3VA5150-1MH31-0AA0 SIEMENS

The 3VA5150-1MH31-0AA0 is a robust and reliable circuit breaker from Siemens, designed for starter protection applications. It falls under the 3VA5 UL frame series, specifically sized for 125A. This three-pole circuit breaker is equipped with a TM120M trip unit, configured for AM (Starter Protection) functionality. The rated current (In) is 50A, optimized for protecting motor starters. Notably, this model does not incorporate overload protection, focusing primarily on short-circuit interruption. The short-circuit protection (Ii) is adjustable within a range of 5 to 12 times the rated current (In), providing flexibility in tailoring the protection to specific motor characteristics. This allows for precise coordination with motor starting curves, preventing nuisance tripping during inrush currents. The 3VA5150-1MH31-0AA0 is designed without connection terminals, offering flexibility in choosing appropriate connection methods based on the application requirements. This circuit breaker ensures reliable and fast disconnection of the motor starter in the event of a short circuit, safeguarding both the motor and the electrical system. Its compact design and UL certification make it suitable for a wide range of industrial applications where motor protection is critical. Siemens' commitment to quality ensures long-term performance and dependability.