{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7045-1AQ00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7045-1AQ00","canonicalUrl":"https://aoctrl.com/siemens/3RT7045-1AQ00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7045-1AQ00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT contactor, size S3, 3-pole, AC control supply, screw terminals, IP20 front, 139 x 70 x 148 mm.","salesMarkdown":"The Siemens 3RT7045-1AQ00 is a SIRIUS 3RT contactor in size S3, with three main poles and three normally open main contacts. The AC coil draws 0.27 A at 50 Hz and 0.31 A at 60 Hz. Side-by-side mounting is permitted, which helps when packing multiple contactors in a row on the rail. ## Integration Notes Dimensions are 139 mm deep, 70 mm wide, and 148 mm high. The 70 mm width fits a standard 4-module DIN-rail footprint. Main and auxiliary/control circuits use screw-type terminals. Wire sizes accepted: 2x (0.5 to 1.5 mm²) solid or stranded, and 2x (0.75 to 2.5 mm²). The auxiliary switch product extension is supported. ## Ratings & Coordination Pollution degree 3. For type of coordination 1, the required backup fuse is a gL/gG NH 3NA: 200 A. Shock resistance is 10.6g at 5 ms and 6.2g at 10 ms. Installation altitude maximum is 2000 m. Mechanical switching frequency: at AC-3 maximum 800 operations per hour, at AC-4 maximum 250 operations per hour. Auxiliary contacts are rated for PLC-level control at 17 V, 5 mA. DC-13 rating at 220 V is 0.3 A.","metaTitle":"Siemens 3RT7045-1AQ00 SIRIUS 3RT Contactor, 3-pole, AC-3 690","metaDescription":"Siemens 3RT7045-1AQ00 SIRIUS 3RT contactor, size S3, 3-pole, AC-3 rated 690 V max. Screw terminals, AC coil. IP20 front, DIN-rail mount. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 mm","Width":"70 mm","Height":"148 mm","at 50 Hz":"0.27","at 60 Hz":"0.31","On The Front":"IP20","During Storage":"-25 ... +70 °C","Of The Terminal":"IP00","at AC-3 maximum":"800 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"screw and snap-on mounting onto 35 mm and 75 mm standard mounting rail","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S3","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Degree Of Pollution":"3","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"380 V","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Insulation Voltage Rated Value":"690 V","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","closing power of magnet coil at DC":"0.61 W","holding power of magnet coil at DC":"0.26 W","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gL/gG NH 3NA: 200 A","shock resistance with sine pulse at AC":"10.6g / 5 ms, 6.2g / 10 ms","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","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":"acceptability for PLC control (17 V, 5 mA)","Type Of Voltage Of The Control Supply Voltage":"AC","operating voltage at AC-3 rated value maximum":"690 V","operational current at DC-13 at 220 V rated value":"0.3 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","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","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"50 mm²","Connectable Conductor Cross-Section For Auxiliary Contacts Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²"}},"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=1534172&mlfb=3RT7045-1AQ00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7045-1AQ00/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT7045-1AQ00?","answer":"This part is sourced to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 3RT7045-1AQ00?","answer":"The depth is 139 mm."},{"question":"What is the width of 3RT7045-1AQ00?","answer":"The width is 70 mm."},{"question":"Will 3RT7045-1AQ00 drop into a panel specified around 3RT6026-1AN20 without rewiring?","answer":"Both are SIRIUS 3RT contactors with screw terminals and DIN-rail mounting, but the 3RT7045-1AQ00 is size S3 while the 3RT6026-1AN20 is a smaller frame. Panel cutouts and terminal layouts differ; verify dimensions and terminal assignments before substitution."},{"question":"What compliance documentation is available for 3RT7045-1AQ00?","answer":"The part carries standard Siemens industrial approvals; specific documentation (RoHS, REACH, UL, IEC) is available on request as part of the RFQ process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7045-1AQ00","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/3RT7045-1AQ00 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}}