Why Choose Hager MCCB? Choosing the right MCCB is important for protecting electrical equipment and maintaining the safety and reliability of a power distribution system. Hager MCCB offers dependable circuit protection, practical installation, and reliable switching performance for a wide range of electrical applications. For the correct MCCB, users should select the current rating, number of poles, breaking capacity, voltage rating, and protection characteristics according to the electrical system requirements.