{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7045-1AV00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7045-1AV00","canonicalUrl":"https://aoctrl.com/siemens/3RT7045-1AV00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7045-1AV00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S3 contactor, 3RT7045-1AV00, 3-pole, AC coil, screw terminals, 690 V rated insulation voltage, 800 1/h AC-3 switching frequency, IP20 front, IP00 terminals.","salesMarkdown":"The Siemens 3RT7045-1AV00 is a Size S3 contactor from the SIRIUS family, built for switching three-phase motor loads up to 690 V AC-3/AC-3e at a maximum rate of 800 operations per hour. The AC coil draws 0.27 A at 50 Hz and 0.31 A at 60 Hz, with a closing power of 0.61 W and holding power of 0.26 W DC — low enough for direct PLC output drive with a suitable interposing relay. The three main NO contacts handle the power circuit; auxiliary contacts are rated 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V, and are specified as acceptable for PLC control at 17 V, 5 mA, meaning they can switch low-energy logic signals without contact reliability issues. ## Mounting and Integration — DIN-Rail Flexibility The IP20 front enclosure protects against finger contact; the terminal area is IP00, meaning wiring access is open — standard for panel-mounted contactors where the cabinet door provides the overall IP rating. ## Switching Duty and Coordination Rated for 800 operations per hour under AC-3 (squirrel-cage motor starting) and AC-3e duty, but drops to 250 ops/h under AC-4 (plugging/reversing/inching). If your application involves frequent reversing, the 250 1/h limit governs — exceeding it risks accelerated contact wear. For type 1 coordination, the recommended upstream fuse is a gL/gG NH 3NA rated 200 A. The contactor withstands a surge voltage of 6 kV (pollution degree 3), which suits industrial environments with moderate transient exposure.","metaTitle":"Siemens 3RT7045-1AV00 SIRIUS S3 Contactor, 3-Pole, AC Coil,","metaDescription":"Siemens 3RT7045-1AV00 SIRIUS S3 contactor, 3-pole, AC coil, 690 V rated, 800 1/h AC-3 switching. Screw terminals, IP20 front, DIN-rail mount. Current production, quoted on request.","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","at AC-3e maximum":"800 1/h","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":"400 V","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-3 rated value maximum":"690 V","at AC-3e rated value maximum":"690 V","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","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=1534175&mlfb=3RT7045-1AV00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7045-1AV00/alternatives.json"},"ai":{"faq":[{"question":"What are the key electrical ratings of the 3RT7045-1AV00?","answer":"Rated insulation voltage 690 V, AC-3/AC-3e switching at 690 V max, 800 operations per hour. Auxiliary contacts rated 6 A at 230 V, 3 A at 400 V, 1 A at 690 V. Coil draws 0.27 A at 50 Hz, 0.31 A at 60 Hz."},{"question":"What mounting options does the 3RT7045-1AV00 support?","answer":"Screw and snap-on mounting onto 35 mm and 75 mm DIN rails. Permits +/-180° rotation and +/-22.5° tilt on vertical surfaces. Side-by-side mounting is allowed."},{"question":"Where can I buy the 3RT7045-1AV00 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent industrial distribution. Availability and current pricing are confirmed at quote time — no stock figures or firm prices are listed here."},{"question":"What compliance documentation is available for the 3RT7045-1AV00?","answer":"The product carries a 6 kV surge voltage resistance rating and is designed for pollution degree 3 environments. For specific RoHS, REACH, UL, or IEC declarations, request the manufacturer's compliance package with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7045-1AV00","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/3RT7045-1AV00 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}}