{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1446-1AG60","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1446-1AG60","canonicalUrl":"https://aoctrl.com/siemens/3RT1446-1AG60","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1446-1AG60","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S3, 3RT1446-1AG60, 38.2 kW at 690 V AC-3, screw-type terminals, 100-110 V 50/60 Hz coil, IP20 front protection.","salesMarkdown":"It carries a rated power of 38.2 kW at 690 V AC-3, making it suitable for larger three-phase induction motors in that voltage class. At 500 V AC-3, the rating is 29.9 kW, and for AC-2 duty at 400 V it is rated at 22 kW — the AC-2 figure matters for slip-ring motor starting or other applications where the contacts close under load but open with reduced current. The coil is wound for 100 V at 50 Hz and 100 to 110 V at 60 Hz, with an operating range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz. That means the coil reliably picks up between about 80 V and 110 V at 50 Hz, and between 85 V and 121 V at 60 Hz — a wide enough band to tolerate typical line sag without dropping out. Auxiliary contact ratings cover common control voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. The DC rating at 220 V is the limiting one for inductive DC loads — that 0.3 A figure governs the maximum solenoid or relay load the auxiliary contacts can break. The S3 frame occupies 70 mm width, 146 mm height, and 139 mm depth — that depth is the dimension from the rail to the furthest point of the contactor, so check enclosure depth clearance before panel layout. Side-by-side mounting is permitted, which means no mandatory spacing between units when installed in a row on the same rail. Main circuit terminals are screw-type, accepting stranded conductors up to 2x 50 mm² and solid conductors from 0.5 mm² up to 4 mm². At 40 °C ambient, the minimum permissible cross-section is 50 mm²; at 60 °C it derates to 35 mm² — that derating reflects the higher resistance and heat buildup in smaller conductors at elevated enclosure temperatures. The terminal itself is rated IP00, while the front of the contactor with cover or box terminal achieves IP20, sufficient for finger-safe touch protection inside a locked panel. The maximum switching rate in AC-1 duty is 650 cycles per hour, which sets the thermal limit for repetitive resistive-load switching.","metaTitle":"Siemens 3RT1446-1AG60 SIRIUS Power Contactor, S3, 38.2 kW at","metaDescription":"Siemens 3RT1446-1AG60 SIRIUS power contactor, size S3, rated 38.2 kW at 690 V AC-3. Screw terminals, 100-110 V 50/60 Hz coil. Active production. RFQ for lead time.","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","at 60 Hz":"0.85 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20; IP20 on the front with cover / box terminal","1 Rated Value":"50 Hz","2 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","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":"100 V","at 500 V rated value":"29.9 kW","at 60 Hz rated value":"100 ... 110 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":"2x (10 ... 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","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","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":"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=276967&mlfb=3RT1446-1AG60","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1446-1AG60/alternatives.json"},"ai":{"faq":[{"question":"What are the main power ratings for this contactor?","answer":"The contactor is rated 38.2 kW at 690 V AC-3, 29.9 kW at 500 V AC-3, and 22 kW at 400 V AC-2. These ratings determine the maximum motor load it can switch under those duty cycles."},{"question":"What is the coil voltage and operating range?","answer":"The coil is rated for 100 V at 50 Hz and 100 to 110 V at 60 Hz. The operating range is 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz."},{"question":"What wire sizes does the main terminal accept?","answer":"Screw-type terminals accept stranded conductors up to 2x 50 mm² and solid conductors from 0.5 mm² to 4 mm². At 40 °C ambient the minimum is 50 mm²; at 60 °C it derates to 35 mm²."},{"question":"What is the physical size and mounting method?","answer":"The S3 frame measures 70 mm wide, 146 mm high, and 139 mm deep. It mounts via screw fixing or snap-on onto 35 mm or 75 mm standard mounting rails, and side-by-side mounting is allowed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1446-1AG60","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/3RT1446-1AG60 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}}