{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1046-3AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1046-3AH00","canonicalUrl":"https://aoctrl.com/siemens/3RT1046-3AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1046-3AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1046-3AH00 power contactor, Size S3, screw-type terminals, 55 kW at 500 V, 80 A AC-4 at 400 V, snap-on mounting onto 35 mm and 75 mm rail.","salesMarkdown":"The Siemens 3RT1046-3AH00 is a SIRIUS power contactor in the Size S3 frame, rated for 55 kW at 500 V and 80 A in AC-4 duty at 400 V. Snaps onto 35 mm or 75 mm standard mounting rail — the 75 mm option is less common but saves a rail adapter on heavy-gauge panels. Dimensions are 146 mm high, 70 mm wide, 139 mm deep — the 70 mm width is the S3 standard, so it occupies one slot in a typical 600 mm enclosure grid. IP20 on the front with the cover installed; the terminal area is IP00, meaning the live parts are exposed until the enclosure door is closed. ## Duty ratings and thermal limits AC-1 (resistive) allows 900 operating cycles per hour; AC-3 (motor start) allows 850; AC-4 (reversing/inching) drops to 250.","metaTitle":"Siemens 3RT1046-3AH00 SIRIUS Power Contactor, 55 kW at 500 V","metaDescription":"Siemens SIRIUS 3RT1046-3AH00 power contactor, Size S3, 55 kW at 500 V, 80 A AC-4 at 400 V. Screw terminals, DIN-rail snap-on. Current lifecycle stage. Available 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":"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)":"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=109659&mlfb=3RT1046-3AH00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1046-3AH00/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT1046-3AH00?","answer":"The 3RT1044-1FB46 is a smaller-frame sibling in the same SIRIUS family, but it will not drop into the same panel without rewiring — the 3RT1046-3AH00 is Size S3 with a 70 mm width and higher AC-4 current rating, while the 3RT1044-1FB46 is a Size S2 frame with different terminal spacing and lower ratings. No direct pin-to-pin substitute exists; the 3RT1046-3AH00 is the higher-capacity part."},{"question":"What compliance documentation does Siemens provide for 3RT1046-3AH00?","answer":"RoHS compliance is confirmed with a substance prohibition date of 05/01/2012. Pollution degree 3 per IEC 60947-1 is specified. The contactor carries the SIRIUS brand and is designed to IEC/EN 60947-4-1 standards for power contactors."},{"question":"Where can I buy 3RT1046-3AH00?","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."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1046-3AH00","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/3RT1046-3AH00 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}}