The Siemens 3RV1021-4AA10 is a robust and reliable circuit breaker designed for optimal performance in a variety of industrial applications. This three-pole device offers a current rating of 16 A at 400 V ac690 V ac, ensuring efficient operation in demanding environments. With a thermo-magnetic mechanism, it provides excellent protection against overloads and short circuits, enhancing the safety and longevity of your electrical systems. The circuit breaker is compact in size, measuring 97 x 45 x 96 mm, making it suitable for installations where space is at a premium. Its screw-type terminals ensure secure and stable connections for both the main current circuit and auxiliary control circuit. With a mechanical service life of 100,000 switching cycles, this Siemens circuit breaker is built to last, offering consistent performance and minimal maintenance. Please note, this product is subject to change without notice.