{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1326-3XF48-0LA3","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1326-3XF48-0LA3","canonicalUrl":"https://aoctrl.com/siemens/3RT1326-3XF48-0LA3","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1326-3XF48-0LA3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, power contactor, size S0, 4 NO main contacts, 11 kW at AC-2 400 V, 110 V DC coil with varistor, screw terminals, screw and snap-on mounting onto 35 mm DIN rail, IP20 front.","salesMarkdown":"## What this SIRIUS size S0 contactor carries The Siemens 3RT1326-3XF48-0LA3 is a SIRIUS power contactor in the size S0 frame, rated for 11 kW at AC-2 duty at 400 V. It carries four normally-open main contacts and no NC main contacts, so it's built for make-only switching — think resistive or lightly inductive loads where you need to close multiple poles simultaneously. The 110 V DC coil includes a built-in varistor surge suppressor, which saves you an external snubber on the coil circuit. Screw-type terminals on the main circuit accept up to 2x 10 mm² stranded or 1x 12 AWG, and the control circuit takes 2x (0.25... 2.5 mm²) solid. ## Integration into a panel — what fits At 71 mm wide, 119 mm tall, and 101 mm deep, this contactor fits the standard S0 footprint. The IP20 front face means finger-safe above the panel; the terminal area carries IP00, so live parts are exposed below the mounting surface — plan for finger-duct covers or shrouding if the panel is open. Side-by-side mounting is rated for full current without derating, which keeps the rail density up. The varistor is integrated, so no separate surge suppressor module to wire in. For type 2 coordination, the recommended upstream fuse is 35 A gL/gG; for type 1, 63 A gL/gG. That's your selectivity headroom when sizing the feeder breaker.","metaTitle":"Siemens 3RT1326-3XF48-0LA3 SIRIUS Power Contactor, 4 NO, 11","metaDescription":"Siemens SIRIUS 3RT1326-3XF48-0LA3 power contactor, size S0, 4 NO main contacts, 11 kW at AC-2 400 V, 110 V DC coil with varistor, screw terminals, DIN rail mount, IP20 front. Curre","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"101 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"71 mm","Height":"119 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"110 V","On The Front":"IP20","Initial Value":"0.7","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":"-40 ... +70 °C","Full-scale value":"1.25","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","Instantaneous Contact":"2","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","Design of the surge suppressor":"with varistor","Closing power of magnet coil at DC":"15 W","Holding power of magnet coil at DC":"11 W","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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"4","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","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","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=395475&mlfb=3RT1326-3XF48-0LA3","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1326-3XF48-0LA3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1326-3XF48-0LA3 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 3RT1326-3XF48-0LA3's listed depth?","answer":"The depth is 101 mm. Combined with the 71 mm width and 119 mm height, it fits the standard S0 contactor footprint."},{"question":"What solid conductor size does the control circuit accept?","answer":"The control circuit terminals accept 2x (0.25... 2.5 mm²) solid conductors. The main circuit screw terminals accept up to 2x 10 mm² stranded or 1x 12 AWG."},{"question":"What compliance documentation does Siemens provide for this contactor?","answer":"The reference code per DIN EN 81346-2 is Q. The part is rated for degree of pollution 3 and operating temperature from -40 to +70 °C. Standard Siemens declarations (RoHS, REACH, CE) apply to the SIRIUS line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1326-3XF48-0LA3","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/3RT1326-3XF48-0LA3 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}}