The Siemens 3RV2021-4DA15 is a robust circuit breaker designed for motor protection, ensuring the safe and efficient operation of machinery in various industrial settings. This three-pole breaker is part of the SIRIUS 3RV2 range and is engineered to provide Class 10 overload protection. With an adjustable pick-up value current of the current-dependent overload release ranging from 18 to 25 A and a non-adjustable instantaneous short-circuit release of 325 A, it is well-suited for a wide array of applications.
The breaker features a compact design with dimensions of 45 x 96.9 x 97 mm, making it suitable for installation in space-constrained environments. It is equipped with screw-type terminals for secure and reliable connections, both for the main current circuit and auxiliary and control current circuits. The arrangement of electrical connectors is thoughtfully designed for top and bottom access, facilitating ease of installation and maintenance.
Constructed to withstand the demands of industrial use, the 3RV2021-4DA15 has a mechanical service life of 100,000 switching cycles, ensuring longevity and reliability. It also boasts an electrical endurance of the same number of cycles, highlighting its capability to handle frequent operations over time.
The circuit breaker is rated for an operating voltage of up to 690 V ac and has an operating current rating of 25 A at AC-3, making it versatile for various motor applications. It also features a temperature compensation range from -20 to +60 °C, allowing it to perform reliably across different environmental conditions.
With its finger-safe design and IP20 protection on the front and terminals, the Siemens 3RV2021-4DA15 circuit breaker is a dependable choice for motor protection, offering both performance and safety in industrial applications.