Siemens

<p>The Siemens SIRIUS 3RV2021-4NA10 is a 3-pole motor protection circuit breaker in size S0, designed for reliable overload and short-circuit protection of motors. It features a thermal Class 10 trip characteristic with an adjustable current response range of 23 to 28 A. The breaker has a rated operational current of 28 A and is suitable for AC-3 applications at 400 V with a rated operating power of 15 kW.</p><p>&nbsp;</p><p>This circuit breaker offers a high breaking capacity of 55 kA (Icu) at 400 V AC and includes phase failure detection for enhanced motor protection. It is approved by multiple agencies including CCC, CSA, EAC, IECEx, and UL, and complies with ATEX Directive 2014/34/EU (Ex II (2) GD).</p><p>&nbsp;</p><p>The device is mounted on a DIN rail with screw terminal connections, ensuring easy installation in industrial control panels. It has a mechanical and electrical service life of 100,000 switching cycles and operates in ambient temperatures from -20 to +60 °C, making it suitable for demanding industrial environments.</p>