{"product_id":"siemens-circuit-breaker-size-s0-class-10a-release-2-8-4a-n-release-52a","title":"Siemens Circuit breaker, size S0, class 10A-release 2.8-4A, N release, 52A","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens SIRIUS 3RV2021-1EA15 is a three-pole motor protection circuit breaker, size S0, designed for reliable switching and protection of small 3-phase motors and load feeders. It features an adjustable thermal overload release ranging from 2.8 A to 4 A, a magnetic short-circuit trip unit rated at 52 A, and includes one NO + one NC auxiliary contact for status indication and control functions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Overload Release Range:\u003c\/strong\u003e 2.8 A to 4 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Size S0:\u003c\/strong\u003e Compact footprint for control panels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Class:\u003c\/strong\u003e Class 10 (overload) for motor protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts:\u003c\/strong\u003e 1 NO + 1 NC transverse switch included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated Operational Voltage:\u003c\/strong\u003e Up to 690 V AC (AC-3\/AC-3e duty)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-Circuit Protection:\u003c\/strong\u003e Magnetic trip unit – response value 52 A, breaking capacity up to 100 kA at 400 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e DIN rail (35 mm) or screw mounting, with screw-type terminals\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\u003eProduct Series:\u003c\/strong\u003e SIRIUS 3RV2 Motor Protection Circuit Breakers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Main Poles:\u003c\/strong\u003e 3 (three-phase switching)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Current Range:\u003c\/strong\u003e 2.8 … 4 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage (Main Circuit):\u003c\/strong\u003e 20 … 690 V AC; rated AC-3 up to 690 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Power (AC-3):\u003c\/strong\u003e 0.8 kW at 230 V, 1.5 kW at 400 V, 3.0 kW at 690 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShort-Circuit Breaking Capacity (Icu):\u003c\/strong\u003e 100 kA at 400 V; 6 kA at 690 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Contacts: NO\/NC:\u003c\/strong\u003e 1 NO + 1 NC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Terminal Connection:\u003c\/strong\u003e Screw terminals for conductor cross-section up to 2x(2.5…10 mm²) solid\/stranded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Operating Temperature:\u003c\/strong\u003e -20 °C to +60 °C; Storage: -50 °C to +80 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Dimensions:\u003c\/strong\u003e Height 97 mm × Width 45 mm × Depth 97 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection Class:\u003c\/strong\u003e IP20 (front and terminals)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrical Endurance:\u003c\/strong\u003e ~100 000 switching cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Germany\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\u003eCE Marking: Conforms to EU Low Voltage and Machinery Directives\u003c\/li\u003e\n\u003cli\u003eStandards: IEC\/EN 60947 series for motor protection circuit breakers\u003c\/li\u003e\n\u003cli\u003eTrip Class: Class 10 per motor protection standards\u003c\/li\u003e\n\u003cli\u003eRoHS Compliant: Free from restricted hazardous substances since 10\/01\/2009\u003c\/li\u003e\n\u003cli\u003eProtection Class (front): IP20 – finger-safe design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eIdeal for protecting small three-phase motors and feeders where compact design and high switching capacity are required. Commonly used in machine tools, packaging lines, pumps, fans and general industrial automation installations.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775102201920,"sku":"3RV2021-1EA15","price":1193.65,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3RV2021-1EA15.jpg?v=1761204900","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-circuit-breaker-size-s0-class-10a-release-2-8-4a-n-release-52a","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}