3VA5445-7EC31-0AA0 SIEMENS

The 3VA5445-7EC31-0AA0 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 breaking capacity class C, capable of interrupting fault currents up to 100kA at 480V, ensuring safety and minimizing equipment damage. It features a TM230 trip unit, specifically configured for line protection, safeguarding against overloads and short circuits. The breaker's rated current (In) is 450A, with overload protection (Ir) fixed at 450A to prevent nuisance tripping while still providing effective overload response. Short-circuit protection (Ii) is adjustable from 5 to 10 times the rated current (In), allowing for customization based on specific application requirements. This model does not include a connection, offering flexibility in wiring configurations. The FTAM functionality enhances its performance in demanding environments. This circuit breaker provides a dependable solution for protecting electrical systems against overcurrents and short circuits. Its robust design and adjustable settings make it suitable for a wide range of applications.