BW9UVCA-3 is a dustproof enclosure assembly with V-type handle designed for BW125 molded case circuit breakers in the G-TWIN series. The enclosure features a V-type handle that extends from the panel to allow direct ON/OFF switching from outside the enclosure, along with a door interlocking mechanism that prevents the door from being opened when the breaker is in the ON condition. The enclosure is equipped with knockout holes for wiring use and includes an earth terminal (M6) and mounting provisions for lead holes. This product is suitable for industrial control applications where external accessibility and dustproof protection are required, providing safe and convenient operation of circuit breaker systems in harsh environments.