{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1446-1BD40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1446-1BD40","canonicalUrl":"https://aoctrl.com/siemens/3RT1446-1BD40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1446-1BD40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1446-1BD40 power contactor, size S3, screw-type terminals, 38.2 kW at 690 V AC-3, 1000 V rated insulation voltage, snap-on mounting on 35 mm/75 mm rail.","salesMarkdown":"## SIRIUS power contactor, size S3 — 38.2 kW at 690 V The Siemens 3RT1446-1BD40 is a SIRIUS power contactor in frame size S3, rated for motor switching up to 38.2 kW at 690 V AC-3 and 29.9 kW at 500 V AC-3. Insulation voltage is 1000 V, so it handles 690 V line-to-line with margin. Main circuit terminals are screw-type, accepting solid or stranded conductors: 2x (0.5…1.5 mm²), 2x (0.75…2.5 mm²), max. 2x (0.75…4 mm²) for control wiring; 2x (2.5…16 mm²) and 2x (10…50 mm²) stranded for power. The IP20 rating on the front (with cover/box terminal) means finger-safe touch protection in the panel; the terminal itself is IP00, so live parts are exposed when the cover is off.","metaTitle":"Siemens 3RT1446-1BD40 SIRIUS Power Contactor, 38.2 kW at 690","metaDescription":"Siemens SIRIUS 3RT1446-1BD40 power contactor, size S3, 38.2 kW at 690 V AC-3, 1000 V insulation, screw terminals, snap-on DIN rail. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"70 mm","at DC":"14 ... 20 ms","Height":"146 mm","Stranded":"2x (10 ... 50 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"42 V","On The Front":"IP20; IP20 on the front with cover / box terminal","Initial Value":"0.8","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","Full-Scale Value":"1.1","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 500 V rated value":"29.9 kW","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","closing power of magnet coil at DC":"15 W","holding power of magnet coil at DC":"15 W","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)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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=175177&mlfb=3RT1446-1BD40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1446-1BD40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1446-1BD40 and how do I get a price?","answer":"We source this part to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ and we'll respond with a firm quote."},{"question":"What is 3RT1446-1BD40's listed depth?","answer":"The depth is 152 mm, width 70 mm, height 146 mm."},{"question":"What compliance documentation does this brand provide for 3RT1446-1BD40?","answer":"RoHS compliance date is May 1, 2012. The product is CE-marked under the SIRIUS series. For UL/CSA documentation, check the manufacturer's declaration or request it with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1446-1BD40","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/3RT1446-1BD40 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}}