{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1CD25","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1CD25","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1CD25","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1CD25","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, 3RT1026-1CD25, S0 frame, screw terminals, AC-4 15.5 A at 400 V, snap-on 35 mm DIN rail.","salesMarkdown":"Rated for AC-4 duty at 15.5 A at 400 V, this contactor handles the severe switching conditions of plugging, inching, and reversing motor starts where the contacts make and break full locked-rotor current. Screw-type terminals on the main circuit accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) solid/stranded, plus AWG equivalents. The auxiliary contact block is a single instantaneous contact (1 NO/NC configurable). Side-by-side mounting is allowed with a 6 mm spacing to adjacent devices, keeping DIN-rail density practical. Pollution degree 3 means it tolerates conductive pollution typical of industrial control rooms — no special coating required.","metaTitle":"Siemens 3RT1026-1CD25 SIRIUS Power Contactor, S0 Frame, 15.5","metaDescription":"Siemens 3RT1026-1CD25 SIRIUS power contactor, S0 frame, 15.5 A AC-4 at 400 V, screw terminals, snap-on DIN rail, current production. 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":"55 mm","Height":"88 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":"42 V","at 500 V rated value":"11 kW","at 60 Hz rated value":"42 V","at 690 V rated value":"11 kW","Instantaneous Contact":"1","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","Design of the surge suppressor":"with varistor","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=191254&mlfb=3RT1026-1CD25","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1CD25/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"AC-4 at 400 V is 15.5 A — that is the rating for motor reversing and inching duty. AC-2 at 400 V is 11 kW. The auxiliary contact handles 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. Coil voltage is 42 V at 50/60 Hz."},{"question":"What compliance documentation is available for this contactor?","answer":"The part carries the SIRIUS brand and is designed to IEC/EN 60947-4-1 standards. Typical documentation includes a CE declaration of conformity, RoHS/REACH compliance statements, and a UL/CSA file for the US/Canadian markets. Specific cert numbers are on the product label."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1CD25","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/3RT1026-1CD25 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}}