The Siemens 3RV2021-4BA15 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 engineered to provide Class 10 overload protection, with an adjustable pick-up value current of the current-dependent overload release ranging from 13 to 20 A and a short-circuit release of 260 A. The circuit breaker features a compact design with dimensions of 45 x 96.9 x 97 mm, making it suitable for space-constrained environments.
Constructed with screw-type terminals for secure electrical connections, the 3RV2021-4BA15 is capable of accommodating a range of conductor cross-sections, both single or multi-stranded and finely stranded with core end processing. It is designed for easy mounting, with the ability to be installed in any position and snapped onto a 35 mm standard mounting rail according to DIN EN 60715.
The device is rated for an operating voltage of up to 690 V ac and has an operating frequency rated value of 50 to 60 Hz. It is also equipped with a mechanical service life of approximately 100,000 switching cycles, ensuring long-term reliability and reduced maintenance requirements.
With an IP20 protection rating on the front and terminals, the circuit breaker is finger-safe, providing increased safety for personnel during installation and maintenance. The ambient operating temperature range of -20 to +60 °C and the ability to function up to an installation altitude of 2,000 m above sea level make it versatile for a wide range of environmental conditions.
The Siemens 3RV2021-4BA15 is a dependable solution for motor protection, offering precise overload and short-circuit protection to enhance the longevity and performance of industrial motors.