The 2-1393254-4 is a W6/W9 series magnetic hydraulic Potter & Brumfield circuit breaker designed for international industrial applications. This circuit breaker features ratings up to 50 amps with multiple trip curve options including instantaneous, standard delay, short delay, and AC high inrush motor start configurations. It is available with quick-connect or screw terminal connections, and offers trip-free operation with UL 1077 recognition, CSA acceptance, and VDE approval. The breaker supports voltage ratings up to 277VAC at 50/60 Hz or 65VDC, making it suitable for a wide variety of industrial control and protection applications where reliable overcurrent protection is required.