The Siemens 3RV1021-4CA10 is a robust circuit breaker designed for motor protection, ensuring the safe and efficient operation of machinery in various industrial settings. This three-pole device is part of the SIRIUS product family, renowned for its reliability and performance. With a Class 10 trip characteristic, it provides precise overload protection with an adjustable response current ranging from 17 to 22 A, and a non-adjustable short-circuit release of 286 A.
Crafted for durability, the 3RV1021-4CA10 boasts a mechanical service life of 100,000 switching cycles, making it a long-lasting solution for motor control applications. It operates effectively within a wide temperature range from -20 to +60 °C, and at installation altitudes up to 2000 metres above sea level, ensuring versatility across different environments.
The circuit breaker features screw-type terminals for secure and reliable connections, accommodating various conductor types including solid, stranded, and finely stranded with core end processing. It also has a standard switching capacity, with a rated operating voltage of 690 V and a service power at AC-3, 400 V of 11 kW.
With a compact design, the 3RV1021-4CA10 has dimensions of 97 x 45 x 96 mm, allowing for efficient use of space within control cabinets. It is designed for easy mounting onto a 35 mm standard mounting rail according to DIN EN 50022, facilitating straightforward installation and maintenance.
The device is finger-safe with a protection class of IP20 on the front, providing a degree of protection against solid objects and ensuring the safety of personnel during operation and servicing. The circuit breaker's surge voltage resistance is rated at 6,000 V, highlighting its capability to handle transient overvoltages and enhancing its robustness in industrial electrical networks.
Overall, the Siemens 3RV1021-4CA10 circuit breaker is a reliable and efficient solution for motor protection, offering precise control and safeguarding against overloads and short circuits, thereby contributing to the longevity and uninterrupted performance of industrial motors.