{"product_id":"siemens-power-contactor-3-pole-size-s3-1no-1nc-37kw-80a","title":"Siemens Power contactor, 3-pole, size S3, 1NO + 1NC, 37kW, 80A","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3RT2045-1AF00 is a 3-pole power contactor from the SIRIUS 3RT2 family, size S3, designed for heavy-duty AC motor and load switching. It is rated for 80 A contact current and up to 37 kW at 400 V (AC-3), making it suitable for large motors and industrial applications. The unit includes 1 NO + 1 NC auxiliary contact, uses screw-terminal connections, and is controlled via a 110 V AC coil at 50 Hz.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSIRIUS 3RT2 series power contactor — size S3\u003c\/li\u003e\n\u003cli\u003e3-pole main contacts for three-phase load switching\u003c\/li\u003e\n\u003cli\u003eMain contact rating: 80 A (AC-3), 37 kW \/ 400 V\u003c\/li\u003e\n\u003cli\u003eAuxiliary contacts: 1 NO + 1 NC — useful for control circuit, signalling or interlocks\u003c\/li\u003e\n\u003cli\u003eScrew-terminal connections — secure wiring for main and auxiliary circuits\u003c\/li\u003e\n\u003cli\u003eIEC\/EN standard compliance for industrial motor switching applications\u003c\/li\u003e\n\u003cli\u003eRobust insulation and surge-voltage resistance for industrial environments\u003c\/li\u003e\n\u003cli\u003eMechanical endurance — designed for very high number of switching cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3RT2045-1AF00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContactor Size:\u003c\/strong\u003e S3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles (Main Contacts):\u003c\/strong\u003e 3 (three-phase switching)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts:\u003c\/strong\u003e 1 NO + 1 NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Main Current (AC-3):\u003c\/strong\u003e 80 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Motor Power (400 V, AC-3):\u003c\/strong\u003e 37 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil Voltage:\u003c\/strong\u003e 110 V AC, 50 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Voltage (main circuit):\u003c\/strong\u003e up to 1,000 V (pollution degree 3)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurge Voltage Resistance (main circuit):\u003c\/strong\u003e 8 kV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class (front):\u003c\/strong\u003e IP20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Service Life (typical):\u003c\/strong\u003e 10,000,000 switching cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Standards\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart of Siemens SIRIUS 3RT2 industrial contactor family\u003c\/li\u003e\n\u003cli\u003eIEC\/EN-compliant for motor switching (AC-3) and general load applications\u003c\/li\u003e\n\u003cli\u003eInsulation and surge-voltage specifications conform to industrial use standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIdeal for controlling large three-phase motors, pumps, compressors, fans, conveyors, or other heavy industrial equipment. Suitable for motor-starter panels, switchgear, industrial machine control systems, and any application where high current capacity, reliable switching, and auxiliary contact signalling are required.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775036043328,"sku":"3RT2045-1AF00","price":4713.33,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3RT2045-1AF00.jpg?v=1765125553","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-power-contactor-3-pole-size-s3-1no-1nc-37kw-80a","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}