The Siemens 3RV1021-4BA10 is a robust and reliable circuit breaker designed for motor protection. This three-pole device offers a current rating of 20 A at 400 V ac690 V ac, with a short-circuit release of 260 A. It features a thermo-magnetic operation and comes in a compact size of 97 x 45 x 96 mm, making it suitable for various industrial applications. The circuit breaker is classified as size S0 and has a CLASS 10 A-release, ranging from 14 to 20 A. With a high breaking capacity of 100 kA, it ensures safety and efficiency in your electrical systems. The Siemens 3RV1021-4BA10 circuit breaker is designed to withstand surge voltages up to 6000 V and has an IP20 protection rating on the front, offering resistance against dust and other foreign objects. Its mechanical service life offers up to 100,000 switching cycles, ensuring long-lasting performance. This circuit breaker is an essential component for maintaining the smooth operation of your motors and protecting them from electrical faults.