A Three Pole MCB (Miniature Circuit Breaker) is designed to protect three-phase electrical circuits from overloads and short circuits. It provides protection for all three phases in a three-phase system, ensuring that all phases are disconnected simultaneously in the event of a fault. This type of MCB is commonly used in industrial and commercial applications where three-phase power is required, offering overcurrent protection and enhancing system reliability. The three-pole design ensures that electrical circuits remain balanced and safe, making it ideal for distribution boards, panel boards, and sub-distribution boards.