{"product_id":"siemens-circuit-breaker-for-motor-protection-size-s0-1no-1nc-1","title":"Siemens Circuit breaker for motor protection, size S0, 1NO+1NC","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3RV2021-1CA15 is a compact SIRIUS 3RV2 motor-protection circuit breaker (size S0) designed for reliable protection of three-phase motors. It provides thermal (overload) and magnetic (short-circuit) protection, manual switching, and integrated auxiliary signalling. With a Class 10 trip curve, adjustable current range, and robust switching capacity, it is ideal for industrial motor-control centers and automation systems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMotor-protection circuit breaker, size S0\u003c\/li\u003e\n\u003cli\u003eClass 10 tripping characteristic for standard motor starting\u003c\/li\u003e\n\u003cli\u003eThermal overload protection with adjustable A-release: 1.8…2.5 A\u003c\/li\u003e\n\u003cli\u003eMagnetic N-release for short-circuit protection: 33 A\u003c\/li\u003e\n\u003cli\u003eStandard switching capacity for industrial motor circuits\u003c\/li\u003e\n\u003cli\u003eThree-pole design for 3-phase motors and loads\u003c\/li\u003e\n\u003cli\u003eScrew terminals for secure wiring and fast installation\u003c\/li\u003e\n\u003cli\u003eIntegrated transverse auxiliary switches (1 NO + 1 NC) for signalling and interlocking\u003c\/li\u003e\n\u003cli\u003eSuitable for use in motor starters, control panels, and MCCs\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 3RV2021-1CA15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\u003c\/strong\u003e SIRIUS 3RV2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit Breaker Size:\u003c\/strong\u003e S0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoles:\u003c\/strong\u003e 3-pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Overload Release (A-release):\u003c\/strong\u003e Adjustable 1.8…2.5 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic Short-Circuit Release (N-release):\u003c\/strong\u003e 33 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Class:\u003c\/strong\u003e Class 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Operating Voltage:\u003c\/strong\u003e Up to 690 V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitching Capacity:\u003c\/strong\u003e Standard switching capacity for motor protection (SIRIUS size S0)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Switches:\u003c\/strong\u003e Transverse 1 NO + 1 NC (integrated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminal Type:\u003c\/strong\u003e Screw terminal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN-rail (35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Temperature:\u003c\/strong\u003e –20 °C to +60 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Overload protection, short-circuit protection, manual ON\/OFF switching\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\u003eSIRIUS 3RV2 motor-protection standard\u003c\/li\u003e\n\u003cli\u003eComplies with IEC and EN requirements for low-voltage motor protection\u003c\/li\u003e\n\u003cli\u003eSuitable for isolating, switching, and protecting three-phase motors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIdeal for protecting motors such as pumps, fans, conveyors, compressors, and general machinery. Commonly used in automation panels, motor control centers, and industrial machines requiring compact motor protection with Class 10 characteristics. The integrated auxiliary contacts allow status signalling and interlocks within control circuits.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775041253440,"sku":"3RV2021-1CA15","price":1409.52,"currency_code":"ZAR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3RV2021-1CA15.jpg?v=1764757421","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-circuit-breaker-for-motor-protection-size-s0-1no-1nc-1","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}