This is a 3-phase, self-protected molded case circuit breaker from ABB. It is designed for use in commercial, industrial, and residential applications. The breaker offers protection against excess current, short circuits, and ground fault protection. It is rated for 600 Amps, 240 VAC and is UL listed. The breaker has adjustable trip settings for fine-tuning of the circuit protection. This breaker is suitable for use in air, dust, and fog environments.