{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1046-1AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1046-1AH00","canonicalUrl":"https://aoctrl.com/siemens/3RT1046-1AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1046-1AH00 power contactor, size S3, screw-type terminals, 55 kW at 500 V, 80 A AC-4 at 400 V, snap-on mounting.","salesMarkdown":"It is rated for 55 kW at 500 V and delivers 80 A in AC-4 duty at 400 V, which covers demanding reversing and inching applications where the contactor makes and breaks the motor current under load. Mounting is straightforward: it snaps onto standard 35 mm or 75 mm DIN rails and can be screw-fastened for vibration-prone environments. The headline motor rating of 55 kW at 500 V tells you this contactor handles a 55 kW induction motor on a 500 V line — common in European 500 V industrial networks. The mechanical life of 10 million operations means the coil and armature outlast several contact tip changes in high-cycle applications. The control coil operates at 50 Hz with a pick-up voltage range of 0.8 to 1.1 times the rated value, and the arcing time sits between 10 and 15 ms. That arcing window is short enough to coordinate with upstream fuses or circuit breakers without nuisance tripping.","metaTitle":"Siemens 3RT1046-1AH00 SIRIUS Power Contactor, 55 kW at 500 V","metaDescription":"Siemens SIRIUS 3RT1046-1AH00 power contactor, size S3. Rated 55 kW at 500 V, 80 A at AC-4 400 V. Current production. Screw terminals, snap-on mounting. Sourced to order.","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":"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":"48 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)":"01.05.2012","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","reference code acc. to IEC 81346-2":"Q","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","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 V·A","apparent pick-up power of magnet coil at AC":"270 V·A","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=317197&mlfb=3RT1046-1AH00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1046-1AH00/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT1046-1AH00?","answer":"The closest peer is the 3RT1044-1FB46, which is also a SIRIUS size S3 contactor but with different coil voltage and terminal configuration. The 3RT1046-1AH00 uses screw-type terminals and a 50 Hz coil, while the 3RT1044-1FB46 has a different coil variant. They share the same mounting footprint and basic switching capacity, so a panel designed for one can accept the other without rewiring the main power circuit, but the control voltage must match the replacement coil."},{"question":"What compliance documentation is available for this part?","answer":"The part is RoHS compliant with a substance prohibitance date of 01.05.2012, and it carries a pollution degree 3 rating for industrial environments. Siemens provides a CE declaration of conformity and UL file information as standard for the SIRIUS line. The full compliance pack can be included with the RFQ."},{"question":"What are the key ratings for this contactor?","answer":"The 3RT1046-1AH00 is rated for 55 kW at 500 V and 25.4 kW at 690 V for AC-3 motor duty. In AC-4 duty (reversing/inching), it handles 80 A at 400 V. The mechanical life is 10 million operations, and it operates in ambient temperatures from -25 to +60 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1046-1AH00","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/3RT1046-1AH00 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}}