{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1046-1AV04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1046-1AV04","canonicalUrl":"https://aoctrl.com/siemens/3RT1046-1AV04","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1AV04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1046-1AV04, Size S3, 55 kW at 500 V AC-3, screw-type terminals, snap-on 35/75 mm rail.","salesMarkdown":"It carries a 55 kW rating at 500 V in AC-3 duty, which is the standard category for squirrel-cage motor starting — so this contactor handles the inrush and breaking of motor current under running conditions, not just resistive loads. At 400 V, the same contactor is rated 45 kW in AC-2 duty (slip-ring motor starting) and 80 A in AC-4 duty (plugging/reversing/inching). That AC-4 current matters if your application does frequent reversing or jogging — the contactor is sized for the thermal stress of those cycles, not just the run current. Mechanical life is 10 million operations typical, and the maximum switching rates are 900 cycles/hour at AC-1, 850 at AC-3, and 250 at AC-4. For a conveyor line cycling every 30 seconds, the AC-3 rate gives headroom; for a press that reverses every 10 seconds, check the AC-4 rate against your duty cycle. The coil operates on 50 Hz with a voltage tolerance of 0.8 to 1.1 times the rated value. Side-by-side mounting is allowed without derating for current, which saves rail space in multi-contactor panels. Terminals accept solid conductors up to 4 mm² (2x) and stranded up to 50 mm² (2x). ## Protection and environment The enclosure is IP20 on the front with the cover or box terminal fitted; the terminal area itself is IP00. That's standard for panel-mounted contactors — not for washdown or outdoor use. In a steel mill near the rolling stands, the +60 °C operating limit means it can sit in a warm cabinet but not directly above a furnace. Compliance documentation (RoHS, REACH) is typically available from Siemens on request for the SIRIUS series.","metaTitle":"Siemens 3RT1046-1AV04 SIRIUS power contactor, S3, 55 kW at 5","metaDescription":"Siemens 3RT1046-1AV04 SIRIUS power contactor, Size S3, rated 55 kW at 500 V AC-3. Screw terminals, snap-on DIN rail. Active production. RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"188 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 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":"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":"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":"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=253197&mlfb=3RT1046-1AV04","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1AV04/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor ratings for this contactor?","answer":"The contactor is rated 55 kW at 500 V in AC-3 duty, 45 kW at 400 V in AC-2 duty, and 80 A at 400 V in AC-4 duty. Mechanical life is 10 million operations typical."},{"question":"What is the mounting and wiring specification?","answer":"It mounts on 35 mm or 75 mm DIN rail via screw or snap-on. Main circuit terminals accept solid up to 4 mm² (2x) and stranded up to 50 mm² (2x). Side-by-side mounting is allowed."},{"question":"Will the 3RT1046-1AV04 drop into a panel specified for the 3RT1036-1AB00?","answer":"The 3RT1046-1AV04 is a Size S3 contactor, while the 3RT1036-1AB00 is a different frame size. The dimensions (70 mm width, 146 mm height, 188 mm depth) differ from the smaller frame. Check the panel's drilling plan and busbar spacing before assuming a drop-in fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1046-1AV04","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/3RT1046-1AV04 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}}