3VA5212-5ED31-0AA0

The 3VA5212-5ED31-0AA0 from Siemens operates as a molded case circuit breaker designed to handle demanding electrical environments. Capable of withstanding an insulation voltage of 800 volts, this unit is built to provide robust protection against electrical faults. Functioning effectively at a rated current of 125 amperes, it is suitable for various industrial applications with significant power requirements.

A notable feature of this breaker is its ability to operate under both AC and DC conditions; it supports voltages of 690 volts AC and 750 volts DC. Designed with three poles, the circuit breaker is optimized for three-phase systems where consistent and reliable operation is vital. Protection mechanisms include both long-time and instantaneous trip functions, ensuring that the breaker can respond to different overcurrent conditions appropriately.

In terms of operational durability, the 3VA5212-5ED31-0AA0 boasts a mechanical service life of approximately 20,000 operations under normal conditions. Additionally, it can handle an electrical service life of up to 8,000 operations, demonstrating its long-lasting performance in various applications. The power loss at rated current reaches 7.53 watts, with a maximum potential power loss of 23 watts, ensuring that energy efficiency is maintained during operation.

The unit is also rated at IP40 for its front part, indicating its suitability for environments where it may be exposed to limited dust and moisture. Operating within a system frequency range of 50 to 60 hertz, this molded case circuit breaker meets the diverse demands of contemporary electrical systems.