{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1446-1AL20-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1446-1AL20-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1446-1AL20-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1446-1AL20-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S3 power contactor, 3RT1446-1AL20-ZX95, 22 kW at 400 V AC-2, 38.2 kW at 690 V AC-3, screw terminals, DIN-rail snap-on, 70 x 146 x 139 mm.","salesMarkdown":"## SIRIUS S3 Power Contactor — 22 kW AC-2, 38.2 kW AC-3 The Siemens SIRIUS 3RT1446-1AL20-ZX95 is a size S3 power contactor rated for 22 kW at 400 V in AC-2 duty (slip-ring motor starting) and 38.2 kW at 690 V in AC-3 duty (squirrel-cage motor switching). Mounting is screw-and-snap-on onto 35 mm or 75 mm standard DIN rail, with side-by-side mounting permitted — no gap required between units, which saves rail space in a crowded panel. The main current circuit uses screw-type terminals; the control circuit accepts solid conductors from 0.5 mm² up to 4 mm², and the power circuit handles stranded cable up to 50 mm² (derated to 35 mm² at 60 °C ambient). Front face is IP20 (finger-safe), terminal area is IP00 — standard for panel-mounted contactors where the buswork is behind a deadfront. RoHS compliance date is 05/01/2012. It meets EU substance restrictions. ## Integration — What Fits and What Doesn't The S3 frame is the same footprint as other SIRIUS S3 contactors, so if you're swapping out a 3RT1044 or 3RT5045, the mounting holes and DIN-rail clips line up. The control coil voltage is not listed in this spec record — confirm the coil rating from the full order code or nameplate before wiring. If the panel sees sustained ambient above 60 °C, you'll need to derate the current-carrying capacity or move to a ventilated enclosure.","metaTitle":"Siemens 3RT1446-1AL20-ZX95 SIRIUS Power Contactor, 22 kW AC-","metaDescription":"Siemens SIRIUS 3RT1446-1AL20-ZX95 power contactor, S3 frame, 22 kW at 400 V AC-2, 38.2 kW at 690 V AC-3. DIN-rail snap-on, screw terminals, IP20 front. Current lifecycle, sourced t","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","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":"230 V","at 500 V rated value":"29.9 kW","at 60 Hz rated value":"230 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":"27 VA","apparent pick-up power of magnet coil at AC":"298 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":"0.7","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=8100&mlfb=3RT1446-1AL20-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1446-1AL20-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Will 3RT1446-1AL20-ZX95 fit in a panel designed for 3RT5046-1AM00?","answer":"Yes, both are S3 frame contactors with identical 70 x 146 x 139 mm dimensions and DIN-rail mounting. The main power terminals line up without re-drilling. The difference is the coil system: the 3RT5046 uses a wide-range electronic coil; the 3RT1446 uses a conventional tapped coil."},{"question":"What compliance documentation does this contactor carry?","answer":"RoHS compliance date is 05/01/2012. As a Siemens SIRIUS industrial control product, it typically meets IEC 60947-4-1 and carries CE marking. UL listing is not confirmed in this spec record — verify the specific UL file number if required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1446-1AL20-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/3RT1446-1AL20-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}}