{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1046-3AV00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1046-3AV00","canonicalUrl":"https://aoctrl.com/siemens/3RT1046-3AV00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1046-3AV00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S3, order code 3RT1046-3AV00, rated 55 kW at 500 V AC-3, screw-type terminals, snap-on mounting.","salesMarkdown":"The Siemens 3RT1046-3AV00 is a SIRIUS power contactor in frame size S3, rated for motor switching at 55 kW on a 500 V AC-3 line — that's the duty cycle for starting and running a standard three-phase induction motor under full load. At 690 V AC-3 the rating drops to 25.4 kW, so if your motor plate says 690 V, this contactor handles that load class. The AC-4 rating at 400 V is 80 A, which governs plugging and inching duty where the contactor makes and breaks stalled-rotor current; that's a harder thermal cycle than AC-3, and the 80 A figure tells you the contactor is sized for that abuse without derating. Mounting is screw-and-snap-on onto standard 35 mm or 75 mm DIN rail, and side-by-side mounting is permitted — no derating gap required between units in a row. That saves panel width when you're stacking contactors for multiple motor starters. The terminal enclosure is rated IP20 on the front with the cover or box terminal fitted, IP00 at the terminal itself, so it's a panel-interior part; no washdown rating, no outdoor use without an additional enclosure. Main circuit terminals are screw-type, accepting solid conductors 2x 0.25 to 2.5 mm² for control wiring, and stranded conductors 2x 10 to 50 mm² for the power loop. The 3RT1044-1FB46 is a smaller S2-frame contactor, roughly one frame size down. The 3RT1046-3AV00 (S3) carries higher current ratings — 55 kW at 500 V AC-3 vs the S2's lower power band — and accepts larger stranded conductors (50 mm² vs the S2's typical 25 mm² max). If your existing panel was built around the 3RT1044-1FB46, the 3RT1046-3AV00 will not drop in without rewiring: the S3 frame is wider (70 mm vs S2's 55 mm), the terminal spacing is different, and the mounting hole pattern on the rail clip is the same but the overall footprint grows. You'd need to re-lay out the DIN rail section and re-terminate the power cables. For a like-for-like swap, stick with the same frame size; for an upgrade to handle a larger motor, the S3 is the right move but plan for panel rework. RoHS compliance date is May 1, 2012, so the part meets the EU directive for new equipment placed on the market after that date.","metaTitle":"Siemens 3RT1046-3AV00 SIRIUS Power Contactor, S3, 55 kW at 5","metaDescription":"Siemens 3RT1046-3AV00 SIRIUS power contactor, size S3, rated 55 kW at 500 V AC-3. Screw terminals, snap-on 35/75 mm rail. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"70 mm","at AC":"10 ... 25 ms","Height":"146 mm","Stranded":"2x (10 ... 50 mm²)","at 50 Hz":"0.8 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20; IP20 on the front with cover / box terminal","1 Rated Value":"50 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":"400 V","at 500 V rated value":"55 kW","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":"spring-loaded 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 (24 ... 14)","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 (0.25 ... 1.5 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 (0.25 ... 2.5 mm²)","apparent holding power of magnet coil at AC":"22 VA","apparent pick-up power of magnet coil at AC":"270 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":"0.68","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","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=399562&mlfb=3RT1046-3AV00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1046-3AV00/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1046-3AV00","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/3RT1046-3AV00 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}}