{"product_id":"siemens-power-contactor-3-pole-1no-1nc-400v-7-5kw-10a","title":"Siemens Power contactor, 3-pole, 1NO + 1NC, 400V, 7.5kW, 10A","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3RT2025-1KB40 is a SIRIUS 3RT-series 3-pole power contactor (size S0) with a 24 V DC control coil and integrated varistor. It is designed for switching three-phase motors or loads up to 7.5 kW at 400 V AC (or equivalent load ratings under AC-3\/AC-3e conditions). Its compact size, screw-terminal wiring and auxiliary contact make it suitable for control panels, motor starters and automation installations — especially where PLC-driven control or compact motor switching is required.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3-pole power contactor, size S0 (SIRIUS 3RT series)\u003c\/li\u003e\n\u003cli\u003eRated operational current: 17 A (AC-3 \/ AC-3e)\u003c\/li\u003e\n\u003cli\u003eRated motor load switching capacity: up to 7.5 kW at 400 V AC\u003c\/li\u003e\n\u003cli\u003eControl coil: 24 V DC — suitable for PLC and low-voltage control circuits\u003c\/li\u003e\n\u003cli\u003eIntegrated varistor for coil surge protection\u003c\/li\u003e\n\u003cli\u003eAuxiliary contacts: 1 NO + 1 NC (for control \/ signalling circuits)\u003c\/li\u003e\n\u003cli\u003eScrew-type terminals for main, control and auxiliary circuits\u003c\/li\u003e\n\u003cli\u003eCompact S0 frame — suitable for space-efficient panel or control-cabinet installations\u003c\/li\u003e\n\u003cli\u003eSuitable for frequent switching and industrial use\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 3RT2025-1KB40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Family:\u003c\/strong\u003e SIRIUS 3RT contactors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContactor Size:\u003c\/strong\u003e S0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Poles (main contacts):\u003c\/strong\u003e 3 (three-phase)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Contact Configuration:\u003c\/strong\u003e 3 × Normally Open (NO)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts:\u003c\/strong\u003e 1 NO + 1 NC (instantaneous auxiliary contact)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Operational Current (Ie, AC-3 \/ AC-3e):\u003c\/strong\u003e 17 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Motor Power (AC-3, 400 V):\u003c\/strong\u003e 7.5 kW\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Coil Voltage:\u003c\/strong\u003e 24 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContactor Size \/ Frame:\u003c\/strong\u003e S0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Screw terminals (main, control, auxiliary circuits)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Type:\u003c\/strong\u003e DIN-rail or panel \/ enclosure mounting (per SIRIUS 3RT standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation \/ Surge Protection:\u003c\/strong\u003e Integrated varistor for coil protection\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSuitable for PLC outputs \/ control wiring\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Operating Temperature Range:\u003c\/strong\u003e –25 °C … +60 °C (typical for SIRIUS 3RT series)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Certifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned according to international low-voltage motor-contactor standards (IEC\/EN 60947 series)\u003c\/li\u003e\n\u003cli\u003ePart of the modular SIRIUS 3RT system — ensures compatibility and industrial-grade build quality\u003c\/li\u003e\n\u003cli\u003eIntegrated surge protection and auxiliary contact configuration makes it suitable for industrial control installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe 3RT2025-1KB40 contactor is suitable for switching and controlling three-phase motors, pumps, fans or other inductive loads in industrial, commercial and automation settings. Typical applications include motor starters, control panels, automation control cabinets, conveyor drives, HVAC systems, and general machinery where space-saving, PLC-controlled contactors with auxiliary signalling are required. Its compact size and robust construction make it ideal for retrofit installations and modular control setups.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775062388800,"sku":"3RT2025-1KB40","price":1746.03,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3RT2025-1KB40.jpg?v=1764325070","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-power-contactor-3-pole-1no-1nc-400v-7-5kw-10a","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}