{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1446-6AV66-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1446-6AV66-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1446-6AV66-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1446-6AV66-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1446-6AV66-ZX95, Size S3, screw-type terminals, 22 kW AC-2 at 400 V, 50 kW AC-1 at 230 V, snap-on mounting.","salesMarkdown":"Its 1 000 V rated insulation voltage and pollution degree 3 rating suit it for environments with conductive contamination, typical of factory-floor enclosures. For resistive heating or lighting loads (AC-1), it delivers 50 kW at 230 V and 148 kW at 690 V at 60 °C, which is the rating that governs continuous current-carrying capacity in a warm cabinet. The 90 mm width and 146 mm height with 139 mm depth define the panel footprint. Side-by-side mounting is permitted, so multiple contactors can be ganged without spacing gaps, saving DIN-rail length. Main circuit connections are screw-type terminals, accepting solid conductors from 2x 0.5 mm² up to 2x 4 mm², or AWG 7 to 1/0. For derating, the minimum permissible cable cross-section at 40 °C is 50 mm² and at 60 °C is 35 mm² — a reminder that the terminal lug must be sized for the actual load current, not just the wire gauge. ## Switching Performance and Endurance Maximum switching rate at AC-1 is 650 operations per hour. Arcing time spans 10 to 15 ms. Operating times: at AC, 10.6 g at 5 ms and 6.2 g at 10 ms; at DC, 14 to 20 ms. The operating factor at 60 Hz is 0.8 to 1.1, meaning the contactor can be energized continuously at rated voltage without overheating the coil. Auxiliary contact ratings cover 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, and 3 A at 400 V — these are the make/break capacities for control circuits, not the main power path.","metaTitle":"Siemens SIRIUS 3RT1446-6AV66-ZX95 Power Contactor, Size S3,","metaDescription":"Siemens SIRIUS 3RT1446-6AV66-ZX95 power contactor, Size S3. 22 kW AC-2 at 400 V, 50 kW AC-1 at 230 V. Screw terminals, snap-on DIN rail. Current lifecycle stage: active. Sourced to","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":"90 mm","at AC":"10.6g / 5 ms, 6.2g / 10 ms","at DC":"14 ... 20 ms","Height":"146 mm","at 60 Hz":"0.8 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP00","1 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"650 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","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 500 V rated value":"29.9 kW","at 60 Hz rated value":"480 V","at 690 V rated value":"38.2 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"22 kW","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":"50 kW","at 690 V at 60 °C rated value":"148 kW","at AWG cables for main contacts":"7 ... 1/0","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"Fuse gR: 250 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":"600 A","apparent holding power of magnet coil at AC":"21 VA","apparent pick-up power of magnet coil at AC":"300 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":"0.52","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.29","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=353302&mlfb=3RT1446-6AV66-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1446-6AV66-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation is available for this contactor?","answer":"The substance prohibitance date of 05/01/2012 confirms RoHS compliance. The insulation voltage rating of 1 000 V and pollution degree 3 indicate design for IEC 60947-4-1 environments. Standard Siemens SIRIUS documentation includes a CE declaration of conformity and UL/CSA file numbers available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1446-6AV66-ZX95","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/3RT1446-6AV66-ZX95 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}}