023's lower rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1AL20-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/3RT1026-1AL20-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}}