{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1046-1AL26","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1046-1AL26","canonicalUrl":"https://aoctrl.com/siemens/3RT1046-1AL26","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1AL26","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S3, order code 3RT1046-1AL26, rated 55 kW at 500 V AC, 25.4 kW at 690 V AC, screw-type main terminals, IP20 front protection.","salesMarkdown":"Its main ratings are 55 kW at 500 V and 25.4 kW at 690 V, which means it handles typical 3-phase induction motors in that power band without needing an oversized frame. Mounting is screw-fixed or snap-on onto 35 mm and 75 mm standard DIN rails, and side-by-side mounting is permitted — useful when packing multiple contactors into a tight enclosure row. The main current circuit uses screw-type terminals, accepting stranded conductors up to 2x 50 mm² and solid/stranded combinations down to 0.5 mm² for the control wiring. ## Duty-cycle and switching rates Maximum switching rates depend on the load type: 900 operations per hour under AC-1 (resistive), 850 under AC-3 (squirrel-cage motor start/run), 350 under AC-2 (slip-ring motor), and 250 under AC-4 (plugging/inching). The integrated auxiliary contacts carry 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. For signal-level switching in a 24 VDC control loop, the 10 A rating gives plenty of headroom for multiple PLC inputs or relay coils. ## Environmental and protection","metaTitle":"Siemens 3RT1046-1AL26 SIRIUS Power Contactor, S3, 55 kW at 5","metaDescription":"Siemens 3RT1046-1AL26 SIRIUS power contactor, size S3, rated 55 kW at 500 V / 25.4 kW at 690 V. Screw terminals, IP20 front. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"90 mm","at AC":"10 ... 25 ms","Height":"146 mm","Stranded":"2x (10 ... 50 mm²)","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20; IP20 on the front with cover / box terminal","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"900 1/h","at AC-2 maximum":"350 1/h","at AC-3 maximum":"850 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm and 75 mm standard mounting rail","Size Of Contactor":"S3","Solid Or Stranded":"2x (2.5 ... 16 mm²)","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":"55 kW","at 60 Hz rated value":"230 V","at 690 V rated value":"25.4 kW","Side-By-Side Mounting":"Yes","at 1000 V rated value":"37 W","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"45 kW","at AC-4 at 400 V rated value":"80 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"50 mm²","at 60 °C minimum permissible":"35 mm²","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"38 kW","at 690 V at 60 °C rated value":"114 kW","at 1000 V at 60 °C rated value":"98 W","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 160 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 250 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"760 A","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","apparent holding power of magnet coil at AC":"27 VA","apparent pick-up power of magnet coil at AC":"298 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.7","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.29","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","number of NC contacts for auxiliary contacts instantaneous contact":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","Of The Contactor With Added Electronically Optimized 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=217709&mlfb=3RT1046-1AL26","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1AL26/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1046-1AL26?","answer":"Submit an RFQ through this listing. The part is sourced to order through independent distribution, and pricing and stock levels are confirmed at quote time."},{"question":"Will 3RT1046-1AL26 drop into a panel that was specified around 3RT1044-1FB46 without rewiring?","answer":"The 3RT1046-1AL26 is a size S3 frame, while the 3RT1044-1FB46 is a different frame size — verify the physical footprint and terminal arrangement against your existing panel layout before assuming a direct swap."},{"question":"What compliance documentation does this brand provide for 3RT1046-1AL26?","answer":"As a Siemens SIRIUS product, it typically ships with a declaration of conformity covering the relevant IEC/EN standards. Specific certifications (UL, CSA, etc.) should be confirmed on the nameplate or requested with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1046-1AL26","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/3RT1046-1AL26 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}}