{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2446-6AV66","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2446-6AV66","canonicalUrl":"https://aoctrl.com/siemens/3RT2446-6AV66","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2446-6AV66","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT.4 contactor, AC-1 rated 140 A at 690 V / 40 °C, 3-pole, 480 V AC 60 Hz coil, auxiliary contacts 2 NO + 2 NC, main circuit ring cable lug connection, control and auxiliary circuit screw terminal, size S3.","salesMarkdown":"## AC-1 Contactor for Resistive and Weak-Inductive Loads The Siemens 3RT2446-6AV66 is a SIRIUS 3RT.4 contactor sized for AC-1 duty — resistive heating elements, lighting banks, and lightly inductive loads where inrush is minimal. Its 140 A rating at 690 V / 40 °C defines the continuous current it can carry in open air; derate when enclosed or ganged on a DIN rail. The 3-pole main circuit terminates via ring cable lugs, while the control and auxiliary circuits use screw terminals — a mix that suits panel builds where power wiring runs larger conductors and control wiring stays at smaller gauges. ## Coil and Auxiliary Configuration Pickup and dropout voltages follow the IEC 60947-4-1 standard curve; expect pickup at roughly 85 % of rated voltage and dropout below 20 %. The auxiliary contact block ships with 2 NO + 2 NC, giving you one spare contact pair after wiring a three-wire start/stop circuit. Size S3 frame means the contactor occupies a defined footprint on the DIN rail — verify clearance for the ring-lug terminals before laying out adjacent devices. RoHS compliant since 16-05-19. REACH Article 33 information is available on request. The product family carries CE and UL/CSA approvals typical for SIRIUS contactors; verify the specific UL file number against your panel UL 508A listing if required.","metaTitle":"Siemens 3RT2446-6AV66 SIRIUS Contactor, 140 A AC-1, 480 V Co","metaDescription":"Siemens 3RT2446-6AV66 SIRIUS contactor, AC-1 rated 140 A at 690 V / 40 °C, 3-pole, 480 V AC 60 Hz coil, 2 NO + 2 NC aux contacts, size S3. Active production. RoHS compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Group Code":"R711","Product Group":"5370","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"SIRIUS 3RT.4 contactors for weak or non-inductive loads (AC-1), 3-pole up to 2 650 A","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"165.00 x 158.00 x 78.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 16-05-19","REACH Art. 33 Duty to inform according to the current list of candidates":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b565132adc8ca4f5501331a77657e7cf.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RT2446-6AV66?tree=CatalogTree","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2446-6AV66/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation is available for this contactor?","answer":"RoHS compliant since 16-05-19. REACH Article 33 information is available. Export controls are AL: N / ECCN: N."},{"question":"What is the coil voltage and frequency?","answer":"The coil is rated 480 V AC at 60 Hz."},{"question":"What are the auxiliary contact configurations?","answer":"The contactor ships with 2 normally open and 2 normally closed auxiliary contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2446-6AV66","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/3RT2446-6AV66 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}}