{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1326-1AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1326-1AN20","canonicalUrl":"https://aoctrl.com/siemens/3RT1326-1AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1326-1AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S0, 3RT1326-1AN20, 4 NO main contacts, 11 kW at 400 V AC-2, screw-type terminals, snap-on DIN rail mounting.","salesMarkdown":"The Siemens SIRIUS 3RT1326-1AN20 is a size S0 power contactor with four normally-open main contacts, rated for motor switching at 11 kW in AC-2 duty at 400 V. That AC-2 rating covers wound-rotor motors and moderate overloads — the kind of load profile you see on conveyors and pumps that cycle under partial load. That is the load it can switch repeatedly under the moderate inrush of a slip-ring or wound-rotor motor. For AC-3 duty (squirrel-cage motors with higher inrush), the rating will be lower — always check the specific AC-x column when matching to a motor nameplate. The contactor also carries a 10 A rated operational current at 24 V for resistive or lightly inductive control loads. Coil holding voltage is nominal 24 V; the dropout threshold sits below 18 V, which is standard for this class. Main circuit terminals accept solid conductors from 2x 0.5 to 1.5 mm² up to 2x 0.75 to 4 mm², and stranded from 2x 1 to 2.5 mm² up to 2x 2.5 to 6 mm², with a maximum of 2x 10 mm². Dimensions: 85 mm high, 61 mm wide, 91 mm deep. The 61 mm width is the S0 frame standard — it occupies three 18 mm module positions on a DIN rail. Side-by-side mounting is permitted with zero clearance, but the 6 mm side clearance to grounded metal parts must be maintained for arc flash containment. For Type 2 coordination (contactor remains operational after a fault), the fuse is gL/gG 35 A. These ratings assume a prospective short-circuit current typical of industrial distribution.","metaTitle":"Siemens 3RT1326-1AN20 SIRIUS Power Contactor, 4 NO, 11 kW AC","metaDescription":"Siemens SIRIUS 3RT1326-1AN20 power contactor, size S0, 4 NO main contacts, 11 kW AC-2 at 400 V, 10 A at 24 V. Screw terminals, DIN rail mount. Current lifecycle stage. Quoted to or","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":"61 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":"220 V","at 60 Hz rated value":"220 V","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","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 (20 ... 16), 2x (18 ... 14), 1x 12","With Type Of Coordination 1 Required":"fuse gL/gG: 63 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":"4","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":"4","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=462399&mlfb=3RT1326-1AN20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1326-1AN20/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1326-1AN20","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/3RT1326-1AN20 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}}