{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3AB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3AB00","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3AB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, S0 power contactor, 3RT1026-3AB00, 3 NO main contacts, 11 kW at 690 V AC-3, screw terminals, 45 mm width, DIN rail mount.","salesMarkdown":"## SIRIUS S0 power contactor — 3RT1026-3AB00 The Siemens 3RT1026-3AB00 is a SIRIUS S0-frame power contactor with three normally-open main contacts and no normally-closed main contacts, rated for 11 kW at both 500 V and 690 V in AC-3 duty. For standard across-the-line starting (AC-3), the 11 kW at 690 V rating covers most 400 V and 690 V three-phase induction motors up to that power. The S0 frame size means the contactor occupies the same DIN-rail footprint as other S0 accessories (overload relays, auxiliary contact blocks), so panel layout stays consistent across a BOM. Type 2 coordination requires a 35 A gL/gG fuse upstream; Type 1 coordination allows a 100 A fuse. This matters for selectivity studies — if the panel's SCCR is built around Type 2, the 35 A limit is the binding constraint. The IP20 front face protects against finger contact during panel access; the terminals themselves are IP00, so the contactor must be mounted inside a closed enclosure. ## Panel integration Screw terminals accept 2x (0.25 to 2.5 mm²) solid or 2x (1 to 2.5 mm²) stranded, with a maximum of 2x 10 mm². For AWG, that's 2x (16 to 12) solid or 2x (14 to 10) stranded, up to 1x 8 AWG. Strip length and torque values follow the terminal marking on the contactor — no special tooling needed beyond a standard screwdriver.","metaTitle":"Siemens 3RT1026-3AB00 SIRIUS S0 Power Contactor, 3 NO, 11 kW","metaDescription":"Siemens SIRIUS 3RT1026-3AB00 power contactor, S0 frame, 3 NO main contacts, rated 11 kW at 690 V AC-3. Screw terminals, DIN rail mount. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"90 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"85 mm","Maximum":"2 000 m","at 50 Hz":"0.8 ... 1.1","At The Side":"6 mm","On The Front":"IP20","1 Rated Value":"50 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 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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"40 A","Apparent holding power of magnet coil at AC":"7.8 V·A","Apparent pick-up power of magnet coil at AC":"61 V·A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"AC","Inductive power factor with closing power of the coil":"0.82","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=287685&mlfb=3RT1026-3AB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3AB00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1026-3AB00 and what is the lead time?","answer":"We source the 3RT1026-3AB00 to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price."},{"question":"Will 3RT1026-3AB00 drop into a panel specified around 3RT1023-1AL20 without rewiring?","answer":"Both are S0-frame SIRIUS contactors with the same 45 mm width and DIN-rail mounting, so the mechanical fit is identical. The 3RT1026-3AB00 carries 3 NO main contacts versus the 3RT1023-1AL20's configuration — verify the contact arrangement matches your circuit before swapping. Terminal type and wire ranges are the same screw-type design."},{"question":"What is the AC-4 rating of 3RT1026-3AB00?","answer":"The AC-4 rating at 400 V is 15.5 A. This is the current limit for reversing or inching duty where the contactor makes and breaks the motor at full voltage."},{"question":"What compliance documentation does Siemens provide for 3RT1026-3AB00?","answer":"As a SIRIUS series component, the 3RT1026-3AB00 carries CE marking for the European market and is designed to meet IEC/EN 60947-4-1. UL and CSA listings are standard for the SIRIUS contactor range; confirm specific certification numbers on the nameplate or request the declaration of conformity with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3AB00","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/3RT1026-3AB00 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}}