The Circuit Breaker Frame, MasterPact NW40H1 , is a robust and high-performance electrical protection device designed for industrial applications. With a range of current ratings including 4000A, and a short-circuit breaking capacity of 65kA at 440VAC 50/60Hz (Icu), this three-pole fixed frame ensures reliable and efficient power distribution. Notably, it operates without a control unit, making it a simplified and essential component for circuit protection in demanding environments.