3VA5445-6EC31-0AA0 SIEMENS

The 3VA5445-6EC31-0AA0 is a robust 3VA5 UL frame circuit breaker from Siemens, designed for reliable circuit protection in industrial and commercial applications. This three-pole breaker boasts a high breaking capacity class H, capable of interrupting fault currents up to 65kA at 480V. It is configured for line protection, utilizing a TM230 trip unit with a fixed thermal magnetic (FTAM) function. The rated current (In) is 450A, providing ample capacity for demanding loads. This particular model does not include overload protection, focusing solely on short-circuit protection. The fixed short-circuit protection (Ii) is adjustable from 5 to 10 times the rated current (In), allowing for customization based on specific application requirements. It is designed without connection terminals, offering flexibility in installation and connection methods. This circuit breaker ensures dependable performance and safety in electrical distribution systems. Its robust design and high breaking capacity make it suitable for a wide range of applications where reliable circuit protection is crucial.